Bio


Through measurements in space and at multiple remote sites in Antarctica, Alaska, and the continental United States, Professor Inan studies the Earth's ionosphere and upper atmosphere. Of particular interest are ionospheric effects of lightning discharges and the recently discovered phenomena of electrical discharges and luminous glows at high altitudes above thunderstorms. He also studies physical processes in the Earth's near-space environment, including space weather effects on navigation and communication signals, electrodynamic coupling of the ionosphere to the magnetosphere, wave-induced precipitation of particles out of the radiation belts, and cyclotron resonant interactions between electromagnetic waves and energetic electrons. He is also involved in the development of ultra-low-power and miniaturized radio receivers for use in remote polar regions and on micro-satellites.

Academic Appointments


Honors & Awards


  • Appleton Prize, International Radio Science Union (URSI) (2008)
  • Allan Cox Medal for Faculty Excellence in Fostering Undergraduate Research, Stanford University (2007)
  • Fellow, American Geophysical Union (2007)
  • Fellow, Institute of Electrical and Electronics Engineers (2006)
  • Group Achievement Award (CLUSTER), NASA (2005)
  • Most Outstanding Paper Award, Ionospheric Effects Symposium (2004)
  • Tau Beta Pi Award for Excellence in Undergraduate Teaching, Stanford University (1999)
  • Group Achievement Award (POLAR), NASA (1998)
  • Antarctic Mountain Named Inan Peak (78.333 S, 162.633 E) in Recognition of Service, Advisory Committee on Antarctic Names (1998)
  • Antarctic Service Medal, NSF and Department of the Navy (1994)
  • Young Scientist Award, International Union of Radio Science (URSI) (1993)
  • Group Achievement Award (Dynamics Explorer), NASA (1984)
  • Outstanding Service Award, EE Department for Excellence in Teaching (1978)

Professional Education


  • PhD, Stanford University (1977)

All Publications


  • A CubeSat receiver for the study of VLF-waves at LEO Ramos, D., Wilson, G., Sousa, A., Marshall, R., Brunetto, K., Ballenthin, J., Kay, R., Patton, J., Quigley, S., Judy, F., Starks, M., Willet-Gies, T., Tullino, C., Linscott, I., Inan, U., Pagano, T. S., Norton, C. D., Babu SPIE-INT SOC OPTICAL ENGINEERING. 2019

    View details for DOI 10.1117/12.2530479

    View details for Web of Science ID 000535229600020

  • Broadband longwave radio remote sensing instrumentation REVIEW OF SCIENTIFIC INSTRUMENTS Cohen, M. B., Said, R. K., Paschal, E. W., McCormick, J. C., Gross, N. C., Thompson, L., Higginson-Rollins, M., Inan, U. S., Chang, J. 2018; 89 (9)

    View details for DOI 10.1063/1.5041419

    View details for Web of Science ID 000446159100051

  • Broadband longwave radio remote sensing instrumentation. The Review of scientific instruments Cohen, M. B., Said, R. K., Paschal, E. W., McCormick, J. C., Gross, N. C., Thompson, L., Higginson-Rollins, M., Inan, U. S., Chang, J. 2018; 89 (9): 094501

    Abstract

    We present the performance characteristics of a high-sensitivity radio receiver for the frequency band 0.5-470 kHz, known as the Low Frequency Atmospheric Weather Electromagnetic System for Observation, Modeling, and Education, or LF AWESOME. The receiver is an upgraded version of the VLF AWESOME, completed in 2004, which provided high sensitivity broadband radio measurements of natural lightning emissions, transmitting beacons, and radio emissions from the near-Earth space environment. It has been deployed at many locations worldwide and used as the basis for dozens of scientific studies. We present here a significant upgrade to the AWESOME, in which the frequency range has been extended to include the LF and part of the medium frequency (MF) bands, the sensitivity improved by 10-25 dB to be as low as 0.03 fT/ Hz , depending on the frequency, and timing error reduced to 15-20 ns range. The expanded capabilities allow detection of radio atmospherics from lightning strokes at global distances and multiple traverses around the world. It also allows monitoring of transmitting beacons in the LF/MF band at thousands of km distance. We detail the specification of the LF AWESOME and demonstrate a number of scientific applications. We also describe and characterize a new algorithm for minimum shift keying demodulation for VLF/LF transmitters for ionospheric remote sensing applications.

    View details for PubMedID 30278759

  • Early/fast VLF events produced by the quiescent heating of the lower ionosphere by thunderstorms JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES Kabirzadeh, R., Marshall, R. A., Inan, U. S. 2017; 122 (12): 6217–30
  • Identifying the occurrence of lightning and transient luminous events by nadir spectrophotometric observation JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS Adachi, T., Sato, M., Ushio, T., Yamazaki, A., Suzuki, M., Kikuchi, M., Takahashi, Y., Inan, U. S., Linscott, I., Hobara, Y., Frey, H. U., Mende, S. B., Chen, A. B., Hsu, R., Kusunoki, K. 2016; 145: 85-97
  • Horizontal distributions of sprites derived from the JEM-GLIMS nadir observations JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES Sato, M., Mihara, M., Adachi, T., Ushio, T., Morimoto, T., Kikuchi, M., Kikuchi, H., Suzuki, M., Yamazaki, A., Takahashi, Y., Inan, U., Linscott, I., Ishida, R., Sakamoto, Y., Yoshida, K., Hobara, Y. 2016; 121 (7): 3171-3194
  • Global occurrence rate of elves and ionospheric heating due to cloud-to-ground lightning JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Blaes, P. R., Marshall, R. A., Inan, U. S. 2016; 121 (1): 699–712
  • Ship-borne LF-VLF oceanic lightning observations and modeling JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES Zoghzoghy, F. G., Cohen, M. B., Said, R. K., Lehtinen, N. G., Inan, U. S. 2015; 120 (20): 10890–902
  • Predicting conditions for the reception of one-hop signals from the Siple transmitter experiment using the Kp index JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Li, J. D., Spasojevic, M., Inan, U. S. 2015; 120 (10): 8440–47
  • An empirical profile of VLF triggered emissions JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Li, J. D., Spasojevic, M., Inan, U. S. 2015; 120 (8): 6581–95
  • Latitudinal dependence of static mesospheric Efields above thunderstorms GEOPHYSICAL RESEARCH LETTERS Kabirzadeh, R., Lehtinen, N. G., Inan, U. S. 2015; 42 (10): 4208-4215
  • Overview and early results of the Global Lightning and Sprite Measurements mission JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES Sato, M., Ushio, T., Morimoto, T., Kikuchi, M., Kikuchi, H., Adachi, T., Suzuki, M., Yamazaki, A., Takahashi, Y., Inan, U., Linscott, I., Ishida, R., Sakamoto, Y., Yoshida, K., Hobara, Y., Sano, T., Abe, T., Nakamura, M., Oda, H., Kawasaki, Z. 2015; 120 (9): 3822-3851
  • Preferential amplification of rising versus falling frequency whistler mode signals GEOPHYSICAL RESEARCH LETTERS Li, J. D., Harid, V., Spasojevic, M., Golkowski, M., Inan, U. S. 2015; 42 (2): 207–14
  • The effect of electron and ion temperature on the refractive index surface of 1-10 kHz whistler mode waves in the innermagnetosphere JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Kulkarni, P., Golkowski, M., Inan, U. S., Bell, T. F. 2015; 120 (1): 581–91
  • Return stroke speed of cloud-to-ground lightning estimated from elve hole radii GEOPHYSICAL RESEARCH LETTERS Blaes, P. R., Marshall, R. A., Inan, U. S. 2014; 41 (24): 9182-9187
  • Finite difference modeling of coherent wave amplification in the Earth's radiation belts GEOPHYSICAL RESEARCH LETTERS Harid, V., Golkowski, M., Bell, T., Li, J. D., Inan, U. S. 2014; 41 (23): 8193-8200
  • Lightning activity following the return stroke JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES Zoghzoghy, F. G., Cohen, M. B., Said, R. K., Basilico, S. S., Blakeslee, R. J., Inan, U. S. 2014; 119 (13)
  • Theoretical and numerical analysis of radiation belt electron precipitation by coherent whistler mode waves JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Harid, V., Golkowski, M., Bell, T., Inan, U. S. 2014; 119 (6): 4370-4388
  • Differing current and optical return stroke speeds in lightning GEOPHYSICAL RESEARCH LETTERS Liang, C., Carlson, B., Lehtinen, N., Cohen, M., Marshall, R. A., Inan, U. 2014; 41 (7): 2561–67
  • Analysis of magnetospheric ELF/VLF wave amplification from the Siple Transmitter experiment JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Li, J. D., Spasojevic, M., Harid, V., Cohen, M. B., Golkowski, M., Inan, U. 2014; 119 (3): 1837-1850
  • RECENT RESULTS ON EFFECTS OF LIGHTNING DISCHARGES ON THE IONOSPHERE AND THE RADIATION BELTS Inan, U. S., IEEE IEEE. 2014
  • On the Spatial Scale of Streamers Lehtinen, N. G., Inan, U. S., Ostgaard, N., IEEE IEEE. 2014
  • Extended lateral heating of the nighttime ionosphere by ground-based VLF transmitters JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Graf, K. L., Spasojevic, M., Marshall, R. A., Lehtinen, N. G., Foust, F. R., Inan, U. S. 2013; 118 (12): 7783–97
  • Highly intense lightning over the oceans: Estimated peak currents from global GLD360 observations JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES Said, R. K., Cohen, M. B., Inan, U. S. 2013; 118 (13): 6905–15

    View details for DOI 10.1002/jgrd.50508

    View details for Web of Science ID 000322192200003

  • Analysis of experimentally validated trans-ionospheric attenuation estimates of VLF signals JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Graf, K. L., Lehtinen, N. G., Spasojevic, M., Cohen, M. B., Marshall, R. A., Inan, U. S. 2013; 118 (5): 2708-2720

    View details for DOI 10.1002/jgra.50228

    View details for Web of Science ID 000325215800076

  • Statistical patterns in the location of natural lightning JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES Zoghzoghy, F. G., Cohen, M. B., Said, R. K., Inan, U. S. 2013; 118 (2): 787-796

    View details for DOI 10.1002/jgrd.50107

    View details for Web of Science ID 000317838100039

  • Utilizing nonlinear ELF generation in modulated ionospheric heating experiments for communications applications RADIO SCIENCE Jin, G., Spasojevic, M., Cohen, M. B., Inan, U. S. 2013; 48 (1): 61-68

    View details for DOI 10.1002/rds.20014

    View details for Web of Science ID 000317836400007

  • Modulation of auroral electrojet currents using dual modulated HF beams with ELF phase offset, a potential D-region ionospheric diagnostic Journal of Geophysical Research: Space Physics Inan, U., Gołkowski, M., Cohen, M. B., Moore, R. C. 2013
  • The spectral extent of chorus in the off-equatorial magnetosphere Journal of Geophysical Research: Space Physics Inan, U., Bunch, N. L., Spasojevic, M., Shprits, Y. Y., Gu, X., Foust, F. 2013
  • Characteristics of long recovery early VLF events observed by the North African AWESOME Network Journal of Geophysical Research: Space Physics Inan, U., NaitAmor, S., Cohen, M. B., T., B, R, Ghalila, H., AlAbdoadaim, M. A. 2013
  • Analysis of experimentally validated trans-ionospheric attenuation estimates of VLF signals Journal of Geophysical Research: Space Physics Graf, K. L., Lehtinen, N. G., Spasojevic, M., Cohen, M. B., Marshall, R. A., Inan, U. 2013
  • The History of Very Low Frequency (VLF)Radio Research at Stanford Inan, U., Carpenter, D. L. 2013
  • Dayside auroral hiss observed at South Pole Station Journal of Geophysical Research: Space Physics Inan, U., Yan, X., LaBelle, J., Haerendel, G., Spasojevic, M., Bunch, N. 2013
  • EMIC waves growth and guiding in the presence of cold plasma density irregularities Geophysical Research Letters Inan, U., de Soria-Santacruz, M., Spasojevic, M., Chen, L. 2013
  • Highly intense lightning over the oceans: Estimated peak currents from global GLD360 observations Journal of Geophysical Research: Atmospheres Said, R. K., Cohen, M. B., Inan, U. 2013
  • The VLF fingerprint of elves: Step-like and long-recovery early VLF perturbations caused by powerful ±CG lightning EM pulses Journal of Geophysical Research: Space Physics Inan, U., Haldoupis, C., Cohen, M., Arnone, E., Cotts, B., Dietrich, S. 2013
  • On the Relationship Between Lightning Peak Current and Early VLF Perturbations Journal of Geophysical Research: Space Physics Inan, U., Salut, M. M., Cohen, M. B., Ali, M. A., Graf, K. L., Cotts, B. R. 2013
  • Extended lateral heating of the nighttime ionosphere by ground-based VLF transmitters Journal of Geophysical Research: Space Physics Craf, K. L., Spasojevic, M., Marshall, R. A., Lehtinen, N. G., Foust, F. R., Inan, U. 2013
  • Chorus functional dependencies derived from CRRES data Geophysical Research Letters Inan, U., Spasojevic, M., Shprits, Y. Y. 2013
  • 100 days of ELF/VLF generation via HF heating with HAARP Journal of Geophysical Research: Space Physics Inan, U., Cohen, M. B., Gołkowski, M. 2013
  • MAGNETOSPHERIC WAVE POWER DENSITY FROM GROUND-BASED VLF TRANSMITTERS US-National-Committee-of-URSI National Radio Science Meeting Lauben, D. S., Cohen, M., Lehtinen, N. G., Inan, U. S. IEEE. 2013
  • Models of ionospheric VLF absorption of powerful ground based transmitters GEOPHYSICAL RESEARCH LETTERS Cohen, M. B., Lehtinen, N. G., Inan, U. S. 2012; 39
  • Very low latitude (L=1.08) whistlers GEOPHYSICAL RESEARCH LETTERS Singh, R., Cohen, M. B., Maurya, A. K., Veenadhari, B., Kumar, S., PANT, P., Said, R. K., Inan, U. S. 2012; 39
  • Harmonic minimization waveforms for modulated heating experiments at HAARP JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Jin, G., Spasojevic, M., Cohen, M. B., Inan, U. S. 2012; 117
  • Nighttime D region electron density measurements from ELF-VLF tweek radio atmospherics recorded at low latitudes JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Maurya, A. K., Veenadhari, B., Singh, R., Kumar, S., Cohen, M. B., Selvakumaran, R., Gokani, S., PANT, P., Singh, A. K., Inan, U. S. 2012; 117
  • Spatial dependence of banded chorus intensity near the magnetic equator GEOPHYSICAL RESEARCH LETTERS Haque, N., Inan, U. S., Bell, T. F., Pickett, J. S. 2012; 39
  • Long-lasting D-region ionospheric modifications, caused by intense lightning in association with elve and sprite pairs GEOPHYSICAL RESEARCH LETTERS Haldoupis, C., Cohen, M., Cotts, B., Arnone, E., Inan, U. 2012; 39
  • Terrestrial VLF transmitter injection into the magnetosphere JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Cohen, M. B., Inan, U. S. 2012; 117
  • HF beam parameters in ELF/VLF wave generation via modulated heating of the ionosphere JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Cohen, M. B., Golkowski, M., Lehtinen, N. G., Inan, U. S., McCarrick, M. J. 2012; 117
  • Morphological features of tweeks and nighttime D region ionosphere at tweek reflection height from the observations in the low-latitude Indian sector JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Maurya, A. K., Singh, R., Veenadhari, B., Kumar, S., Cohen, M. B., Selvakumaran, R., PANT, P., Singh, A. K., Siingh, D., Inan, U. S. 2012; 117
  • An Image Frequency Rejection Filter for SAW-Less GPS Receivers IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS Barth, C., Linscott, I. R., Inan, U. S. 2012; 59 (5): 1085-1092
  • Robert Arthur Helliwell obituary PHYSICS TODAY Carpenter, D., Inan, U. 2012; 65 (1): 55-56
  • Robert Helliwell, pioneer of whistler-mode research HISTORY OF GEO-AND SPACE SCIENCES Carpenter, D. L., Inan, U. S. 2012; 3 (1): 73–74
  • Off-equatorial chorus occurrence and wave amplitude distributions as observed by the Polar Plasma Wave Instrument Journal of Geophysical Research Inan, U., Bunch, N. L., Spasojevic, M., Shprits, Y. Y. 2012
  • ELF/VLF wave generation from the beating of two HF ionospheric heating sources Journal of Geophysical Research Inan, U., Cohen, M. B., Moore, R. C., Gołkowski, M., Lehtinen, N. G. 2012
  • Statistical modeling of in situ hiss amplitudes using ground measurements Journal of Geophysical Research Inan, U., Golden, D. I., Spasojevic, M., Li, W., Nishimura, Y. 2012
  • A waveguide model of the return stroke channel with a “metamaterial" corona Radio Science Inan, U., Lehtinen, N. G. 2012
  • Statistical modeling of plasmaspheric hiss amplitude using solar wind measurements and geomagnetic indices Geophysical Research Letters Inan, U., Golden, D. I., Spasojevic, M., Li, W., Nishimura, Y. 2012
  • ELF/VLF recordings during the 11 March 2011 Japanese Tohoku earthquake Geophysical Research Letters Inan, U., Cohen, M. B., Marshall, R. A. 2012
  • Long recovery VLF perturbations associated with lightning discharges Journal of Geophysical Research Inan, U., Salut, M. M., Abdullah, M., Graf, K. L., Cohen, M. B., Cotts, B. R. 2012
  • PENGUIn/AGO and THEMIS conjugate observations of whistler mode chorus waves in the dayside uniform zone under steady solar wind and quiet geomagnetic conditions Journal of Geophysical Research Inan, U., Keika, K., Spasojevic, M., Li, W., Bortnik, J., Miyoshi, Y. 2012
  • An empirical model of magnetospheric chorus amplitude using solar wind and geomagnetic indices Journal of Geophysical Research Inan, U., Golden, D. I., Spasojevic, M., Li, W., Nishimura, Y. 2012
  • An improved model of the lightning electromagnetic field interaction with the D-region ionosphere Journal of Geophysical Research Inan, U., Marshall, R. A. 2012
  • On the altitude of the ELF/VLF source region generated during “beat-wave” HF heating experiments Geophysical Research Letters Inan, U., Moore, R., Fujimaru, S., Cohen, M. B., Gołkowski, M., McCarrick, M. J. 2012
  • Morphological features of tweeks and nighttime D-region ionosphere at tweek reflection height from the observations in the low-latitude Indian sector ournal of Geophysical Research Maurya, A. K., Singh, R., Veenadhari, B., Kumar, S., Cohen, M. B., Selvakumaran, R., Inan, U. S. 2012
  • Very low latitude (L = 1.08) whistlers Geophysical Research Letters Singh, R., Cohen, M. B., Maurya, A. K., Veenadhari, B., Kumar, S., Pant, P., Inan, U. S. 2012
  • Full Wave Modeling of VLF Wave Scattering and Propagation in Curvilinear Stratified Ionosphere International Conference on Electromagnetics in Advanced Applications (ICEAA) / IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (IEEE APWC) / URSI Electromagnetic Environment and Interference Symposium (EEIS) Lehtinen, N. G., Bell, T. F., Qiu, L., Cohen, M. B., Inan, U. S. IEEE. 2012: 195–198
  • Metamaterial Waveguide Model of a Return Stroke Channel International Conference on Electromagnetics in Advanced Applications (ICEAA) / IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (IEEE APWC) / URSI Electromagnetic Environment and Interference Symposium (EEIS) Lehtinen, N. G., Cohen, M. B., Inan, U. S. IEEE. 2012: 194–194
  • A 9mW Direct RF Sampling GPS Receiver Front-End in 0.13 mu m BiCMOS IEEE International Symposium on Circuits and Systems Barth, C., Linscott, I. R., Inan, U. S. IEEE. 2012: 1287–1290
  • Transmitter-induced modulation of subionospheric VLF signals: Ionospheric heating rather than electron precipitation JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Graf, K. L., Inan, U. S., Spasojevic, M. 2011; 116
  • Modeling scattering from lightning-induced ionospheric disturbances with the discontinuous Galerkin method JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Foust, F. R., Spasojevic, M., Bell, T. F., Inan, U. S. 2011; 116
  • Design Framework for Soft-Error-Resilient Sequential Cells IEEE Radiation Effects Data Workshop (REDW)/48th IEEE International Nuclear and Space Radiation Effects Conference (NSREC) Lee, H. K., Lilja, K., Bounasser, M., Linscott, I., Inan, U. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. 2011: 3026–32
  • A tribute to Robert Helliwell (1920-2011) SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS Carpenter, D. L., Inan, U. S. 2011; 9
  • Longitudinal dependence of lightning-induced electron precipitation JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Cotts, B. R., Inan, U. S., Lehtinen, N. G. 2011; 116
  • D-region ionosphere response to the total solar eclipse of 22 July 2009 deduced from ELF-VLF tweek observations in the Indian sector JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Singh, R., Veenadhari, B., Maurya, A. K., Cohen, M. B., Kumar, S., Selvakumaran, R., PANT, P., Singh, A. K., Inan, U. S. 2011; 116
  • Cluster observations of whistler mode ducts and banded chorus GEOPHYSICAL RESEARCH LETTERS Haque, N., Inan, U. S., Bell, T. F., Pickett, J. S., Trotignon, J. G., Facsko, G. 2011; 38
  • The relationship between geophysical conditions and ELF amplitude in modulated heating experiments at HAARP: Modeling and experimental results JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Jin, G., Spasojevic, M., Cohen, M. B., Inan, U. S., Lehtinen, N. G. 2011; 116
  • Magnetospheric injection of ELF/VLF waves with modulated or steered HF heating of the lower ionosphere JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Cohen, M. B., Inan, U. S., Piddyachiy, D., Lehtinen, N. G., Golkowski, M. 2011; 116
  • DEMETER observations of ionospheric heating by powerful VLF transmitters GEOPHYSICAL RESEARCH LETTERS Bell, T. F., Graf, K., Inan, U. S., Piddyachiy, D., Parrot, M. 2011; 38
  • DEMETER observations of the ionospheric trough over HAARP in relation to HF heating experiments JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Piddyachiy, D., Bell, T. F., Berthelier, J., Inan, U. S., Parrot, M. 2011; 116
  • Discontinuous Galerkin particle-in-cell simulation of longitudinal plasma wave damping and comparison to the Landau approximation and the exact solution of the dispersion relation PHYSICS OF PLASMAS Foust, F. R., Bell, T. F., Spasojevic, M., Inan, U. S. 2011; 18 (6)

    View details for DOI 10.1063/1.3602123

    View details for Web of Science ID 000292333500012

  • On the occurrence of ground observations of ELF/VLF magnetospheric amplification induced by the HAARP facility JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Golkowski, M., Cohen, M. B., Carpenter, D. L., Inan, U. S. 2011; 116
  • Determination of solar cycle variations of midlatitude ELF/VLF chorus and hiss via automated signal detection JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Golden, D. I., Spasojevic, M., Inan, U. S. 2011; 116
  • Estimation of global lightning activity and observations of atmospheric electric field ACTA GEOPHYSICA Golkowski, M., Kubicki, M., Cohen, M., Kulak, A., Inan, U. S. 2011; 59 (1): 183-204
  • A Double Notch RF Filter Architecture for SAW-less GPS Receivers IEEE International Symposium on Circuits and Systems (ISCAS) Barth, C., Linscott, I. R., Inan, U. S. IEEE. 2011: 1804–1807
  • Magnetospherically reflected, specularly reflected, and backscattered whistler mode radio-sounder echoes observed on the IMAGE satellite: 2. Sounding of electron density, ion effective mass, ion composition, and density irregularities Journal of Geophysical Research Sonwalkar, V. S., Reddy, A., Carpenter, D. L. 2011
  • A tribute to Robert Helliwell Space Weather Carpenter, D. L., Inan, U. 2011
  • Lightning development associated with two negative gigantic jets Geophysical Research Letters Inan, U., Lu, G., Cummer, S. A., Lyons, W. A., Krehbiel, P. R., Li, J. 2011
  • On the latitudinal extent of chorus emissions as observed by the Polar Plasma Wave Instrument Journal of Geophysical Research Inan, U., Bunch, N. L., Spasojevic, M., Shprits, Y. Y. 2011
  • Continuous ground-based multiwavelength airglow measurements Journal of Geophysical Research Inan, U., Marshall, R. A., Smith, S. A., Baumgardner, J., Chakrabarti, S. 2011
  • Optical signatures of lightning-induced electron precipitation Journal of Geophysical Research Inan, U., Marshall, R. A., Bortnik, J., Lehtinen, N., Chakrabarti, S. 2011
  • Confining the angular distribution of terrestrial gamma ray flash emission Journal of Geophysical Research Inan, U., Gjesteland, T., Østgaard, N., Collier, A. B., Carlson, B. E., Cohen, M. B. 2011
  • Magnetospherically reflected, specularly reflected, and backscattered whistler mode radio-sounder echoes observed on the IMAGE satellite: 1. Observations and interpretation ournal of Geophysical Research Inan, U., Sonwalkar, V. S., Carpenter, D. L., Reddy, A., Proddaturi, R., Hazra, S. 2011
  • Asymmetric V-shaped streaks recorded on board DEMETER satellite above powerful thunderstorms Journal of Geophysical Research Inan, U., El-Lemdani, M., Pincon, J. L., Parrot, M., De Feraudy, H., Lehtinen, N. G. 2011
  • Correspondence between a plasma-based EMIC wave proxy and subauroral proton precipitation Geophysical Research Letters Inan, U., Spasojevic, M., Blum, L. W., MacDonald, E. A., Fuselier, S. A., Golden, D. I. 2011
  • First satellite-imaging observation of medium-scale traveling ionospheric disturbances by FORMOSAT-2/ISUAL Geophysical Research Letters Inan, U., Adachi, T., Otsuka, Y., Yamaoka, M., Yamamoto, M., Shiokawa, K. 2011
  • Long-range lightning geolocation using a VLF radio atmospheric waveform bank JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES Said, R. K., Inan, U. S., Cummins, K. L. 2010; 115
  • Role of the plasmapause in dictating the ground accessibility of ELF/VLF chorus JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Golden, D. I., Spasojevic, M., Foust, F. R., Lehtinen, N. G., Meredith, N. P., Inan, U. S. 2010; 115
  • Quasi-electrostatic whistler mode wave excitation by linear scattering of EM whistler mode waves from magnetic field-aligned density irregularities JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Foust, F. R., Inan, U. S., Bell, T., Lehtinen, N. G. 2010; 115
  • Mitigation of 50-60 Hz power line interference in geophysical data RADIO SCIENCE Cohen, M. B., Said, R. K., Inan, U. S. 2010; 45
  • Terrestrial gamma ray flash production by active lightning leader channels JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Carlson, B. E., Lehtinen, N. G., Inan, U. S. 2010; 115
  • A lightning discharge producing a beam of relativistic electrons into space GEOPHYSICAL RESEARCH LETTERS Cohen, M. B., Inan, U. S., Said, R. K., Briggs, M. S., Fishman, G. J., Connaughton, V., Cummer, S. A. 2010; 37
  • Propagation of whistler mode waves with a modulated frequency in the magnetosphere JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Streltsov, A. V., Golkowski, M., Inan, U. S., Papadopoulos, K. D. 2010; 115
  • Optical signatures of radiation belt electron precipitation induced by ground-based VLF transmitters JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Marshall, R. A., Newsome, R. T., Lehtinen, N. G., Lavassar, N., Inan, U. S. 2010; 115
  • On the generation of ELF/VLF waves for long-distance propagation via steerable HF heating of the lower ionosphere JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Cohen, M. B., Inan, U. S., Golkowski, M., Lehtinen, N. G. 2010; 115
  • Free-running ground-based photometric array imaging of transient luminous events JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Newsome, R. T., Inan, U. S. 2010; 115
  • Full-wave modeling of "early" VLF perturbations caused by lightning electromagnetic pulses JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Lehtinen, N. G., Marshall, R. A., Inan, U. S. 2010; 115
  • A survey of ELF and VLF research on lightning-ionosphere interactions and causative discharges JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Inan, U. S., Cummer, S. A., Marshall, R. A. 2010; 115
  • Two-dimensional frequency domain modeling of lightning EMP-induced perturbations to VLF transmitter signals JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Marshall, R. A., Inan, U. S. 2010; 115
  • Drivers of chorus in the outer dayside magnetosphere JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Spasojevic, M., Inan, U. S. 2010; 115
  • Neutron production in terrestrial gamma ray flashes JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Carlson, B. E., Lehtinen, N. G., Inan, U. S. 2010; 115
  • Elves and associated electron density changes due to cloud-to-ground and in-cloud lightning discharges JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Marshall, R. A., Inan, U. S., Glukhov, V. S. 2010; 115
  • Wave normal angles of magnetospheric chorus emissions observed on the Polar spacecraft JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Haque, N., Spasojevic, M., Santolik, O., Inan, U. S. 2010; 115
  • Fluid simulation of the collisionless plasma sheath surrounding an electric dipole antenna in the inner magnetosphere RADIO SCIENCE Chevalier, T. W., Inan, U. S., Bell, T. F. 2010; 45
  • Amplitude and phase of nonlinear magnetospheric wave growth excited by the HAARP HF heater JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Golkowski, M., Inan, U. S., Cohen, M. B., Gibby, A. R. 2010; 115
  • Initial results from AWESOME VLF receivers: set up in low latitude Indian regions under IHY2007/UNBSSI program CURRENT SCIENCE Singh, R., Veenadhari, B., Cohen, M. B., PANT, P., Singh, A. K., Maurya, A. K., Vohat, P., Inan, U. S. 2010; 98 (3): 398-405
  • ELF/VLF wave generation via ionospheric HF heating: Experimental comparison of amplitude modulation, beam painting, and geometric modulation JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Cohen, M. B., Inan, U. S., Golkowski, M., McCarrick, M. J. 2010; 115
  • Geolocation of terrestrial gamma-ray flash source lightning GEOPHYSICAL RESEARCH LETTERS Cohen, M. B., Inan, U. S., Said, R. K., Gjestland, T. 2010; 37
  • Sensitive Broadband ELF/VLF Radio Reception With the AWESOME Instrument IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING Cohen, M. B., Inan, U. S., Paschal, E. W. 2010; 48 (1): 3-17
  • VLF observations of ionospheric disturbances in association with TLEs from the EuroSprite-2007 campaign Journal of Geophysical Research Umran, I., NaitAmor, S., AlAbdoadaim, M. A., Cohen, M. B., Cotts, B., Soula, S. 2010
  • Long-Range Lightning Geo-Location Using a VLF Radio Atmospheric Waveform Bank Journal of Geophysical Research Said, R. K., Inan, U., Cummins, K. L. 2010
  • Terrestrial gamma ray flashes pinpointed (Editor's highlight on 2010-03) Geophysical Research Letters Inan, U. 2010
  • Global estimates of plasmaspheric losses during moderate disturbance intervals Annales Geophysicae Inan, U., Spasojevic, M., Sandel, B. R. 2010
  • Mitigation of 50–60 Hz power line interference in geophysical data Radio Science Cohen, M. B., Said, R. K., Inan, U. 2010
  • More evidence for a one-to-one correlation between Sprites and Early VLF perturbations Journal of Geophysical Research Inan, U., Haldoupis, C., Amvrosiadi, N., Cotts, B. R., van, d., Velde, O. A. 2010
  • Decameter structure in heater-induced airglow at the High frequency Active Auroral Research Program facility Journal of Geophysical Research Inan, U., Kendall, E., Marshall, R., Parris, R. T., Bhatt, A., Coster, A. 2010
  • Full-wave modeling of “early” VLF perturbations caused by lightning electromagnetic pulses Journal of Geophysical Research Lehtinen, N. G., Marshall, R. A., Inan, U. 2010
  • Sensitive Broadband ELF/VLF Radio Reception With the AWESOME Instrumen IEEE Transactions on Geoscience and Remote Sensing Cohen, M. B., Inan, U., Paschal, E. W. 2010
  • Atmospheric physics: Bolt from the blue (Editor's highlight on 2010-03) Nature Inan, U. 2010
  • Observations of Terrestrial Gamma-Ray Flash Electrons American Institute of Physics Conference Series Carlson, B. E., Lehtinen, N. G., Inan, U. 2010
  • Midnight latitude-altitude distribution of 630 nm airglow in the Asian sector measured with FORMOSAT-2/ISUAL Journal of Geophysical Research Inan, U., Adachi, T., Yamaoka, M., Yamamoto, M., Otsuka, Y., Liu, H. 2010
  • LEAP: Layout Design through Error-Aware Transistor Positioning for Soft-Error Resilient Sequential Cell Design 48TH Annual IEEE International Reliability Physics Symposium (IRPS) Lee, H. K., Lilja, K., Bounasser, M., Relangi, P., Linscott, I. R., Inan, U. S., Mitra, S. IEEE. 2010: 203–212
  • Magnetic Sensor Design for Femtotesla Low-Frequency Signals IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING Harriman, S. K., Paschal, E. W., Inan, U. S. 2010; 48 (1): 396-402
  • Penetration of lightning MF signals to the upper ionosphere over VLF ground-based transmitters JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Parrot, M., Inan, U. S., Lehtinen, N. G., Pincon, J. L. 2009; 114
  • Terrestrial gamma ray flash production by lightning current pulses JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Carlson, B. E., Lehtinen, N. G., Inan, U. S. 2009; 114
  • Observations of Earth space by self-powered stations in Antarctica REVIEW OF SCIENTIFIC INSTRUMENTS Mende, S. B., Rachelson, W., Sterling, R., Frey, H. U., Harris, S. E., McBride, S., Rosenberg, T. J., Detrick, D., Doolittle, J. L., Engebretson, M., Inan, U., LaBelle, J. W., LANZEROTTI, L. J., Weatherwax, A. T. 2009; 80 (12)

    Abstract

    Coupling of the solar wind to the Earth magnetosphere/ionosphere is primarily through the high latitude regions, and there are distinct advantages in making remote sensing observations of these regions with a network of ground-based observatories over other techniques. The Antarctic continent is ideally situated for such a network, especially for optical studies, because the larger offset between geographic and geomagnetic poles in the south enables optical observations at a larger range of magnetic latitudes during the winter darkness. The greatest challenge for such ground-based observations is the generation of power and heat for a sizable ground station that can accommodate an optical imaging instrument. Under the sponsorship of the National Science Foundation, we have developed suitable automatic observing platforms, the Automatic Geophysical Observatories (AGOs) for a network of six autonomous stations on the Antarctic plateau. Each station housed a suite of science instruments including a dual wavelength intensified all-sky camera that records the auroral activity, an imaging riometer, fluxgate and search-coil magnetometers, and ELF/VLF and LM/MF/HF receivers. Originally these stations were powered by propane fuelled thermoelectric generators with the fuel delivered to the site each Antarctic summer. A by-product of this power generation was a large amount of useful heat, which was applied to maintain the operating temperature of the electronics in the stations. Although a reasonable degree of reliability was achieved with these stations, the high cost of the fuel air lift and some remaining technical issues necessitated the development of a different type of power unit. In the second phase of the project we have developed a power generation system using renewable energy that can operate automatically in the Antarctic winter. The most reliable power system consists of a type of wind turbine using a simple permanent magnet rotor and a new type of power control system with variable resistor shunts to regulate the power and dissipate the excess energy and at the same time provide heat for a temperature controlled environment for the instrument electronics and data system. We deployed such systems and demonstrated a high degree of reliability in several years of operation in spite of the relative unpredictability of the Antarctic environment. Sample data are shown to demonstrate that the AGOs provide key measurements, which would be impossible without the special technology developed for this type of observing platform.

    View details for DOI 10.1063/1.3262506

    View details for Web of Science ID 000273217300035

    View details for PubMedID 20059157

  • Seasonal dependence of energetic electron precipitation: Evidence for a global role of lightning GEOPHYSICAL RESEARCH LETTERS Gemelos, E. S., Inan, U. S., Walt, M., Parrot, M., Sauvaud, J. A. 2009; 36
  • On remote sensing of transient luminous events' parent lightning discharges by ELF/VLF wave measurements on board a satellite JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Lefeuvre, F., Marshall, R., Pincon, J. L., Inan, U. S., Lagoutte, D., Parrot, M., Berthelier, J. J. 2009; 114
  • Effect of frequency modulation on whistler mode waves in the magnetosphere JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Streltsov, A. V., Golkowski, M., Inan, U. S., Papadopoulos, K. D. 2009; 114
  • Cross modulation of whistler mode and HF waves above the HAARP ionospheric heater GEOPHYSICAL RESEARCH LETTERS Golkowski, M., Inan, U. S., Cohen, M. B. 2009; 36
  • Relationship between electrojet current strength and ELF signal intensity in modulated heating experiments JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Jin, G., Spasojevic, M., Inan, U. S. 2009; 114
  • High-Frame-Rate Reconstruction of a Dynamic 2-D Scene From Continuous Orthogonal Projections IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING Newsome, R., Inan, U. 2009; 47 (8): 2646-2657
  • DEMETER observations of transmitter-induced precipitation of inner radiation belt electrons JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Graf, K. L., Inan, U. S., Piddyachiy, D., Kulkarni, P., Parrot, M., Sauvaud, J. A. 2009; 114
  • Modeling of Doppler-shifted terrestrial VLF transmitter signals observed by DEMETER GEOPHYSICAL RESEARCH LETTERS Starks, M. J., Bell, T. F., Quinn, R. A., Inan, U. S., Piddyachiy, D., Parrot, M. 2009; 36
  • Source regions of banded chorus GEOPHYSICAL RESEARCH LETTERS Bell, T. F., Inan, U. S., Haque, N., Pickett, J. S. 2009; 36
  • Diurnal dependence of ELF/VLF hiss and its relation to chorus at L=2.4 JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Golden, D. I., Spasojevic, M., Inan, U. S. 2009; 114
  • Very Low Frequency Remote Sensing Measurements of the Lower Ionosphere at Site of the United Arab Emirates European General Assembly on International Heliophysics Year Al-Naimiy, H. M., Al-Douri, A. A., Alnajjar, A. A., Inan, U. SPRINGER. 2009: 189–93
  • Propagation of unducted whistlers from their source lightning: A case study JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Santolik, O., Parrot, M., Inan, U. S., Buresova, D., Gurnett, D. A., Chum, J. 2009; 114
  • Reply to comment by R. C. Moore and M. T. Rietveld on "Geometric modulation: A more effective method of steerable ELF/VLF wave generation with continuous HF heating of the lower ionosphere'' GEOPHYSICAL RESEARCH LETTERS Cohen, M. B., Inan, U. S., Golkowski, M. A. 2009; 36
  • Full-wave modeling of transionospheric propagation of VLF waves GEOPHYSICAL RESEARCH LETTERS Lehtinen, N. G., Inan, U. S. 2009; 36
  • PENGUIn multi-instrument observations of dayside high-latitude injections during the 23 March 2007 substorm JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Lessard, M. R., Weatherwax, A. T., Spasojevic, M., Inan, U. S., Gerrard, A., Lanzerotti, L., Ridley, A., Engebretson, M. J., PETIT, N. J., Clauer, R., LaBelle, J., Mende, S. B., Frey, H. U., Pilipenko, V. A., Rosenberg, T. J., Detrick, D. 2009; 114
  • Temporal evolution of proton precipitation associated with the plasmaspheric plume Journal of Geophysical Research (Space Physics) Inan, U., Spasojevic, M., Fuselier, A. 2009
  • Observations of Terrestrial Gamma-Ray Flash Electrons Carlson, B. E., Lehtinen, N. G., Inan, U. S., Crosby, N. B., Huang, T. Y., Rycroft, M. J. AMER INST PHYSICS. 2009: 84–91
  • Reply to comment by R. C. Moore and M. T. Rietveld on ``Geometricmodulation: A more effective method of steerable ELF/VLF wave generation with continuous HF heating of the lower ionosphere Geophysical Research Letters Cohen, M. B., Inan, U., Golkowski, M. A. 2009
  • Advances in Plasmaspheric Wave Research with CLUSTER and IMAGE Observations Space Science Reviews Inan, U., Masson, A., Santol\'ık, O., Carpenter, D. L., Darrouzet, F., Décréau, P. M. 2009
  • First observations of X-mode suppression of O-mode HF enhancements at 6300 {\AA} Geophysical Research Letters Inan, U., Gustavsson, B., Newsome, R., Leyser, T. B., Kosch, M. J., Norin, L. 2009
  • Diurnal dependence of ELF/VLF hiss and its relation to chorus at L = 2.4 Journal of Geophysical Research (Space Physics) Golden, D. I., Spasojevic, M., Inan, U. 2009
  • Electric Fields and Magnetic Fields in the Plasmasphere: A Perspective From CLUSTER and IMAGE Space Science Reviews Inan, U., Matsui, H., Foster, J. C., Carpenter, D. L., Dandouras, I., Darrouzet, F. 2009
  • Estimating lightning current moment waveforms from satellite optical measurements Geophysical Research Letters Inan, U., Adachi, T., Cummer, S. A., Li, J., Takahashi, Y., Hsu, R. R. 2009
  • CLUSTER and IMAGE: New Ways to Study the Earth's Plasmasphere Space Science Reviews Inan, U., deKeyser, J., Carpenter, D. L., Darrouzet, F., Gallagher, D. L., Tu, J. 2009
  • Plasmaspheric Density Structures and Dynamics: Properties Observed by the CLUSTER and IMAGE Missions Space Science Reviews Inan, U., Darrouzet, F., Gallagher, D. L., André, N., Carpenter, D. L., Dandouras, I. 2009
  • Distributing space weather monitoring instruments and educational materials worldwide for IHY 2007: The AWESOME and SID project ADVANCES IN SPACE RESEARCH Scherrer, D., Cohen, M., Hoeksema, T., Inan, U., Mitchell, R., Scherrer, P. 2008; 42 (11): 1777-1785
  • HF signatures of powerful lightning recorded on DEMETER JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Parrot, M., Inan, U., Lehtinen, N., Blanc, E., Pincon, J. L. 2008; 113 (A11)
  • A novel technique for remote sensing of thunderstorm electric fields via the Kerr effect and sky polarization GEOPHYSICAL RESEARCH LETTERS Carlson, B. E., Inan, U. S. 2008; 35 (22)
  • Saturation effects in the VLF-triggered emission process JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Gibby, A. R., Inan, U. S., Bell, T. F. 2008; 113 (A11)
  • Early VLF perturbations caused by lightning EMP-driven dissociative attachment GEOPHYSICAL RESEARCH LETTERS Marshall, R. A., Inan, U. S., Chevalier, T. W. 2008; 35 (21)
  • Nonlinear interaction of energetic electrons with large amplitude chorus GEOPHYSICAL RESEARCH LETTERS Bortnik, J., Thorne, R. M., Inan, U. S. 2008; 35 (21)
  • Fast Photometric Imaging Using Orthogonal Linear Arrays IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING Marshall, R., Newsome, R., Inan, U. 2008; 46 (11): 3885-3893
  • V-shaped VLF streaks recorded on DEMETER above powerful thunderstorms JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Parrot, M., Inan, U. S., Lehtinen, N. G. 2008; 113 (A10)
  • DEMETER observations of an intense upgoing column of ELF/VLF radiation excited by the HAARP HF heater JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Piddyachiy, D., Inan, U. S., Bell, T. F., Lehtinen, N. G., Parrot, M. 2008; 113 (A10)
  • Runaway relativistic electron avalanche seeding in the Earth's atmosphere JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Carlson, B. E., Lehtinen, N. G., Inan, U. S. 2008; 113 (A10)
  • Effects of plasma density irregularities on the pitch angle scattering of radiation belt electrons by signals from ground based VLF transmitters GEOPHYSICAL RESEARCH LETTERS Bell, T. F., Inan, U. S., Piddyachiy, D., Kulkarni, P., Parrot, M. 2008; 35 (19)
  • Magnetospheric amplification and emission triggering by ELF/VLF waves injected by the 3.6 MW HAARP ionospheric heater JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Golkowski, M., Inan, U. S., Gibby, A. R., Cohen, M. B. 2008; 113 (A10)
  • Energetic electron precipitation induced by space based VLF transmitters JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Kulkarni, P., Inan, U. S., Bell, T. F. 2008; 113 (A9)
  • Multistation observations of ELF/VLF whistler mode chorus JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Golkowski, M., Inan, U. S. 2008; 113 (A8)
  • Terminal impedance and antenna current distribution of a VLF electric dipole in the inner magnetosphere IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION Chevalier, T. W., Inan, U. S., Bell, T. F. 2008; 56 (8): 2454-2468
  • Precipitation signatures of ground-based VLF transmitters JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Kulkarni, P., Inan, U. S., Bell, T. F., Bortnik, J. 2008; 113 (A7)
  • Geometric modulation: A more effective method of steerable ELF/VLF wave generation with continuous HF heating of the lower ionosphere GEOPHYSICAL RESEARCH LETTERS Cohen, M. B., Inan, U. S., Golkowski, M. A. 2008; 35 (12)
  • Radiation of ELF/VLF waves by harmonically varying currents into a stratified ionosphere with application to radiation by a modulated electrojet JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Lehtinen, N. G., Inan, U. S. 2008; 113 (A6)
  • Orientation of the HAARP ELF ionospheric dipole and the auroral electrojet GEOPHYSICAL RESEARCH LETTERS Cohen, M. B., Golkowski, M., Inan, U. S. 2008; 35 (2)
  • Observations of artificial and natural optical emissions at the HAARP facility Annales Geophysicae Inan, U., Pedersen, T., Esposito, R., Kendall, E., Sentman, D., Kosch, M. 2008
  • Nonlinear interaction of energetic electrons with large amplitudechorus Geophysical Research Letters Bortnik, J., Thorne, R. M., Inan, U. 2008
  • Highlights Of RPI Sounding Of The Plasmasphere And Polar Regions At Frequencies In The Whistler And Z-Mode Domains Radio Sounding and Plasma Physics Inan, U., Carpenter, D. L. 2008
  • Production altitude and time delays of the terrestrial gamma flashes: Revisiting the Burst and Transient Source Experiment spectra Journal of Geophysical Research (Space Physics) Inan, U., Ostgaard, N., Gjestland, T., Stadsnes, J., Connell, P. H., Carlson, B. E. 2008
  • A quantitative comparison of lightning-induced electron precipitation and VLF signal perturbations JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Peter, W. B., Inan, U. S. 2007; 112 (A12)
  • HF modulated ionospheric currents GEOPHYSICAL RESEARCH LETTERS Payne, J. A., Inan, U. S., Foust, F. R., Chevalier, T. W., Bell, T. F. 2007; 34 (23)
  • Very low frequency sferic bursts, sprites, and their association with lightning activity JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES Marshall, R. A., Inan, U. S., Lyons, W. A. 2007; 112 (D22)
  • Remote sensing of ionospheric disturbances associated with energetic particle precipitation using the South Pole VLF beacon JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Chevalier, M. W., Peter, W. B., Inan, U. S., Bell, T. F., Spasojevic, M. 2007; 112 (A11)
  • VLF observation of long ionospheric recovery events GEOPHYSICAL RESEARCH LETTERS Cotts, B. R., Inan, U. S. 2007; 34 (14)
  • ELF waves generated by modulated HF heating of the auroral electrojet and observed at a ground distance of similar to 4400 km JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Moore, R. C., Inan, U. S., Bell, T. F., Kennedy, E. J. 2007; 112 (A5)
  • Constraints on terrestrial gamma ray flash production from satellite observation GEOPHYSICAL RESEARCH LETTERS Carlson, B. E., Lehtinen, N. G., Inan, U. S. 2007; 34 (8)
  • Massive disturbance of the daytime lower ionosphere by the giant gamma-ray flare from magnetar SGR 1806-20 GEOPHYSICAL RESEARCH LETTERS Inan, U. S., Lehtinen, N. G., Moore, R. C., Hurley, K., Boggs, S., Smith, D. M., Fishman, G. J. 2007; 34 (8)

    View details for DOI 10.1029/GL0291745

    View details for Web of Science ID 000245951300001

  • Possible persistent ionization caused by giant blue jets GEOPHYSICAL RESEARCH LETTERS Lehtinen, N. G., Inan, U. S. 2007; 34 (8)
  • DEMETER satellite observations of lightning-induced electron precipitation GEOPHYSICAL RESEARCH LETTERS Inan, U. S., Piddyachiy, D., Peter, W. B., Sauvaud, J. A., Parrot, M. 2007; 34 (7)
  • Possible direct cloud-to-ionosphere current evidenced by sprite-initiated secondary TLEs GEOPHYSICAL RESEARCH LETTERS Marshall, R. A., Inan, U. S. 2007; 34 (5)
  • Subionospheric VLF observations of transmitter-induced precipitation of inner radiation belt electrons GEOPHYSICAL RESEARCH LETTERS Inan, U. S., Golkowski, M., Casey, M. K., Moore, R. C., PETER, W., Kulkarni, P., Kossey, P., Kennedy, E., Meth, S., Smit, P. 2007; 34 (2)
  • Finite difference frequency domain (FDFD) modeling of trans-ionospheric propagation of VLF signals over long sub-ionospheric paths IEEE Antennas-and-Propagation-Society International Symposium Inan, U. S., Foust, F., Chevalier, T., Chevalier, M., Bell, T. F. IEEE. 2007: 1863–1866
  • Modeling the electromagnetic ion cyclotron wave-induced formationof detached subauroral proton arcs Journal of Geophysical Research (Space Physics) Inan, U., Jordanova, V. K., Spasojevic, M., Thomsen, M. F. 2007
  • Chung Park, pioneer of magnetosphere ionosphere coupling research Journal of Atmospheric and Solar-Terrestrial Physics Inan, U., Carpenter, D. L. 2007
  • Proton cyclotron echoes and a new resonance observed by the RadioPlasma Imager instrument on the IMAGE satellite Journal of Geophysical Research (Space Physics) Inan, U., Carpenter, D. L., Bell, T. F., Chen, D., Ng, D., Baran, C. 2007
  • Massive disturbance of the daytime lower ionosphere by the giant {$\gamma$}-ray flare from magnetar SGR Geophysical Research Letters Inan, U., Lehtinen, N. G., Moore, R. C., Hurley, K., Boggs, S., Smith, D. M. 2007: 1806-20
  • ELF waves generated by modulated HF heating of the auroral electrojet and observed at a ground distance of \~{}4400 km Journal of Geophysical Research (Space Physics) Moore, R. C., Inan, U., Bell, T. F., Kennedy, E. J. 2007
  • Preface: Global Aspects of Magnetosphere-Ionosphere Coupling Journal of Atmospheric and Terrestrial Physics Inan, U., Spasojevic, M., Goldstein, J., Strangeway, J. 2007
  • Terrestrial gamma ray flashes observed aboard the compton gamma ray observatory/burst and transient source experiment and ELF/VLF radio atmospherics JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES Cohen, M. B., Inan, U. S., Fishman, G. 2006; 111 (D24)
  • A TID and SET radiation-hardened, wideband, low-noise amplifier IEEE TRANSACTIONS ON NUCLEAR SCIENCE Mossawir, B., Linscott, I. R., Inan, U. S., Roeder, J. L., Osborn, J. V., Witczak, S. C., King, E. E., LaLumondiere, S. D. 2006; 53 (6): 3439-3448
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  • Characterization of terminal impedance and radiation properties of a horizontal VLF antenna over Antarctic ice RADIO SCIENCE Chevalier, T. W., Inan, U. S., Bell, T. F. 2006; 41 (6)
  • Whistler mode illumination of the plasmaspheric resonant cavity via in situ injection of ELF/VLF waves JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Kulkarni, P., Inan, U. S., Bell, T. F. 2006; 111 (A10)
  • On the association of early/fast very low frequency perturbations with sprites and rare examples of VLF backscatter JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES Marshall, R. A., Inan, U. S., Lyons, W. A. 2006; 111 (D19)
  • High-speed measurements of small-scale features in sprites: Sizes and lifetimes RADIO SCIENCE Marshall, R. A., Inan, U. S. 2006; 41 (6)
  • Rapidly moving sources of upper band ELF/VLF chorus near the magnetic equator JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Platino, M., Inan, U. S., Bell, T. F., Pickett, J. S., Canu, P. 2006; 111 (A9)
  • Terrestrial gamma ray flashes and lightning discharges GEOPHYSICAL RESEARCH LETTERS Inan, U. S., Cohen, M. B., Said, R. K., Smith, D. M., Lopez, L. I. 2006; 33 (18)
  • DEMETER observations of ELF waves injected with the HAARP HF transmitter GEOPHYSICAL RESEARCH LETTERS Platino, M., Inan, U. S., Bell, T. F., Parrot, M., Kennedy, E. J. 2006; 33 (16)
  • Observations of the relationship between sprite morphology and in-cloud lightning processes JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES van der Velde, O. A., Mika, A., Soula, S., Haldoupis, C., Neubert, T., Inan, U. S. 2006; 111 (D15)
  • A PML utilizing k-vector information as applied to the whistler mode in a magnetized plasma IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION Chevalier, M. W., Chevalier, T. W., Inan, U. S. 2006; 54 (8): 2424-2429
  • Observations of amplitude saturation in ELF/VLF wave generation by modulated HF heating of the auroral electrojet GEOPHYSICAL RESEARCH LETTERS Moore, R. C., Inan, U. S., Bell, T. F. 2006; 33 (12)
  • Current distribution of a VLF electric dipole antenna in the plasmasphere RADIO SCIENCE Bell, T. F., Inan, U. S., Chevalier, T. 2006; 41 (2)
  • Perturbations of midlatitude subionospheric VLF signals associated with lower ionospheric disturbances during major geomagnetic storms JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Peter, W. B., Chevalier, M. W., Inan, U. S. 2006; 111 (A3)
  • Temporal signatures of radiation belt electron precipitation induced by lightning-generated MR whistler waves: 2. Global signatures JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Bortnik, J., Inan, U. S., Bell, T. F. 2006; 111 (A2)
  • Temporal signatures of radiation belt electron precipitation induced by lightning-generated MR whistler waves: 1. Methodology JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Bortnik, J., Inan, U. S., Bell, T. F. 2006; 111 (A2)
  • Landau damping and resultant unidirectional propagation of chorus waves GEOPHYSICAL RESEARCH LETTERS Bortnik, J., Inan, U. S., Bell, T. F. 2006; 33 (3)
  • A technique for efficiently modeling long-path propagation for use in both FDFD and FDTD IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS Chevalier, M. W., Inan, U. S. 2006; 5: 525-528
  • On the association of early/fast very low frequency perturbationswith sprites and rare examples of VLF backscatter Journal of Geophysical Research (Atmospheres) Marshall, R. A., Inan, U., Lyons, A. 2006
  • High-speed measurements of small-scale features in sprites: Sizesand lifetimes Radio Science Marshall, R. A., Inan, U. 2006
  • ``Early/slow'' events: A new category of VLF perturbations observed in relation with sprites Journal of Geophysical Research (Space Physics) Haldoupis, C., Steiner, R. J., Mika, A., Shalimov, S., Marshall, R. A., Inan, U. 2006
  • Active Wave Experiments in Space Plasmas: The Z Mode Geospace Electromagnetic Waves and Radiation Inan, U., Benson, R. F., Webb, A., Green, J. L., Carpenter, D. L., Sonwalkar, V. S. 2006
  • Landau damping and resultant unidirectional propagation of choruswaves Geophysical Research Letters Bortnik, J., Inan, U., Bell, T. F. 2006
  • Early VLF perturbations observed in association with elves Annales Geophysicae Inan, U., Mika, A., Haldoupis, C., Neubert, T., Su, H. T., Hsu, R. 2006
  • A TID and SEE Radiation-Hardened, Wideband, Low-Noise Amplifier IEEE Transactions on Nuclear Science Mossawir, B., Linscott, I. R., Inan, U., Roeder, J. L., Osborn, J. V., Witczak, S. C. 2006
  • Global Aspects of Magnetosphere-Ionosphere Coupling EOS Transactions Inan, U., Goldstein, J., Spasojevic, M., Fuselier, S. 2006
  • Ground based VLF observations near L=2.5 during the Halloween 2003 storm GEOPHYSICAL RESEARCH LETTERS Spasojevic, M., Inan, U. S. 2005; 32 (21)
  • Subionospheric VLF signatures and their association with sprites observed during EuroSprite 2003 JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS Mika, A., Haldoupis, C., Marshall, R. A., Neubert, T., Inan, U. S. 2005; 67 (16): 1580-1597
  • Production of terrestrial gamma-ray flashes by an electromagnetic pulse from a lightning return stroke GEOPHYSICAL RESEARCH LETTERS Inan, U. S., Lehtinen, N. G. 2005; 32 (19)
  • Wave acceleration of electrons in the Van Allen radiation belts NATURE Horne, R. B., Thorne, R. M., Shprits, Y. Y., Meredith, N. P., Glauert, S. A., SMITH, A. J., Kanekal, S. G., Baker, D. N., Engebretson, M. J., Posch, J. L., Spasojevic, M., Inan, U. S., Pickett, J. S., Decreau, P. M. 2005; 437 (7056): 227-230

    Abstract

    The Van Allen radiation belts are two regions encircling the Earth in which energetic charged particles are trapped inside the Earth's magnetic field. Their properties vary according to solar activity and they represent a hazard to satellites and humans in space. An important challenge has been to explain how the charged particles within these belts are accelerated to very high energies of several million electron volts. Here we show, on the basis of the analysis of a rare event where the outer radiation belt was depleted and then re-formed closer to the Earth, that the long established theory of acceleration by radial diffusion is inadequate; the electrons are accelerated more effectively by electromagnetic waves at frequencies of a few kilohertz. Wave acceleration can increase the electron flux by more than three orders of magnitude over the observed timescale of one to two days, more than sufficient to explain the new radiation belt. Wave acceleration could also be important for Jupiter, Saturn and other astrophysical objects with magnetic fields.

    View details for DOI 10.1038/nature03939

    View details for Web of Science ID 000231696900049

    View details for PubMedID 16148927

  • Electron precipitation events driven by lightning in hurricanes JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Peter, W. B., Inan, U. S. 2005; 110 (A5)
  • Thermohaline circulation at three key sections in the North Atlantic over 1985-2002 GEOPHYSICAL RESEARCH LETTERS Marsh, R., de Cuevas, B. A., Coward, A. C., Bryden, H. L., Alvarez, M. 2005; 32 (10)
  • Co-ordinated observations of transient luminous events during the EuroSprite2003 campaign 1st General Meeting of the European-Geosciences-Union Neubert, T., Allin, T. H., Blanc, E., Farges, T., Haldoupis, C., Mika, A., Soula, S., KNUTSSON, L., van der Velde, O., Marshall, R. A., Inan, U., Satori, G., Bor, J., Hughes, A., Collier, A., Laursen, S., Rasmussen, I. L. PERGAMON-ELSEVIER SCIENCE LTD. 2005: 807–20
  • Streamers and diffuse glow observed in upper atmospheric electrical discharges IEEE TRANSACTIONS ON PLASMA SCIENCE Gerken, E., Inan, U. 2005; 33 (2): 282-283
  • From Alaska to the South Pacific in one hop - Stanford University, radioscience and ocean engineering merge in the Southern Pacific Ocean to study electromagnetic waves SEA TECHNOLOGY Cole, R., Reddell, N., Inan, U. 2005; 46 (4): 27-?
  • Simulation of self-erase discharge waveforms in plasma display panels IEEE TRANSACTIONS ON PLASMA SCIENCE Veronis, G., Inan, U. S. 2005; 33 (2): 516-517
  • Whistlers observed by the Cluster spacecraft outside the plasmasphere JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Platino, M., Inan, U. S., Bell, T. F., Gurnett, D. A., Pickett, J. S., Canu, P., Decreau, P. M. 2005; 110 (A3)
  • High-speed telescopic imaging of sprites GEOPHYSICAL RESEARCH LETTERS Marshall, R. A., Inan, U. S. 2005; 32 (5)
  • Atmospheric science - Gamma rays made on Earth SCIENCE Inan, U. 2005; 307 (5712): 1054-1055

    View details for DOI 10.1126/science.1109392

    View details for Web of Science ID 000227197300030

    View details for PubMedID 15718455

  • Improvement of the efficiency of plasma display panels by combining waveform and cell geometry design IEEE TRANSACTIONS ON PLASMA SCIENCE Veronis, G., Inan, U. S. 2005; 33 (1): 147-156
  • Optical observations geomagnetically conjugate to sprite-producing lightning discharges ANNALES GEOPHYSICAE Marshall, R. A., Inan, U. S., Neubert, T., Hughes, A., Satori, G., Bor, J., Collier, A., Allin, T. H. 2005; 23 (6): 2231-2237
  • Afternoon subauroral proton precipitation resulting from ring current - plasmasphere interaction, Inner Magnetosphere Interactions: New Perspectives from Imaging AGU Geophysical Monograph Inan, U., Spasojevic, M., Thomsen, F., Chi, P. J., Sandel, B. R. 2005
  • Production of terrestrial gamma-ray flashes by an electromagneticpulse from a lightning return stroke Geophysical Research Letters Inan, U., Lehtinen, N. G. 2005
  • Ground based VLF observations near L = 2.5 during the Halloween 2003 storm Geophysical Research Letters Spasojevic, M., Inan, U. 2005
  • Subionospheric VLF signatures and their association with sprites observed during EuroSprite-2003 Journal of Atmospheric and Solar-Terrestrial Physics Mika, A., Haldoupis, C., Marshall, R. A., Neubert, T., Inan, U. 2005
  • Subionospheric VLF measurements of the effects of geomagnetic storms on the mid-latitude D-region Peter, W. B., Chevalier, M. W., Inan, U. 2005
  • Artificial optical emissions at HAARP for pump frequencies near the third and second electron gyro-harmonic Annales Geophysicae Inan, U., Kosch, M. J., Pedersen, T., Hughes, J., Marshall, R. A., Gerken, E. 2005
  • Co-ordinated observations of transient luminous events during theEuroSprite2003 campaign Journal of Atmospheric and Solar-Terrestrial Physics Inan, U., Neubert, T., Allin, H., Blanc, E., Farges, T., Haldoupis, C. 2005
  • Multi-hop whistler-mode ELF/VLF signals and triggered emissions excited by the HAARP HF heater GEOPHYSICAL RESEARCH LETTERS Inan, U. S., Golkowski, M., Carpenter, D. L., Reddell, N., Moore, R. C., Bell, T. F., Paschal, E., Kossey, P., Kennedy, E., Meth, S. Z. 2004; 31 (24)
  • On the occurrence and spatial extent of electron precipitation induced by oblique nonducted whistler waves JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Peter, W. B., Inan, U. S. 2004; 109 (A12)
  • Diagnostics of magnetospheric electron density and irregularities at altitudes < 5000 km using whistler and Z mode echoes from radio sounding on the IMAGE satellite JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Sonwalkar, V. S., Carpenter, D. L., Bell, T. F., Spasojevic, M., Inan, U. S., Li, J., Chen, X., Venkatasubramanian, A., Harikumar, J., Benson, R. F., Taylor, W. W., Reinisch, B. W. 2004; 109 (A11)
  • Localization of individual lightning discharges via directional and temporal triangulation of sferic measurements at two distant sites JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES Wood, T. G., Inan, U. S. 2004; 109 (D21)
  • Subionospheric early VLF signal perturbations observed in one-to-one association with sprites JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Haldoupis, C., Neubert, T., Inan, U. S., Mika, A., Allin, T. H., Marshall, R. A. 2004; 109 (A10)
  • Toward regional-scale modeling using the two-way nested global model TM5: Characterization of transport using SF6 JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES Peters, W., Krol, M. C., Dlugokencky, E. J., Dentener, F. J., Bergamaschi, P., Dutton, G., von Velthoven, P., Miller, J. B., Bruhwiler, L., Tans, P. P. 2004; 109 (D19)
  • A PML using a convolutional curl operator and a numerical reflection coefficient for general linear media IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION Chevalier, M. W., Inan, U. S. 2004; 52 (7): 1647-1657
  • Latitudinal and seasonal variations of quasiperiodic and periodic VLF emissions in the outer magnetosphere JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Engebretson, M. J., Posch, J. L., Halford, A. J., Shelburne, G. A., Smith, A. J., Spasojevic, M., Inan, U. S., Arnoldy, R. L. 2004; 109 (A5)
  • Cluster measurements of rapidly moving sources of ELF/VLF chorus JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Inan, U. S., Platino, M., Bell, T. F., Gurnett, D. A., Pickett, J. S. 2004; 109 (A5)
  • CLUSTER observations of lower hybrid waves excited at high altitudes by electromagnetic whistler mode signals from the HAARP facility GEOPHYSICAL RESEARCH LETTERS Bell, T. F., Inan, U. S., Platino, M., Pickett, J. S., Kossey, P. A., Kennedy, E. J. 2004; 31 (6)
  • The link between a detached subauroral proton arc and a plasmaspheric plume GEOPHYSICAL RESEARCH LETTERS Spasojevic, M., Frey, H. U., Thomsen, M. F., Fuselier, S. A., Gary, S. P., Sandel, B. R., Inan, U. S. 2004; 31 (4)
  • Comparison of photometric measurements and charge moment estimations in two sprite-producing storms GEOPHYSICAL RESEARCH LETTERS Gerken, E. A., Inan, U. S. 2004; 31 (3)
  • Cluster observations of mid-latitude hiss near the plasmapause Meeting on Spatio-Temporal Analysis and Multipoint Measurements in Space Masson, A., Inan, U. S., Laakso, H., Santolik, O., Decreau, P. COPERNICUS GESELLSCHAFT MBH. 2004: 2565–75
  • Proton precipitation during magnetic storms in August through November 1998 Journal of Geophysical Research (Space Physics) Inan, U., Walt, M., Voss, D. 2004
  • Remote sensing the Earth's plasmasphere Radio Science Bulletin Inan, U., Carpenter, D. L. 2004
  • The Plasmasphere Boundary Layer Annales Geophysicae Inan, U., Carpenter, D., Lemaire, J. 2004
  • Diagnostics of magnetospheric electron density and irregularitiesat altitudes <5000 km using whistler and Z mode echoes from radio sounding on the IMAGE satellite Journal of Geophysical Research (Space Physics) Sonwalkar, V. S., Carpenter, D. L., Bell, T. F., Spasojevic, M., Inan, U., Li, J. 2004
  • Simultaneous remote sensing and in situ observations of plasmaspheric drainage plumes Journal of Geophysical Research (Space Physics) Inan, U., Goldstein, J., Sandel, R., Thomsen, F., Spasojevic, M., Reiff, P. H. 2004
  • Cluster observations of ELF/VLF signals generated by modulated heating of the lower ionosphere with the HAARP HF transmitter Meeting on Spatio-Temporal Analysis and Multipoint Measurements in Space Platino, M., Inan, U. S., Bell, T. F., Pickett, J., Kennedy, E. J., Trotignon, J. G., Rauch, J. L., Canu, P. COPERNICUS GESELLSCHAFT MBH. 2004: 2643–53
  • Z-mode sounding within propagation "cavities" and other inner magnetospheric regions by the RPI instrument on the IMAGE satellite JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Carpenter, D. L., Bell, T. F., Inan, U. S., Benson, R. F., Sonwalkar, V. S., Reinisch, B. W., Gallagher, D. L. 2003; 108 (A12)
  • Early/fast VLF events produced by electron density changes associated with sprite halos JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Moore, R. C., Barrington-Leigh, C. P., Inan, U. S., Bell, T. F. 2003; 108 (A10)
  • Global response of the plasmasphere to a geomagnetic disturbance JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Spasojevic, M., Goldstein, J., Carpenter, D. L., Inan, U. S., Sandel, B. R., Moldwin, M. B., Reinisch, B. W. 2003; 108 (A9)
  • Ionospheric D region electron density profiles derived from the measured interference pattern of VLF waveguide modes RADIO SCIENCE Bainbridge, G., Inan, U. S. 2003; 38 (4)
  • Energy distribution and lifetime of magnetospherically reflecting whistlers in the plasmasphere JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Bortnik, J., Inan, U. S., Bell, T. F. 2003; 108 (A5)
  • Controlled precipitation of radiation belt electrons JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Inan, U. S., Bell, T. F., Bortnik, J., Albert, J. M. 2003; 108 (A5)
  • Observations of decameter-scale morphologies in sprites Conference on Sprites, Elves and Their Global Activities Gerken, E. A., Inan, U. S. PERGAMON-ELSEVIER SCIENCE LTD. 2003: 567–72
  • Frequency-time spectra of magnetospherically reflecting whistlers in the plasmasphere JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Bortnik, J., Inan, U. S., Bell, T. F. 2003; 108 (A1)
  • Magnetic zenith enhancement of HF radio-induced airglow production at HAARP Geophysical Research Letters Inan, U., Pedersen, T. R., McCarrick, M., Gerken, E. A., Selcher, C., Sentman, D. 2003
  • In situ and ground-based intercalibration measurements of plasma d ensity at L = 2.5 Journal of Geophysical Research (Space Physics) Inan, U., Clilverd, M. A., Menk, W., Milinevski, G., Sandel, B. R., Goldstein, J. 2003
  • Guided echoes in the magnetosphere: Observations by Radio Plasma Imager on IMAGE Geophysical Research Letters Inan, U., Fung, S. F., Benson, F., Carpenter, D. L., Green, J. L., Jayanti, V. 2003
  • Z-mode sounding within propagation ``cavities'' and other inner magnetospheric regions by the RPI instrument on the IMAGE satellite Journal of Geophysical Research (Space Physics) Carpenter, D. L., Bell, T. F., Inan, U., Benson, F., Sonwalkar, V. s., Reinisch, B. W. 2003
  • Identifying the plasmapause in IMAGE EUV data using IMAGE RPI in situ steep density gradients Journal of Geophysical Research (Space Physics) Inan, U., Goldstein, J., Spasojevic, M., Reiff, H., Sandel, B. R., Forrester, W. T. 2003
  • The causes of long-term change in the aa index JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Clilverd, M. A., Clark, T. D., Clarke, E., Rishbeth, H., Ulich, T. 2002; 107 (A12)
  • Source characteristics of ELF/VLF chorus JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Lauben, D. S., Inan, U. S., Bell, T. F., Gurnett, D. A. 2002; 107 (A12)
  • Lightning effects at high altitudes: sprites, elves, and terrestrial gamma ray flashes Meeting on the Physics of Thundercloud and Lightning Discharge Inan, U. S. ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER. 2002: 1411–21
  • Cell geometry designs for efficient plasma display panels JOURNAL OF APPLIED PHYSICS Veronis, G., Inan, U. S. 2002; 92 (9): 4897-4905

    View details for DOI 10.1063/1.1511272

    View details for Web of Science ID 000178767200008

  • A survey of streamer and diffuse glow dynamics observed in sprites using telescopic imagery JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Gerken, E. A., Inan, U. S. 2002; 107 (A11)
  • Long-range tracking of thunderstorms using sferic measurements JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES Wood, T. G., Inan, U. S. 2002; 107 (D21)
  • Small-scale field-aligned plasmaspheric density structures inferred from the Radio Plasma Imager on IMAGE JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Carpenter, D. L., Spasojevic, M. A., Bell, T. F., Inan, U. S., Reinisch, B. W., Galkin, I. A., Benson, R. F., Green, J. L., Fung, S. F., Boardsen, S. A. 2002; 107 (A9)
  • Determining the size of lightning-induced electron precipitation patches JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Clilverd, M. A., Nunn, D., Lev-Tov, S. J., Inan, U. S., Dowden, R. L., Rodger, C. J., Smith, A. J. 2002; 107 (A8)
  • L dependence of energetic electron precipitation driven by magnetospherically reflecting whistler waves JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Bortnik, J., Inan, U. S., Bell, T. F. 2002; 107 (A8)
  • The Landau damping of magnetospherically reflected whistlers within the plasmasphere GEOPHYSICAL RESEARCH LETTERS Bell, T. F., Inan, U. S., Bortnik, J., Scudder, J. D. 2002; 29 (15)
  • A first approach to model the low-frequency wave activity in the plasmasphere ANNALES GEOPHYSICAE Andre, R., Lefeuvre, F., Simonet, F., Inan, U. S. 2002; 20 (7): 981-996
  • Simulation studies of the coplanar electrode and other plasma display panel cell designs JOURNAL OF APPLIED PHYSICS Veronis, G., Inan, U. S. 2002; 91 (12): 9502-9512

    View details for DOI 10.1063/1.1478143

    View details for Web of Science ID 000175905200008

  • Exponential relaxation of optical emissions in sprites JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Barrington-Leigh, C. P., Pasko, V. P., Inan, U. S. 2002; 107 (A5)
  • Electrical discharge from a thundercloud top to the lower ionosphere NATURE Pasko, V. P., Stanley, M. A., Mathews, J. D., Inan, U. S., Wood, T. G. 2002; 416 (6877): 152-154

    Abstract

    For over a century, numerous undocumented reports have appeared about unusual large-scale luminous phenomena above thunderclouds and, more than 80 years ago, it was suggested that an electrical discharge could bridge the gap between a thundercloud and the upper atmosphere. Since then, two classes of vertically extensive optical flashes above thunderclouds have been identified-sprites and blue jets. Sprites initiate near the base of the ionosphere, develop very rapidly downwards at speeds which can exceed 107 m s-1 (ref. 15), and assume many different geometrical forms. In contrast, blue jets develop upwards from cloud tops at speeds of the order of 105 m s-1 and are characterized by a blue conical shape. But no experimental data related to sprites or blue jets have been reported which conclusively indicate that they establish a direct path of electrical contact between a thundercloud and the lower ionosphere. Here we report a video recording of a blue jet propagating upwards from a thundercloud to an altitude of about 70 km, taken at the Arecibo Observatory, Puerto Rico. Above an altitude of 42 km-normally the upper limit for blue jets and the lower terminal altitude for sprites-the flash exhibited some features normally observed in sprites. As we observed this phenomenon above a relatively small thunderstorm cell, we speculate that it may be common and therefore represent an unaccounted for component of the global electric circuit.

    View details for Web of Science ID 000174348100030

    View details for PubMedID 11894087

  • Electron precipitation coincident with ELF/VLF wave bursts Journal of Geophysical Research (Space Physics) Inan, U., Walt, M., Voss, D., Pickett, S. 2002
  • Lightning effects at high altitudes: sprites, elves, and terrestrial gamma ray flashes Applied Physics Inan, U. 2002
  • Observations of magnetospheric plasmas by the radio plasma imager (RPI) on the image mission Advances in Space Research Inan, U., Fung, S. F., Benson, F., Green, J. L., Reinisch, B. W., Haines, D. M. 2002
  • Fine Structure of Sprites and Proposed Global Observations Space Weather Study Using Multipoint Techniques Mende, S. B., Frey, H. U., Rairden, L., Su, H. T., Hsu, R. R., Allin, T., Inan, U. S. 2002
  • Precipitation of radiation belt electrons induced by obliquely propagating lightning-generated whistlers JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Lauben, D. S., Inan, U. S., Bell, T. F. 2001; 106 (A12): 29745-29770
  • Lightning-induced energetic electron flux enhancements in the drift loss cone JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Blake, J. B., Inan, U. S., Walt, M., Bell, T. F., Bortnik, J., Chenette, D. L., Christian, H. J. 2001; 106 (A12): 29733-29744
  • Effects of thunderstorm-driven runaway electrons in the conjugate hemisphere: Purple sprites, ionization enhancements, and gamma rays JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Lehtinen, N. G., Inan, U. S., Bell, T. F. 2001; 106 (A12): 28841-28856
  • Wave normal and Poynting vector calculations using the Cassini radio and plasma wave instrument JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Hospodarsky, G. B., Averkamp, T. F., Kurth, W. S., Gurnett, D. A., Dougherty, M., Inan, U., Wood, T. 2001; 106 (A12): 30253-30269
  • Mesosphere-troposphere coupling due to sprites GEOPHYSICAL RESEARCH LETTERS Pasko, V. P., Inan, U. S., Bell, T. F. 2001; 28 (19): 3821-3824
  • First results from the Cluster wideband plasma wave investigation ANNALES GEOPHYSICAE Gurnett, D. A., Huff, R. L., Pickett, J. S., Persoon, A. M., Mutel, R. L., Christopher, I. W., Kletzing, C. A., Inan, U. S., Martin, W. L., Bougeret, J. L., Alleyne, H. S., Yearby, K. H. 2001; 19 (10-12): 1259-1272
  • Observations of relativistic electron microbursts in association with VLF chorus JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Lorentzen, K. R., Blake, J. B., Inan, U. S., Bortnik, J. 2001; 106 (A4): 6017-6027
  • Identification of sprites and elves with intensified video and broadband array photometry JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Barrington-Leigh, C. P., Inan, U. S., Stanley, M. 2001; 106 (A2): 1741-1750
  • He-Xe microdischarges: Comparison of simulation results with experimental data APPLIED PHYSICS LETTERS Veronis, G., Inan, U. S., Pasko, V. P. 2001; 78 (1): 25-27
  • Diffusion of 155 to 430 keV protons in the Earth's radiation belt Journal of Geophysical Research Inan, U., Walt, M., Voss, D., Lev-Tov, J., Mobilia, J., Jahn, J. M. 2001
  • The study of bulk plasma motions and associated electric fields in the plasmasphere by means of whistler-mode signals Journal of Atmospheric and Solar-Terrestrial Physics Inan, U., Carpenter, D. L., Smith, J. 2001
  • Lightning-induced energetic electron flux enhancements in the drift loss cone Journal of Geophysical Research Blake, G. B., Inan, U., Walt, M., Bell, T. F., Bortnik, J., Chenette, D. L. 2001
  • Losses of ring current ions by strong pitch angle scattering Geophysical Research Letters Inan, U., Walt, M., Voss, D. 2001
  • First results from the Radio Plasma Imager on IMAGE Geophysical Research Letters Inan, U., Reinisch, B. W., Huang, X., Haines, M., Galkin, I. A., Green, J. L. 2001
  • Multisatellite observations of rapid subauroral ion drifts (SAID) Journal of Geophysical Research Inan, U., Anderson, P. C., Carpenter, D. L., Tsuruda, K., Mukai, T., Rich, F. J. 2001
  • Effects of thunderstorm-driven runaway electrons in the conjugatehemisphere: Purple sprites, ionization enhancements, and gamma rays Journal of Geophysical Research Lehtinen, N. G., Inan, U., Bell, T. F. 2001
  • Whistler-mode wave-injection experiments in the plasmasphere with a radio sounder Journal of Atmospheric and Solar-Terrestrial Physics Inan, U., Sonwalkar, V. S., Chen, X., Harikumar, J., Carpenter, D. L., Bell, T. F. 2001
  • Ionospheric E region remote sensing with ELF radio atmospherics RADIO SCIENCE Cummer, S. A., Inan, U. S. 2000; 35 (6): 1437-1444
  • Telescopic imaging of sprites GEOPHYSICAL RESEARCH LETTERS Gerken, E. A., Inan, U. S., Barrington-Leigh, C. P. 2000; 27 (17): 2637-2640
  • Fundamental properties of inert gas mixtures for plasma display panels IEEE TRANSACTIONS ON PLASMA SCIENCE Veronis, G., Inan, U. S., Pasko, V. P. 2000; 28 (4): 1271-1279
  • Sferic clusters associated with early/fast VLF events GEOPHYSICAL RESEARCH LETTERS Johnson, M. P., Inan, U. S. 2000; 27 (9): 1391-1394
  • Trapped energetic electron curtains produced by thunderstorm driven relativistic runaway electrons GEOPHYSICAL RESEARCH LETTERS Lehtinen, N. G., Inan, U. S., Bell, T. F. 2000; 27 (8): 1095-1098
  • Modeling ELF radio atmospheric propagation and extracting lightning currents from ELF observations RADIO SCIENCE Cummer, S. A., Inan, U. S. 2000; 35 (2): 385-394
  • Solar wind control of polar chorus GEOPHYSICAL RESEARCH LETTERS Salvati, M. A., Inan, U. S., Rosenberg, T. J., Weatherwax, A. T. 2000; 27 (5): 649-652
  • Fractal structure of sprites GEOPHYSICAL RESEARCH LETTERS Pasko, V. P., Inan, U. S., Bell, T. F. 2000; 27 (4): 497-500
  • Simultaneous triggered VLF emissions and energetic electron distributions observed on POLAR with PWI and HYDRA GEOPHYSICAL RESEARCH LETTERS Bell, T. F., Inan, U. S., Helliwell, R. A., Scudder, J. D. 2000; 27 (2): 165-168
  • Feasibility of a multisatellite investigation of the Earth's magnetosphere with radio tomography JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Ergun, R. E., Larson, D. E., Phan, T., Taylor, D., Bale, S., Carlson, C. W., Roth, I., Angelopoulos, V., Bell, T., Inan, U. S., Bougeret, J. L., Manning, R. 2000; 105 (A1): 361-373
  • Triggering of whistler mode emissions by the band-limited impulse(BLI) associated with amplified Vlf signals from Siple Station, Antarctica Geophysical Research Letters Inan, U., Helliwell, R. A. 2000
  • CRRES observations of density cavities inside the plasmasphere Journal of Geophysical Research Inan, U., Carpenter, D. L., Anderson, R., Calvert, W., Moldwin, M. 2000
  • The Radio Plasma Imager investigation on the IMAGE spacecraft Space Science Reviews Inan, U., Reinisch, B. W., Haines, M., Bibl, K., Cheney, G., Galkin, I. A. 2000
  • Radio plasma imager simulations and measurements Space Science Reviews Inan, U., Green, J. L., Benson, F., Fung, F., Taylor W, W. L., Boardsen, S. A. 2000
  • Investigations of irregularities in remote plasma regions by radio sounding: applications of the radio plasma imager on image Space Science Reviews Inan, U., Fung, S. F., Benson, F., Carpenter, D. L., Reinisch, B. W., Gallagher, D. L. 2000
  • Recovery signatures and occurrence properties of lightning-associated subionospheric VLF perturbations JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Sampath, H. T., Inan, U. S., Johnson, M. P. 2000; 105 (A1): 183-191
  • Sprites triggered by negative lightning discharges GEOPHYSICAL RESEARCH LETTERS Barrington-Leigh, C. P., Inan, U. S., Stanley, M., Cummer, S. A. 1999; 26 (24): 3605-3608
  • Ionospheric effects of relativistic electron enhancement events GEOPHYSICAL RESEARCH LETTERS Demirkol, M. K., Inan, U. S., Bell, T. F., Kanekal, S. G., Wilkinson, D. C. 1999; 26 (23): 3557-3560
  • Subionospheric VLF signatures of oblique (nonducted) whistler-induced precipitation GEOPHYSICAL RESEARCH LETTERS Johnson, M. P., Inan, U. S., Lauben, D. S. 1999; 26 (23): 3569-3572
  • Ionization of the lower ionosphere by gamma-rays from a magnetar: Detection of a low energy (3-10 keV) component GEOPHYSICAL RESEARCH LETTERS Inan, U. S., Lehtinen, N. G., Lev-Tov, S. J., Johnson, M. P., Bell, T. F., Hurley, K. 1999; 26 (22): 3357-3360
  • Monte Carlo simulation of runaway MeV electron breakdown with application to red sprites and terrestrial gamma ray flashes JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Lehtinen, N. G., Bell, T. F., Inan, U. S. 1999; 104 (A11): 24699-24712
  • Poleward-displaced electron precipitation from lightning-generated oblique whistlers GEOPHYSICAL RESEARCH LETTERS Lauben, D. S., Inan, U. S., Bell, T. F. 1999; 26 (16): 2633-2636
  • Scattering pattern of lightning-induced ionospheric disturbances associated with early/fast VLF events GEOPHYSICAL RESEARCH LETTERS Johnson, M. P., Inan, U. S., Lev-Tov, S. J., Bell, T. F. 1999; 26 (15): 2363-2366
  • Characteristics of mesospheric optical emissions produced by lightning discharges JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Veronis, G., Pasko, V. P., Inan, U. S. 1999; 104 (A6): 12645–56
  • Mesospheric electric field transients due to tropospheric lightning discharges GEOPHYSICAL RESEARCH LETTERS Pasko, V. P., Inan, U. S., Bell, T. F. 1999; 26 (9): 1247–50
  • ELF sferic energy as a proxy indicator for sprite occurrence GEOPHYSICAL RESEARCH LETTERS Reising, S. C., Inan, U. S., Bell, T. F. 1999; 26 (7): 987–90
  • Elves triggered by positive and negative lightning discharges GEOPHYSICAL RESEARCH LETTERS Barrington-Leigh, C. P., Inan, U. S. 1999; 26 (6): 683–86
  • Ionization of the lower ionosphere by {$\gamma$}-rays from a magnetar: Detection of a low energy (3-10 keV) component Geophysical Research Letters Inan, U., Lehtinen, N. G., Lev-Tov, J., Johnson, P., Bell, T. F., Hurley, K. 1999
  • Elves triggered by positive and negative lightning discharges Geophysical Research Letters Barrington-Leigh, C. P., Inan, U. 1999
  • Mesospheric electric field transients due to tropospheric lightning discharges Geophysical Research Letters Pasko, V. P., Inan, U., Bell, T. F. 1999
  • Characteristics of mesospheric optical emissions produced by lighting discharges Journal of Geophysical Research Veronis, G., Pasko, V. P., Inan, U. 1999
  • The correlation of rapid AKR variations with changes in the fluxes of precipitating electrons Advances in Space Research Inan, U., Imhof, W. L., Anderson, R., Chenette, L., Mobilia, J., Petrinec, S. M. 1999
  • ELF sferic energy as a proxy indicator for sprite occurrence Geophysical Research Letters Reising, S. C., Inan, U., Bell, T. F. 1999
  • Midlatitude particle and electric field effects at the onset of the November 1993 geomagnetic storm JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Foster, J. C., Cummer, S., Inan, U. S. 1998; 103 (A11): 26359-26366
  • Ionospheric D region remote sensing using VLF radio atmospherics RADIO SCIENCE Cummer, S. A., Inan, U. S., Bell, T. F. 1998; 33 (6): 1781–92

    View details for DOI 10.1029/98RS02381

    View details for Web of Science ID 000077365500023

  • Periodic and quasiperiodic ELF/VLF emissions observed by an array of Antarctic stations JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Smith, A. J., Engebretson, M. J., Klatt, E. M., Inan, U. S., Arnoldy, R. L., Fukunishi, H. 1998; 103 (A10): 23611–22

    View details for DOI 10.1029/98JA01955

    View details for Web of Science ID 000076262300021

  • Mechanism of ELF radiation from sprites GEOPHYSICAL RESEARCH LETTERS Pasko, V. P., Inan, U. S., Bell, T. F., Reising, S. C. 1998; 25 (18): 3493-3496
  • Low-frequency impulsive auroral hiss observations at high geomagnetic latitudes JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LaBelle, J., Weatherwax, A. T., Perring, J., Walsh, E., Trimpi, M. L., Inan, U. S. 1998; 103 (A9): 20459–68

    View details for DOI 10.1029/98JA01562

    View details for Web of Science ID 000075817300011

  • VLF chorus emissions observed by POLAR during the January 10, 1997, magnetic cloud GEOPHYSICAL RESEARCH LETTERS Lauben, D. S., Inan, U. S., Bell, T. F., Kirchner, D. L., Hospodarsky, G. B., Pickett, J. S. 1998; 25 (15): 2995-2998
  • Spatial structure of sprites GEOPHYSICAL RESEARCH LETTERS Pasko, V. P., Inan, U. S., Bell, T. F. 1998; 25 (12): 2123-2126
  • Satellite observations of lightning-induced electron precipitation JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Voss, H. D., Walt, M., Imhof, W. L., Mobilia, J., Inan, U. S. 1998; 103 (A6): 11725–44

    View details for DOI 10.1029/97JA02878

    View details for Web of Science ID 000073880700015

  • Ionospheric effects due to electrostatic thundercloud fields JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS Pasko, V. P., Inan, U. S., Bell, T. F. 1998; 60 (7-9): 863–70
  • Precipitation of radiation belt electrons by magnetospherically reflected whistlers JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Ristic-Djurovic, J. L., Bell, T. F., Inan, U. S. 1998; 103 (A5): 9249–60

    View details for DOI 10.1029/97JA03724

    View details for Web of Science ID 000073430300015

  • ELF radiation produced by electrical currents in sprites GEOPHYSICAL RESEARCH LETTERS Cummer, S. A., Inan, U. S., Bell, T. F., Barrington-Leigh, C. P. 1998; 25 (8): 1281-1284
  • Intense continuing currents following positive cloud-to-ground lightning associated with red sprites GEOPHYSICAL RESEARCH LETTERS Bell, T. F., Reising, S. C., Inan, U. S. 1998; 25 (8): 1285-1288
  • The correlation of AKR waves with precipitating electrons as determined by plasma wave and x-ray image data from the POLAR spacecraft Geophysical Research Letters Inan, U., Imhof, W. L., Chenette, L., Datlowe, W., Mobilia, J., Walt, M. 1998
  • Precipitation of radiation belt electrons by magnetospherically reflected whistlers Journal of Geophysical Research Ristić-Djurović, J. L., Bell, T. F., Inan, U. 1998
  • Periodic and quasiperiodic ELF/VLF emissions observed by an arrayof Antarctic stations Journal of Geophysical Research Smith, A., Engebretson, M. J., Klatt, M., Inan, U., Arnoldy, R. L., Fukunishi, H. 1998
  • Ionospheric D region remote sensing using VLF radio atmospherics Radio Science Cummer, S. A., Inan, U., Bell, T. F. 1998
  • Low-frequency impulsive auroral hiss observations at high geomagnetic latitudes Journal of Geophysical Research LaBelle, J., Weatherwax, A. T., Perring, J., Walsh, E., Trimpi, M. L., Inan, U. 1998
  • Satellite observations of lightning-induced electron precipitation Journal of Geophysical Research Voss, H. D., Walt, M., Imhof, L., Mobilia, J., Inan, U. 1998
  • Magnetospheric Radio Sounding on the IMAGE Mission Inan, U., Benson, R. F., Green, J. L., Fung, S. F., W, B. W., Calvert 1998
  • Substorm Auroral Expansion to High Latitudes and the Dawn/Dusk Flanks Substorms-4 Inan, U., Doolittle, J. H., Mende, S. B., Frey, U., Rosenberg, T. J., Weatherwax, A. T. 1998
  • Erratum: ``Measurement of charge transfer in sprite-producing lightning using ELF radio atmospherics'' Geophysical Research Letters Cummer, S. A., Inan, U. 1998
  • Ionospheric effects due to electrostatic thundercloud fields Journal of Atmospheric and Solar-Terrestrial Physics Pasko, V. P., Inan, U., Bell, T. F. 1998
  • Time resolved N2 triplet state vibrational populations and emissions associated with red sprites Journal of Atmospheric and Solar-Terrestrial Physics Inan, U., Morrill, J. S., Bucsela, J., Pasko, P., Berg, S. L., Heavner, M. J. 1998
  • Measuring lightning-induced ionospheric effects with incoherent scatter radar or with cross-modulation Journal of Atmospheric and Solar-Terrestrial Physics Inan, U., Showen, R. L., Slingeland, A. 1998
  • A two-dimensional model of runaway electron beams driven by quasi-electrostatic thundercloud fields GEOPHYSICAL RESEARCH LETTERS Lehtinen, N. G., Bell, T. F., Pasko, V. P., Inan, U. S. 1997; 24 (21): 2639–42

    View details for DOI 10.1029/97GL52738

    View details for Web of Science ID A1997YE98500027

  • Infrared glow above thunderstorms? GEOPHYSICAL RESEARCH LETTERS Picard, R. H., Inan, U. S., Pasko, V. P., Winick, Wintersteiner, P. P. 1997; 24 (21): 2635–38

    View details for DOI 10.1029/97GL02753

    View details for Web of Science ID A1997YE98500026

  • Sprites as evidence of vertical gravity wave structures above mesoscale thunderstorms GEOPHYSICAL RESEARCH LETTERS Pasko, V. P., Inan, U. S., Bell, T. F. 1997; 24 (14): 1735-1738
  • Measurement of charge transfer in sprite-producing lightning using ELF radio atmospherics GEOPHYSICAL RESEARCH LETTERS Cummer, S. A., Inan, U. S. 1997; 24 (14): 1731–34

    View details for DOI 10.1029/97GL51791

    View details for Web of Science ID A1997XL83700004

  • Probing properties of the magnetospheric hot plasma distribution by whistler mode wave injection at multiple frequencies: Evidence of spatial as well as temporal wave growth JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Carpenter, D. L., Sonwalkar, V. S., Helliwell, R. A., Walt, M., Inan, U. S., Ikeda, M., CAUDLE, D. L. 1997; 102 (A7): 14355-14362
  • Properties of the magnetospheric hot plasma distribution deduced from whistler mode wave injection at 2400 Hz: Ground-based detection of azimuthal structure in magnetospheric hot plasmas JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Sonwalkar, V. S., Carpenter, D. L., Helliwell, R. A., Walt, M., Inan, U. S., CAUDLE, D. L., Ikeda, M. 1997; 102 (A7): 14363-14380
  • VLF remote sensing of high-energy auroral particle precipitation JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Cummer, S. A., Bell, T. F., Inan, U. S., Chenette, D. L. 1997; 102 (A4): 7477–84

    View details for DOI 10.1029/96JA03721

    View details for Web of Science ID A1997WR36700042

  • Rapid lateral expansion of optical luminosity in lightning-induced ionospheric flashes referred to as 'elves' GEOPHYSICAL RESEARCH LETTERS Inan, U. S., BarringtonLeigh, C., Hansen, S., Glukhov, V. S., Bell, T. F., Rairden, R. 1997; 24 (5): 583–86

    View details for DOI 10.1029/97GL00404

    View details for Web of Science ID A1997WL74200023

  • Sprites produced by quasi-electrostatic heating and ionization in the lower ionosphere JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Pasko, V. P., Inan, U. S., Bell, T. F., Taranenko, Y. N. 1997; 102 (A3): 4529–61

    View details for DOI 10.1029/96JA03528

    View details for Web of Science ID A1997WL46400005

  • An analysis of new and existing FDTD methods for isotropic cold plasma and a method for improving their accuracy IEEE Transactions on Antennas and Propagation Inan, U., Cummer, S. A. 1997
  • Quasiperiodic similar to 5-60 s fluctuations of VLF signals propagating in the Earth-ionosphere waveguide: A result of pulsating auroral particle precipitation? JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Carpenter, D. L., Galand, M., Bell, T. F., Sonwalkar, V. S., Inan, U. S., LaBelle, J., SMITH, A. J., Clark, T. D., Rosenberg, T. J. 1997; 102 (A1): 347-361
  • Sprites produced by quasi-electrostatic heating and ionization inthe lower ionosphere Journal of Geophysical Research Pasko, V. P., Inan, U., Bell, T. F., Taranenko, N. 1997
  • VLF remote sensing of high energy auroral particle precipitation Journal of Geophysical Research Cummer, S. A., Bell, T. F., Inan, U., Chenette, L. 1997
  • Erosion and Recovery of the Plasmasphere in the Plasmapause Region Space Science Reviews Inan, U., Carpenter, D. L., Lemaire, J. 1997
  • Probing properties of the magnetospheric hot plasma distribution by whistler mode wave injection at multiple frequencies: Evidence of spatial as well as temporal wave growth Journal of Geophysical Research Carpenter, D. L., Sonwalkar, V. S., Helliwell, R. A., Walt, M., Inan, U., Ikeda, M. 1997
  • Infrared glow above thunderstorms? Geophysical Research Letters Picard, R. H., Inan, U., Pasko, P., Winick, R., Wintersteiner, P. P. 1997
  • LF and MF observations of the lightning electromagnetic pulse at ionospheric altitudes Geophysical Research Letters Inan, U., Kelley, M. C., Baker, D., Holzworth, H., Argo, P., Cummer, S. A. 1997
  • Rapid lateral expansion of optical luminosity in lightning-induced ionospheric flashes referred to as `elves' Geophysical Research Letters Inan, U., Barrington-Leigh, C. P., Hansen, S., Glukhov, S., Bell, T. F., Rairden, R. 1997
  • From Nuclear Physics to Space Physics by Way of High Altitude Nuclear Tests Discovery of the Magnetosphere Inan, U., Walt, M. 1997
  • Lightning Whistlers Reveal the Plasmapause, an Unexpected Boundary in Space Discovery of the Magnetosphere Inan, U., Carpenter, D. L. 1997
  • Measurement of charge transfer in sprite-producing lightning using ELF radio atmospherics Geophysical Research Letters Cummer, A., Inan, U. 1997
  • Properties of the magnetospheric hot plasma distribution deduced from whistler mode wave injection at 2400 Hz: Ground-based detection of azimuthal structure in magnetospheric hot plasmas Journal of Geophysical Research Sonwalkar, V. S., Carpenter, D. L., Helliwell, R. A., Walt, M., Inan, U., Caudle, D. L. 1997
  • Whistlers, Discovery of the Magnetosphere History of Geophysics Inan, U., Helliwell, R. A. 1997
  • A two-dimensional model of runaway electron beams driven by quasi-electrostatic thundercloud fields Geophysical Research Letters Lehtinen, N. G., Bell, T. F., Pasko, P., Inan, U. 1997
  • Evidence for continuing current in sprite-producing cloud-to-ground lightning GEOPHYSICAL RESEARCH LETTERS Reising, S. C., Inan, U. S., Bell, T. F., Lyons, W. A. 1996; 23 (24): 3639–42

    View details for DOI 10.1029/96GL03480

    View details for Web of Science ID A1996VW85900031

  • VLF signatures of ionospheric disturbances associated with sprites Reply GEOPHYSICAL RESEARCH LETTERS Inan, U. S., Bell, T. F., Pasko, V. P. 1996; 23 (23): 3423-3424
  • gamma-Ray emission produced by a relativistic beam of runaway electrons accelerated by quasi-electrostatic thundercloud fields GEOPHYSICAL RESEARCH LETTERS Lehtinen, N. G., Walt, M., Inan, U. S., Bell, T. F., Pasko, V. P. 1996; 23 (19): 2645–48

    View details for DOI 10.1029/96GL02573

    View details for Web of Science ID A1996VH16900018

  • Particle simulation of the time-dependent interaction with the ionosphere of rapidly varying lightning EMP GEOPHYSICAL RESEARCH LETTERS Glukhov, V. S., Inan, U. S. 1996; 23 (16): 2193-2196
  • Elves: Lightning-induced transient luminous events in the lower ionosphere GEOPHYSICAL RESEARCH LETTERS Fukunishi, H., Takahashi, Y., Kubota, M., Sakanoi, K., Inan, U. S., Lyons, W. A. 1996; 23 (16): 2157-2160
  • Characteristics of localized ionospheric disturbances inferred from VLF measurements at two closely spaced receivers JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LevTov, S. J., Inan, U. S., Smith, A. J., Clilverd, M. A. 1996; 101 (A7): 15737–47

    View details for DOI 10.1029/96JA00980

    View details for Web of Science ID A1996UV41500047

  • Sustained heating of the ionosphere above thunderstorms as evidenced in ''early/fast'' VLF events GEOPHYSICAL RESEARCH LETTERS Inan, U. S., Pasko, V. P., Bell, T. F. 1996; 23 (10): 1067–70

    View details for DOI 10.1029/96GL01360

    View details for Web of Science ID A1996UM11300002

  • On the association of terrestrial gamma-ray bursts with lightning and implications for sprites GEOPHYSICAL RESEARCH LETTERS Inan, U. S., Reising, S. C., Fishman, G. J., Horack, J. M. 1996; 23 (9): 1017–20

    View details for DOI 10.1029/96GL00746

    View details for Web of Science ID A1996UK81400029

  • Sprites as luminous columns of ionization produced by quasi-electrostatic thundercloud fields GEOPHYSICAL RESEARCH LETTERS Pasko, V. P., Inan, U. S., Bell, T. F. 1996; 23 (6): 649–52

    View details for DOI 10.1029/96GL00473

    View details for Web of Science ID A1996UD37900012

  • VLF and LF signatures of mesospheric lower ionospheric response to lightning discharges JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Inan, U. S., Slingeland, A., Pasko, V. P., Rodriguez, J. V. 1996; 101 (A3): 5219–38

    View details for DOI 10.1029/95JA03514

    View details for Web of Science ID A1996TY34900039

  • VLF strip holographic imaging of lightning-associated ionospheric disturbances RADIO SCIENCE Chen, J. T., Inan, U. S., Bell, T. F. 1996; 31 (2): 335–48

    View details for DOI 10.1029/95RS02079

    View details for Web of Science ID A1996UD84900010

  • VLF remote sensing of the auroral electrojet JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Cummer, S. A., Bell, T. F., Inan, U. S., Zanetti, L. J. 1996; 101 (A3): 5381–89

    View details for DOI 10.1029/95JA03409

    View details for Web of Science ID A1996TY34900050

  • Blue jets produced by quasi-electrostatic pre-discharge thundercloud fields GEOPHYSICAL RESEARCH LETTERS Pasko, V. P., Inan, U. S., Bell, T. F. 1996; 23 (3): 301-304
  • Space-time structure of optical flashes and ionization changes produced by lighting-EMP GEOPHYSICAL RESEARCH LETTERS Inan, U. S., Sampson, W. A., TARANENKO, Y. N. 1996; 23 (2): 133-136
  • Evidence for continuing current in sprite-producing cloud-to-ground lightning Geophysical Research Letters Reising, S. C., Inan, U., Bell, T. F., Lyons, A. 1996
  • Frequency variations of quasi-periodic ELF-VLF emissions: A possible new ground-based diagnostic of the outer high-latitude magnetosphere JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Alford, J., Engebretson, M., Arnoldy, R., Inan, U. 1996; 101 (A1): 83–97

    View details for DOI 10.1029/95JA02223

    View details for Web of Science ID A1996TP71000009

  • Trapped electron losses by interactions with coherent VLF waves Walt, M., Inan, U. S., Voss, H. D., Reeves, G. D. AIP PRESS. 1996: 65–70
  • VLF remote sensing of the auroral electrojet Journal of Geophysical Research Cummer, S. A., Bell, T. F., Inan, U., Zanetti, J. 1996
  • Elves: Lightning-induced transient luminous events in the lower ionosphere Geophysical Research Letters Fukunishi, H., Takahashi, Y., Kubota, M., Sakanoi, K., Inan, U., Lyons, W. A. 1996
  • Frequency variations of quasi-periodic ELF-VLF emissions: A possible new ground-based diagnostic of the outer high-latitude magnetosphere Journal of Geophysical Research Alford, J., Engebretson, M. J., Arnoldy, L., Inan, U. 1996
  • Blue jets produced by quasi-electrostatic pre-discharge thundercloud fields Geophysical Research Letters Pasko, V. P., Inan, U., Bell, T. F. 1996
  • VLF and LF signatures of mesospheric/lower ionospheric response to lightning discharges Journal of Geophysical Research Inan, U., Slingeland, A., Pasko, P., Rodriguez, J. V. 1996
  • On the association of terrestrial gamma-ray bursts with lightningand implications for sprites Geophysical Research Letters Inan, U., Reising, S. C., Fishman, J., Horack, M. 1996
  • Sustained heating of the ionosphere above thunderstorms as evidenced in ``early/fast'' VLF events Geophysical Research Letters Inan, U., Pasko, V. P., Bell, T. F. 1996
  • Characteristics of localized ionospheric disturbances inferred from VLF measurements at two closely spaced receivers Journal of Geophysical Research Lev-Tov, S. J., Inan, U., Smith, J., Clilverd, A. 1996
  • Particle simulation of the time-dependent interaction with the ionosphere of rapidly varying lightning EMP Geophysical Research Letters Glukhov, V. S., Inan, U. 1996
  • {$\gamma$}-ray emission produced by a relativistic beam of runaway electrons accelerated by quasi-electrostatic thundercloud fields Geophysical Research Letters Lehtinen, N. G., Walt, M., Inan, U., Bell, T. F., Pasko, V. P. 1996
  • On the accuracy of arrival azimuth determination of sprite-associated lightning flashes by Earth-ionosphere cavity resonances Geophysical Research Letters Inan, U., Füllekrug, M., Reising, S. C., Lyons, A. 1996
  • Whistler mode wave intensities in the radiation belts Inan, U., Helliwell, R. A., Walworth, K. F. 1996
  • Sprites as luminous columns of ionization produced by quasi-electrostatic thundercloud fields Geophysical Research Letters Pasko, V. P., Inan, U., Bell, T. F. 1996
  • VLF strip holographic imaging of lightning-associated ionosphericdisturbances Radio Science Chen, J. T., Inan, U., Bell, T. F. 1996
  • Reply Geophysical Research Letters Inan, U., Bell, T. F., Pasko, P. 1996
  • VLF signatures of ionospheric disturbances associated with sprites GEOPHYSICAL RESEARCH LETTERS Inan, U. S., Bell, T. F., Pasko, V. P., Sentman, D. D., Wescott, E. M., Lyons, W. A. 1995; 22 (24): 3461-3464
  • ALTITUDE PROFILES OF LOCALIZED D-REGION DENSITY DISTURBANCES PRODUCED IN LIGHTNING-INDUCED ELECTRON-PRECIPITATION EVENTS JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LEVTOV, S. J., Inan, U. S., Bell, T. F. 1995; 100 (A11): 21375-21383
  • VLF SIGNATURES OF IONOSPHERIC HEATING BY HIPAS RADIO SCIENCE BELL, T. F., INAN, U. S., DANIELSON, M. T., CUMMER, S. A. 1995; 30 (6): 1855–67

    View details for DOI 10.1029/95RS02191

    View details for Web of Science ID A1995TH03200016

  • RUNAWAY ELECTRONS AS A SOURCE OF RED-SPRITES IN THE MESOSPHERE GEOPHYSICAL RESEARCH LETTERS BELL, T. F., PASKO, V. P., INAN, U. S. 1995; 22 (16): 2127–30

    View details for DOI 10.1029/95GL02239

    View details for Web of Science ID A1995RT33300013

  • FOCUSING OF NONDUCTED WHISTLERS BY THE EQUATORIAL ANOMALY JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS SONWALKAR, V. S., INAN, U. S., AGGSON, T. L., FARRELL, W. M., PFAFF, R. 1995; 100 (A5): 7783–90

    View details for DOI 10.1029/94JA02756

    View details for Web of Science ID A1995QY98100018

  • HEATING, IONIZATION AND UPWARD DISCHARGES IN THE MESOSPHERE DUE TO INTENSE QUASI-ELECTROSTATIC THUNDERCLOUD FIELDS GEOPHYSICAL RESEARCH LETTERS PASKO, V. P., INAN, U. S., TARANENKO, Y. N., BELL, T. F. 1995; 22 (4): 365–68

    View details for DOI 10.1029/95GL00008

    View details for Web of Science ID A1995QJ26500011

  • AN INTERPRETATION OF A MYSTERIOUS 3.0-KHZ TO 4.6-KHZ EMISSION BAND OBSERVED ON VOYAGER-2 NEAR NEPTUNE JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS SONWALKAR, V. S., INAN, U. S., BELL, T. F. 1995; 100 (A2): 1795–1809

    View details for DOI 10.1029/94JA02678

    View details for Web of Science ID A1995QH75100021

  • Focusing of nonducted whistlers by the equatorial anomaly Journal of Geophysical Research Sonwalkar, V. S., Inan, U., Aggson, L., Farrell, M., Pfaff, R. 1995
  • COINCIDENT BURSTS OF AURORAL KILOMETRIC RADIATION AND VLF EMISSIONS ASSOCIATED WITH A TYPE-III SOLAR RADIO NOISE EVENT JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS ROSENBERG, T. J., SINGH, S., WU, C. S., LABELLE, J., TREUMANN, R. A., INAN, U. S., LANZEROTTI, L. J. 1995; 100 (A1): 281–88

    View details for DOI 10.1029/94JA02757

    View details for Web of Science ID A1995QF78300024

  • An interpretation of a mysterious 3.0- to 4.6-kHz emission band observed on Voyager 2 near Neptune Journal of Geophysical Research Sonwalkar, V. S., Inan, U., Bell, T. F. 1995
  • Altitude profiles of localized D region density disturbances produced in lightning-induced electron precipitation events Journal of Geophysical Research Lev-Tov, S. J., Inan, U., Bell, T. F. 1995
  • Notes on the diversity of the properties of radio bursts observed on the nightside of Venus Journal of Atmospheric and Terrestrial Physics Umran, U., Sonwalkar, V. S., Carpenter, D. L. 1995
  • Heating, ionization and upward discharges in the mesosphere due to intense quasi-electrostatic thundercloud fields Geophysical Research Letters Pasko, V. P., Inan, U., Taranenko, N., Bell, T. F. 1995
  • Intensities and polarization rates of whistler mode VLF signals ob served from a ground network near L = 4 Journal of Geophysical Research Inan, U., Ikeda, M., Nagano, I., Shimbo, T., Carpenter, D. L. 1995
  • Earth's plasmasphere awaits rediscovery EOS Transactions Umran, U., Carpenter, D. L. 1995
  • Chapter 13 of Handbook of Atmospheric Electrodynamics Handbook of Atmospheric Electrodynamics Inan, U., Sonwalkar, V. S. 1995
  • Runaway electrons as a source of Red Sprites in the mesosphere Geophysical Research Letters Bell, T. F., Pasko, V. P., Inan, U. 1995
  • The feasibility of radio sounding in the magnetosphere Radio Science Inan, U., Calvert, W., Benson, F., Carpenter, D. L., Fung, S. F., Gallagher, D. L. 1995
  • The role of the Gendrin mode of VLF propagation in the generation of magnetospheric emissions Geophysical Research Letters Inan, U., Helliwell, R. A. 1995
  • VLF signatures of ionospheric heating by HIPAS Radio Science Bell, T. F., Inan, U., Danielson, T., Cummer, S. A. 1995
  • Coincident bursts of auroral kilometric radiation and VLF emissions associted with a type 3 solar radio noise event Journal of Geophysical Research Rosenberg, T. J., Singh, S., Wu, S., LaBelle, J., Treumann, R. A., Inan, U. 1995
  • HEATING OF THE NIGHTTIME D-REGION BY VERY-LOW FREQUENCY TRANSMITTERS JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS RODRIGUEZ, J. V., INAN, U. S., BELL, T. F. 1994; 99 (A12): 23329–38

    View details for DOI 10.1029/94JA02001

    View details for Web of Science ID A1994PV62400009

  • RECOVERY SIGNATURES OF LIGHTNING-ASSOCIATED VLF PERTURBATIONS AS A MEASURE OF THE LOWER IONOSPHERE JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS PASKO, V. P., INAN, U. S. 1994; 99 (A9): 17523–37

    View details for DOI 10.1029/94JA01378

    View details for Web of Science ID A1994PF92500029

  • SIMULTANEOUS OBSERVATIONS OF VLF GROUND TRANSMITTER SIGNALS ON THE DE-1 AND COSMOS-1809 SATELLITES - DETECTION OF A MAGNETOSPHERIC CAUSTIC AND A DUCT JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS SONWALKAR, V. S., INAN, U. S., BELL, T. F., HELLIWELL, R. A., CHMYREV, V. M., SOBOLEV, Y. P., OVCHARENKO, O. Y., SELEGEJ 1994; 99 (A9): 17511–22

    View details for DOI 10.1029/94JA00866

    View details for Web of Science ID A1994PF92500028

  • DE-1 AND COSMOS 1809 OBSERVATIONS OF LOWER-HYBRID WAVES EXCITED BY VLF WHISTLER-MODE WAVES GEOPHYSICAL RESEARCH LETTERS BELL, T. F., INAN, U. S., LAUBEN, D., SONWALKAR, V. S., HELLIWELL, R. A., SOBOLEV, Y. P., CHMYREV, V. M., GONZALEZ, S. 1994; 21 (8): 653–56

    View details for DOI 10.1029/94GL00196

    View details for Web of Science ID A1994NG99300004

  • DE-1 VLF OBSERVATIONS DURING ACTIVITY WAVE INJECTION EXPERIMENTS JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS SONWALKAR, V. S., INAN, U. S., BELL, T. F., HELLIWELL, R. A., MOLCHANOV, O. A., GREEN, J. L. 1994; 99 (A4): 6173–86

    View details for DOI 10.1029/93JA03310

    View details for Web of Science ID A1994NF58000043

  • SOURCE REGIONS OF LONG-PERIOD PULSATION EVENTS IN ELECTRON-PRECIPITATION AND MAGNETIC-FIELDS AT SOUTH-POLE STATION JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS PAQUETTE, J. A., MATTHEWS, D. L., ROSENBERG, T. J., LANZEROTTI, L. J., INAN, U. S. 1994; 99 (A3): 3869–77

    View details for DOI 10.1029/93JA03439

    View details for Web of Science ID A1994MZ63900005

  • ELECTRON-DENSITY CHANGES IN THE NIGHTTIME D-REGION DUE TO HEATING BY VERY-LOW-FREQUENCY TRANSMITTERS GEOPHYSICAL RESEARCH LETTERS Rodriguez, J. V., Inan, U. S. 1994; 21 (2): 93-96
  • Lightning-induced disturbances of the lower ionosphere COSPAR Colloquium on Low-Latitude Ionospheric Physics Inan, U. S. PERGAMON PRESS LTD. 1994: 203–219
  • DE-1 and COSMOS 1809 observations of lower hybrid waves excited by VLF whistler mode waves Geophysical Research Letters Bell, T. F., Inan, U., Lauben, D. S., Sonwalkar, V. S., Helliwell, R. A., Sobolev, Y. P. 1994
  • Anomalous noise from whistlers and radio atmospherics due to quasi-transverse electromagnetic mode propagation of VLF signals in the Earth-ionosphere waveguide Radio Science Inan, U., Mielke, T. A., Mideke, M. 1994
  • Simultaneous observations of VLF ground transmitter signals on the DE 1 and COSMOS 1809 satellites: Detection of a magnetospheric caustic and a duct Journal of Geophysical Research Sonwalkar, V. S., Inan, U., Bell, T. F., Helliwell, R. A., Chmyrev, V. M., Sobolev, Y. P. 1994
  • Heating of the nighttime D region by very low frequency transmitters Journal of Geophysical Research Rodriguez, J. V., Inan, U., Bell, T. F. 1994
  • A study of quasi-periodic ELF-VLF emissions at three Antarctic stations: Evidence for off-equatorial generation? Annales Geophysicae Inan, U., Morrison, K., Engebretson, J., Beck, R., Johnson, J. E., Arnoldy, R. L. 1994
  • Electron density changes in the nighttime D region due to heating by very-low-frequency transmitters Geophysical Research Letters Rodriguez, J. V., Inan, U. 1994
  • Source regions of long-period pulsation events in electron precipitation and magnetic fields at South Pole Station Journal of Geophysical Research Paquette, J. A., Matthews, D. L., Rosenberg, T. J., Lanzerotti, J., Inan, U. 1994
  • The ULF modulation of ELF-VLF emissions close to the magnetospheric boundary Physical Signatures of Magnetospheric Boundary Layer Processes Inan, U., Morrison, K., Engebretson, J., Beck, R., Johnson, J. E., Arnoldy, R. L. 1994
  • Global thunderstorm tracking via measurements of radio atmospherics at Palmer Station Antarctic Journal of the United States Inan, U., Reising, S. C. 1994
  • Initial results from the PENGUIn ELF/VLF receiver at AGO-P2 Antarctic Journal of the United States Inan, U., Brown, A. D., Yarbrough, J. 1994
  • DE 1 VLF observations during Activny wave injection experiments Journal of Geophysical Research Sonwalkar, V. S., Inan, U., Bell, T. F., Helliwell, R. A., Molchanov, O. A., Green, J. L. 1994
  • Recovery signatures of lightning-associated VLF perturbations as a measure of the lower ionosphere Journal of Geophysical Research Pasko, V. P., Inan, U. 1994
  • A programmable and low-power ELF/VLF receiver for automatic geophysical observatories Antarctic Journal of the United States Shafer, D. C., Brown, A. D., Trabucco, W. J., Inan, U. 1994
  • THE INTERACTION WITH THE LOWER IONOSPHERE OF ELECTROMAGNETIC PULSES FROM LIGHTNING - EXCITATION OF OPTICAL-EMISSIONS GEOPHYSICAL RESEARCH LETTERS TARANENKO, Y. N., INAN, U. S., BELL, T. F. 1993; 20 (23): 2675–78

    View details for DOI 10.1029/93GL02838

    View details for Web of Science ID A1993MP20500025

  • VLF SIGNATURES OF LIGHTNING-INDUCED HEATING AND IONIZATION OF THE NIGHTTIME D-REGION GEOPHYSICAL RESEARCH LETTERS Inan, U. S., Rodriguez, J. V., Idone, V. P. 1993; 20 (21): 2355-2358
  • THE HEATING OF SUPRATHERMAL IONS ABOVE THUNDERSTORM CELLS GEOPHYSICAL RESEARCH LETTERS BELL, T. F., HELLIWELL, R. A., INAN, U. S., LAUBEN, D. S. 1993; 20 (18): 1991–94

    View details for DOI 10.1029/93GL02242

    View details for Web of Science ID A1993LX65100026

  • THE ROLE OF DUCTED WHISTLERS IN THE PRECIPITATION LOSS AND EQUILIBRIUM FLUX OF RADIATION BELT ELECTRONS JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS BURGESS, W. C., INAN, U. S. 1993; 98 (A9): 15643–65

    View details for DOI 10.1029/93JA01202

    View details for Web of Science ID A1993LW35300051

  • THE SCATTERING OF VLF WAVES BY LOCALIZED IONOSPHERIC DISTURBANCES PRODUCED BY LIGHTNING-INDUCED ELECTRON-PRECIPITATION JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS POULSEN, W. L., BELL, T. F., INAN, U. S. 1993; 98 (A9): 15553–59

    View details for DOI 10.1029/93JA01201

    View details for Web of Science ID A1993LW35300043

  • INTERACTION WITH THE LOWER IONOSPHERE OF ELECTROMAGNETIC PULSES FROM LIGHTNING - HEATING, ATTACHMENT, AND IONIZATION GEOPHYSICAL RESEARCH LETTERS TARANENKO, Y. N., INAN, U. S., BELL, T. F. 1993; 20 (15): 1539–42

    View details for DOI 10.1029/93GL01696

    View details for Web of Science ID A1993LT38700005

  • WHISTLERS AND PLASMASPHERIC HISS - WAVE DIRECTIONS AND 3-DIMENSIONAL PROPAGATION JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS DRAGANOV, A. B., INAN, U. S., SONWALKAR, V. S., BELL, T. F. 1993; 98 (A7): 11401–10

    View details for DOI 10.1029/93JA00662

    View details for Web of Science ID A1993LL82200023

  • A SEARCH FOR ELF VLF EMISSIONS INDUCED BY EARTHQUAKES AS OBSERVED IN THE IONOSPHERE BY THE DE-2 SATELLITE JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Henderson, T. R., Sonwalkar, V. S., Helliwell, R. A., Inan, U. S., FRASERSMITH, A. C. 1993; 98 (A6): 9503-9514
  • A MULTIPLE-MODE 3-DIMENSIONAL MODEL OF VLF PROPAGATION IN THE EARTH-IONOSPHERE WAVE-GUIDE IN THE PRESENCE OF LOCALIZED D-REGION DISTURBANCES JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS POULSEN, W. L., INAN, U. S., BELL, T. F. 1993; 98 (A2): 1705–17

    View details for DOI 10.1029/92JA01529

    View details for Web of Science ID A1993KK72000041

  • Lightning-induced effects on VLF/LF radio propagation AGARD, ELF/VLF/LF Radio Propagation and Systems Aspects Inan, U. 1993; 10: 93-30727 11-32
  • Whistlers and plasmaspheric hiss - Wave directions and three-dimensional propagation Journal of Geophysical Research Draganov, A. B., Inan, U., Sonwalkar, V. S., Bell, T. F. 1993
  • VLF signatures of lightning-induced heating and ionization of thenighttime D-region Geophysical Research Letters Inan, U., Rodriguez, J. V., Idone, P. 1993
  • The interaction with the lower ionosphere of electromagnetic pulses from lightning: Excitation of optical emissions Geophysical Research Letters Taranenko, Y. N., Inan, U., Bell, T. F. 1993
  • A multiple-mode three-dimensional model of VLF propagation in the earth-ionosphere waveguide in the presence of localized D region disturbances Journal of Geophysical Research Poulsen, W. L., Inan, U., Bell, T. F. 1993
  • Siple Station, Antarctica, experiments on staircase frequency ramps as approximations to continuous ramps Journal of Geophysical Research Inan, U., Mielke, T. A., Helliwell, R. A. 1993
  • A search for ELF/VLF emissions induced by earthquakes as observed in the ionosphere by the DE 2 satellite Journal of Geophysical Research Henderson, T. R., Sonwalkar, V. S., Helliwell, R. A., Inan, U., Fraser-Smith, A. C. 1993
  • Interaction with the lower ionosphere of electromagnetic pulses from lightning - Heating, attachment, and ionization Geophysical Research Letters Taranenko, Y. N., Inan, U., Bell, T. F. 1993
  • The scattering of VLF waves by localized ionospheric disturbances produced by lightning-induced electron precipitation Journal of Geophysical Research Poulsen, W. L., Bell, T. F., Inan, U. 1993
  • The heating of suprathermal ions above thunderstorm cells Geophysical Research Letters Bell, T. F., Helliwell, R. A., Inan, U., Lauben, D. S. 1993
  • The role of ducted whistlers in the precipitation loss and equilibrium flux of radiation belt electrons Journal of Geophysical Research Burgess, W. C., Inan, U. 1993
  • Plasmasphere dynamics in the duskside bulge region: A new look atold topic Journal of Geophysical Research Inan, U., Carpenter, D. L., Giles, L., Chappell, R., Décréau P, M. E., Anderson, R. R. 1993
  • Imagers for the magnetosphere, aurora, and plasmasphere (IMAP) Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series Inan, U., Frank, L. A., Williams, J., Roelof, C. 1993
  • Nonlinear wave-wave interactions in the subauroral ionosphere on the basis of ISIS-2 satellite observations of Siple station VLF signals Geophysical Research Letters Inan, U., Ohnami, S., Hayakawa, M., Bell, T. F., Ondoh, T. 1993
  • RELAXATION OF TRANSIENT LOWER IONOSPHERIC DISTURBANCES CAUSED BY LIGHTNING-WHISTLER-INDUCED ELECTRON-PRECIPITATION BURSTS JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS GLUKHOV, V. S., PASKO, V. P., INAN, U. S. 1992; 97 (A11): 16971–79

    View details for DOI 10.1029/92JA01596

    View details for Web of Science ID A1992JX75300019

  • IONOSPHERIC MODIFICATION WITH A VLF TRANSMITTER GEOPHYSICAL RESEARCH LETTERS Inan, U. S., Rodriguez, J. V., Levtov, S., Oh, J. 1992; 19 (20): 2071-2074
  • D-REGION DISTURBANCES CAUSED BY ELECTROMAGNETIC PULSES FROM LIGHTNING GEOPHYSICAL RESEARCH LETTERS RODRIGUEZ, J. V., INAN, U. S., BELL, T. F. 1992; 19 (20): 2067–70

    View details for DOI 10.1029/92GL02379

    View details for Web of Science ID A1992JW00100019

  • OPTICAL SIGNATURES OF LIGHTNING-INDUCED HEATING OF THE D-REGION GEOPHYSICAL RESEARCH LETTERS TARANENKO, Y. N., INAN, U. S., BELL, T. F. 1992; 19 (18): 1815–18

    View details for DOI 10.1029/92GL02106

    View details for Web of Science ID A1992JP96200004

  • RELATIVISTIC ELECTRON MICROBURSTS JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS IMHOF, W. L., VOSS, H. D., MOBILIA, J., DATLOWE, D. W., GAINES, E. E., MCGLENNON, J. P., INAN, U. S. 1992; 97 (A9): 13829–37

    View details for DOI 10.1029/92JA01138

    View details for Web of Science ID A1992JM02600013

  • PRECIPITATION OF SUPRATHERMAL (100 EV) ELECTRONS BY OBLIQUE WHISTLER WAVES GEOPHYSICAL RESEARCH LETTERS JASNA, D., INAN, U. S., BELL, T. F. 1992; 19 (16): 1639–42

    View details for DOI 10.1029/92GL01811

    View details for Web of Science ID A1992JL39300004

  • WHISTLER-MODE CHORUS AND MORNINGSIDE AURORAE GEOPHYSICAL RESEARCH LETTERS Inan, U. S., Chiu, Y. T., Davidson, G. T. 1992; 19 (7): 653-656
  • MAGNETOSPHERICALLY REFLECTED WHISTLERS AS A SOURCE OF PLASMASPHERIC HISS GEOPHYSICAL RESEARCH LETTERS DRAGANOV, A. B., INAN, U. S., SONWALKAR, V. S., BELL, T. F. 1992; 19 (3): 233–36

    View details for DOI 10.1029/91GL03167

    View details for Web of Science ID A1992HC97900004

  • VLF-HF HEATING OF THE LOWER IONOSPHERE AND ELF WAVE GENERATION GEOPHYSICAL RESEARCH LETTERS TARANENKO, Y. N., INAN, U. S., BELL, T. F. 1992; 19 (1): 61–64

    View details for DOI 10.1029/91GL02771

    View details for Web of Science ID A1992GZ81000016

  • D region disturbances caused by electromagnetic pulses from lightning Geophysical Research Letters Rodriguez, J. V., Inan, U., Bell, T. F. 1992
  • A CASE-STUDY OF LIGHTNING, WHISTLERS, AND ASSOCIATED IONOSPHERIC EFFECTS DURING A SUBSTORM PARTICLE INJECTION EVENT JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS RODRIGUEZ, J. V., INAN, U. S., LI, Y. Q., HOLZWORTH, R. H., SMITH, A. J., ORVILLE, R. E., ROSENBERG, T. J. 1992; 97 (A1): 65–75

    View details for DOI 10.1029/91JA02583

    View details for Web of Science ID A1992GY56800006

  • EXCITATION OF WHISTLER MODE SIGNALS VIA INJECTION OF POLARIZED VLF WAVES WITH THE SIPLE TRANSMITTER RADIO SCIENCE MIELKE, T. A., Elkins, C. J., Helliwell, R. A., Inan, U. S. 1992; 27 (1): 31-46
  • Testing radio bursts observed on the nightside of Venus for evidence of whistler mode propagation from lightning Journal of Geophysical Research Inan, U., Sonwalkar, V. S., Carpenter, D. L., Strangeway, J. 1992
  • Pitch angle scattering of energetic particles by oblique whistler waves Geophysical Research Letters Inan, U., Bell, T. F. 1992
  • Heating and ionization of the lower ionosphere by lightning Geophysical Research Letters Inan, U., Bell, T. F., Rodriguez, J. 1992
  • Lower hybrid waves excited through linear mode coupling and the heating of ions in the auroral and subauroral magnetosphere Journal of Geophysical Research Inan, U., Bell, T. F., Helliwell, J. V., Hudson, K. 1992
  • The Role of the Ionosphere in Coupling Upstream ULF Wave Power into the Dayside Magnetosphere Journal of Geophysical Research Inan, U., Engebretson, M. J., Cahill, L. I., Arnoldy, R. L., Anderson, B. J., Rosenberg, T. J. 1992
  • ULF magnetic signatures at the earth surface due to ground water flow - A possible precursor to earthquakes Geophysical Research Letters Draganov, A. B., Inan, U., Taranenko, N. 1992
  • Magnetospherically reflected whistlers as a source of plasmaspheric hiss Geophysical Research Letters Draganov, A. B., Inan, U., Sonwalkar, V. S., Bell, T. F. 1992
  • Optical signatures of lightning-induced heating of the D region Geophysical Research Letters Taranenko, Y. N., Inan, U., Bell, T. F. 1992
  • DE-1 observations of lower hybrid waves excited by VLF whistler mode waves Geophysical Research Letters Bell, T. F., Inan, U., Sonwalkar, V. S., Helliwell, R. A. 1992
  • A case study of lightning, whistlers, and associated ionospheric effects during a substorm particle injection event Journal of Geophysical Research Rodriguez, J. V., Inan, U., Li, Q., Holzworth, H., Smith, A. J., Orville, R. E. 1992
  • Three-wave envelope solitons: Can the speed of light in the fiber be controlled? Unknown Inan, U., Taranenko, Y. N., Kazovsky, G. 1992
  • VLF-HF heating of the lower ionosphere and ELF wave generation Geophysical Research Letters Taranenko, Y. N., Inan, U., Bell, T. F. 1992
  • A case study of plasma structure in the dusk sector associated with enhanced magnetospheric convection Journal of Geophysical Research Inan, U., Carpenter, D. L., Smith, J., Giles, L., Chappell, C. R., Décréau P, M. E. 1992
  • Excitation of whistler mode signals via injection of polarized VLF waves with the Siple transmitter Radio Science Mielke, T. A., Elkins, J. C., Helliwell, R. A., Inan, U. 1992
  • Precipitation of suprathermal (100 eV) electrons by oblique whistler waves Geophysical Research Letters Jasna, D., Inan, U., Bell, T. F. 1992
  • An experiment on the threshold effect in the coherent wave instability Geophysical Research Letters Inan, U., Mielke, T. A., Helliwell, R. A. 1992
  • Relaxation of transient lower ionospheric disturbances caused by lightning-whistler-induced electron precipitation bursts Journal of Geophysical Research Glukhov, V. S., Pasko, V. P., Inan, U. 1992
  • Whistler-mode chorus and morningside aurorae Geophysical Research Letters Inan, U., Chiu, T. Y., Davidson, T. 1992
  • On the spatial relationship between lightning discharges and propagation paths of perturbed subionospheric VLF/LF signals Journal of Geophysical Research Yip, W. Y., Inan, U., Orville, E. 1992
  • An ISEE/Whistler model of equatorial electron density in the magnetosphere Journal of Geophysical Research Carpenter, D. L., Anderson, R. R. 1992
  • The longitudinal dependence of whistler and chorus characteristics observed on the ground near L = 4 Journal of Geophysical Research Inan, U., Smith, A. J., Carpenter, D. L., Corcuff, Y., Rash J, P. S., Bering, E. A. 1992
  • Relativistic electron microbursts Journal of Geophysical Research Imhof, W. L., D, V. H., Mobilia, J., Datlowe, W., Gaines, E. E., McGlennon, J. P., Inan, U. S. 1992
  • The propagation of mixed polarization VLF (f = 5 kHz or less) radio waves in the Antarctic earth-ionosphere waveguide Radio Science Inan, U., Cotton, P. D., Smith, J., Wolf, G., Poulsen, W. L., Carpenter, D. L. 1992
  • ULF MAGNETIC SIGNATURES AT THE EARTH SURFACE DUE TO GROUND-WATER FLOW - A POSSIBLE PRECURSOR TO EARTHQUAKES GEOPHYSICAL RESEARCH LETTERS DRAGANOV, A. B., INAN, U. S., TARANENKO, Y. N. 1991; 18 (6): 1127–30

    View details for DOI 10.1029/91GL01000

    View details for Web of Science ID A1991FR19000036

  • HEATING AND IONIZATION OF THE LOWER IONOSPHERE BY LIGHTNING GEOPHYSICAL RESEARCH LETTERS Inan, U. S., Bell, T. F., Rodriguez, J. V. 1991; 18 (4): 705-708
  • DE-1 OBSERVATIONS OF LOWER HYBRID WAVES EXCITED BY VLF WHISTLER MODE WAVES GEOPHYSICAL RESEARCH LETTERS BELL, T. F., INAN, U. S., SONWALKAR, V. S., HELLIWELL, R. A. 1991; 18 (3): 393–96

    View details for DOI 10.1029/90GL02598

    View details for Web of Science ID A1991FC74800010

  • ANOMALOUS OPTICAL EVENTS DETECTED BY ROCKET-BORNE SENSOR IN THE WIPP CAMPAIGN JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LI, Y. Q., HOLZWORTH, R. H., HU, H., MCCARTHY, M., MASSEY, R. D., KINTNER, P. M., RODRIGUES, J. V., INAN, U. S., ARMSTRONG, W. C. 1991; 96 (A2): 1315–26

    View details for DOI 10.1029/90JA01727

    View details for Web of Science ID A1991EW66600022

  • THE ROLE OF THE IONOSPHERE IN COUPLING UPSTREAM ULF WAVE POWER INTO THE DAYSIDE MAGNETOSPHERE JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Engebretson, M. J., Cahill, L. J., Arnoldy, R. L., Anderson, B. J., Rosenberg, T. J., Carpenter, D. L., Inan, U. S., EATHER, R. H. 1991; 96 (A2): 1527-1542
  • PITCH ANGLE SCATTERING OF ENERGETIC PARTICLES BY OBLIQUE WHISTLER WAVES GEOPHYSICAL RESEARCH LETTERS INAN, U. S., BELL, T. F. 1991; 18 (1): 49–52

    View details for DOI 10.1029/90GL02476

    View details for Web of Science ID A1991EV01000013

  • ON THE SPATIAL RELATIONSHIP BETWEEN LIGHTNING DISCHARGES AND PROPAGATION PATHS OF PERTURBED SUBIONOSPHERIC VLF/LF SIGNALS JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS YIP, W. Y., INAN, U. S., ORVILLE, R. E. 1991; 96 (A1): 249–58

    View details for DOI 10.1029/90JA01997

    View details for Web of Science ID A1991EQ74100022

  • PATH-DEPENDENT PROPERTIES OF SUBIONOSPHERIC VLF AMPLITUDE AND PHASE PERTURBATIONS ASSOCIATED WITH LIGHTNING JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS WOLF, T. G., Inan, U. S. 1990; 95 (A12): 20997-21005
  • WIDE-BAND VLF ELECTROMAGNETIC BURSTS OBSERVED ON THE DE-1 SATELLITE GEOPHYSICAL RESEARCH LETTERS Sonwalkar, V. S., Helliwell, R. A., Inan, U. S. 1990; 17 (11): 1861-1864
  • SUBIONOSPHERIC VLF IMAGING OF LIGHTNING-INDUCED ELECTRON-PRECIPITATION FROM THE MAGNETOSPHERE JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Inan, U. S., KNIFSEND, F. A., Oh, J. 1990; 95 (A10): 17217-17231
  • EQUATORIAL GYRORESONANCE BETWEEN ELECTRONS AND MAGNETOSPHERICALLY REFLECTED WHISTLERS GEOPHYSICAL RESEARCH LETTERS JASNA, D., Inan, U. S., Bell, T. F. 1990; 17 (11): 1865-1868
  • SPACE-TIME EVOLUTION OF WHISTLER MODE WAVE GROWTH IN THE MAGNETOSPHERE JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Carlson, C. R., Helliwell, R. A., Inan, U. S. 1990; 95 (A9): 15073-15089
  • GYRORESONANT WAVE-PARTICLE INTERACTIONS IN A DYNAMIC MAGNETOSPHERE JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Gail, W. B., Inan, U. S., Helliwell, R. A., Carpenter, D. L. 1990; 95 (A9): 15103-15112
  • OBSERVATIONS ON THE DE-1 SPACECRAFT OF ELF VLF WAVES GENERATED BY AN IONOSPHERIC HEATER JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS James, H. G., Inan, U. S., Rietveld, M. T. 1990; 95 (A8): 12187-12195
  • VLF HEATING OF THE LOWER IONOSPHERE GEOPHYSICAL RESEARCH LETTERS Inan, U. S. 1990; 17 (6): 729-732
  • OBSERVATIONS AND MODELING OF WAVE-INDUCED MICROBURST ELECTRON-PRECIPITATION JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Rosenberg, T. J., Wei, R., Detrick, D. L., Inan, U. S. 1990; 95 (A5): 6467-6475
  • RAPID WHISTLER-MODE WAVE GROWTH RESULTING FROM FREQUENCY-TIME CURVATURE GEOPHYSICAL RESEARCH LETTERS Helliwell, R. A., Mielke, T., Inan, U. S. 1990; 17 (5): 599-602
  • 3-DIMENSIONAL MODELING OF SUBIONOSPHERIC VLF PROPAGATION IN THE PRESENCE OF LOCALIZED D-REGION PERTURBATIONS ASSOCIATED WITH LIGHTNING JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS POULSEN, W. L., Bell, T. F., Inan, U. S. 1990; 95 (A3): 2355-2366
  • SIMULTANEOUS DISTURBANCE OF CONJUGATE IONOSPHERIC REGIONS IN ASSOCIATION WITH INDIVIDUAL LIGHTNING FLASHES GEOPHYSICAL RESEARCH LETTERS Burgess, W. C., Inan, U. S. 1990; 17 (3): 259-262
  • CHARACTERISTICS OF WAVE-PARTICLE INTERACTIONS DURING SUDDEN COMMENCEMENTS .2. SPACECRAFT OBSERVATIONS JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Gail, W. B., Inan, U. S. 1990; 95 (A1): 139-147
  • Modification of the lower ionosphere in lightning-induced electron precipitation events and through VLF heating AGARD, Ionospheric Modification and its Potential to Enhance or Degrade the Performance of Military Systems Inan, U. 1990; 12: 10-46
  • Whistler precursors on a VLF transmitter signal Journal of Geophysical Research Inan, U., Paschal, E. W. 1990
  • Lightning, whistlers, and hiss - A possible relationship Physics of Space Plasmas (1989) Inan, U., Sonwalkar, V. S. 1990
  • Space-time evolution of whistler mode wavegrowth in the magnetosphere Journal of Geophysical Research Carlson, C. R., Helliwell, R. A., Inan, U. 1990
  • Observations on the DE 1 spacecraft of ELF/VLF waves generated byan ionospheric heater Journal of Geophysical Research James, H. G., Inan, U., Rietveld, T. 1990
  • Characteristics of wave-particle interactions during sudden commencements. I - Ground-based observations Journal of Geophysical Research Gail, W. B., Inan, U., Helliwell, R. A., Carpenter, D. L., Krishnaswamy, S. 1990
  • Electrostatic lower hybrid waves excited by electromagnetic whistler mode waves scattering from planar magnetic-field-aligned plasma density irregularities Journal of Geophysical Research Inan, U., Bell, T. F., Ngo, D. 1990
  • Ionospheric signatures of cusp latitude Pc 3 pulsations Journal of Geophysical Research Inan, U., Engebretson, M. J., Anderson, J., Jr., Cahill, Arnoldy, R. L., Rosenberg, T. J. 1990
  • Three-dimensional modeling of subionospheric VLF propagation in the presence of localized D region perturbations associated with lightning ournal of Geophysical Research Poulsen, W. L., Bell, T. F., Inan, U. 1990
  • Rapid whistler-mode wave growth resulting from frequency-time curvature Geophysical Research Letters Helliwell, R. A., Mielke, T. A., Inan, U. 1990
  • Observations and modeling of wave-induced microburst electron precipitation Journal of Geophysical Research Rosenberg, T. J., Wei, R., Detrick, L., Inan, U. 1990
  • Correlation of whistler mode phase delay with transient hydromagnetic waves Journal of Geophysical Research Inan, U., Paschal, E. W., Lanzerotti, J., Maclennan, G. 1990
  • Wideband VLF electromagnetic bursts observed on the DE 1 satellite Geophysical Research Letters Sonwalkar, V. S., Helliwell, R. A., Inan, U. 1990
  • Wave-induced burst precipitation events detected with a digital ionosonde Geophysical Research Letters Inan, U., Jarvis, M. J., Smith, J., Berkey, T., Carpenter, D. L. 1990
  • Simultaneous disturbance of conjugate ionospheric regions in association with individual lightning flashes Geophysical Research Letters Burgess, W. C., Inan, U. 1990
  • Subionospheric VLF 'imaging' of lightning-induced electron precipitation from the magnetosphere Journal of Geophysical Research Inan, U., Knifsend, F. A., Oh, J. 1990
  • A wave-particle-wave interaction mechanism as a cause of VLF triggered emissions Journal of Geophysical Research Inan, U., Sa, L. A. 1990
  • Characteristics of wave-particle interactions during sudden commencements. II - Spacecraft observations Journal of Geophysical Research Gail, W. B., Inan, U. 1990
  • Equatorial gyroresonance between electrons and magnetosphericallyreflected whistlers Geophysical Research Letters Jasna, D., Inan, U., Bell, T. F. 1990
  • Theory of electromagnetic cyclotron wave growth in a time-varying magnetoplasma Journal of Geophysical Research Inan, U., Gail, W. B. 1990
  • CHARACTERISTICS OF WAVE-PARTICLE INTERACTIONS DURING SUDDEN COMMENCEMENTS .1. GROUND-BASED OBSERVATIONS JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Gail, W. B., Inan, U. S., Helliwell, R. A., Carpenter, D. L., Krishnaswamy, S., Rosenberg, T. J., LANZEROTTI, L. J. 1990; 95 (A1): 119-137
  • CHARACTERISTICS OF SHORT-DURATION ELECTRON-PRECIPITATION BURSTS AND THEIR RELATIONSHIP WITH VLF WAVE ACTIVITY JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Imhof, W. L., Voss, H. D., Mobilia, J., Walt, M., Inan, U. S., Carpenter, D. L. 1989; 94 (A8): 10079-10093
  • LIGHTNING AS AN EMBRYONIC SOURCE OF VLF HISS JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS SONWALKAR, V. S., INAN, U. S. 1989; 94 (A6): 6986–94
  • ENERGY-SPECTRA AND PITCH ANGLE DISTRIBUTIONS OF LIGHTNING-INDUCED ELECTRON-PRECIPITATION - ANALYSIS OF AN EVENT OBSERVED ON THE S81-1(SEEP) SATELLITE JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Inan, U. S., Walt, M., Voss, H. D., Imhof, W. L. 1989; 94 (A2): 1379-1401
  • Lightning as an embryonic source of VLF hiss Journal of Geophysical Research Sonwalkar, V. S., Inan, U. 1989
  • The excitation of active whistler mode signal paths in the magnetosphere by lightning - Two case studies Journal of Geophysical Research Inan, U., Carpenter, D. L., Orville, E. 1989
  • Characteristics of short-duration electron precipitation bursts and their relationship with VLF wave activity Journal of Geophysical Research Imhof, W. L., Voss, H. D., Mobilia, J., Walt, M., Inan, U. 1989
  • A cyclotron resonance mechanism for very-low-frequency whistler-mode sideband wave radiation. I - Introduction and description of external resonances. II - Description of internal ('trapped') resonances. III - Effect of the inhomogeneity on sideband reson Journal of Applied Physics Inan, U., Sa, L. A. 1989
  • A cyclotron resonance mechanism for very-low-frequency whistler-mode sideband wave radiation. III. Effect of the inhomogeneity on sideband resonances Journal of Applied Physics Inan, U., Sa, L. A. 1989
  • Energy spectra and pitch angle distributions of lightning-inducedelectron precipitation - Analysis of an event observed on the S81-1 (SEEP) satellite Journal of Geophysical Research Inan, U., Walt, M., Voss, D., Imhof, L. 1989
  • A cyclotron resonance mechanism for very-low-frequency whistler-mode sideband wave radiation. II. Description of internal (``trapped'') resonances Journal of Applied Physics Inan, U., Sa, L. A. 1989
  • SUBIONOSPHERIC VLF SIGNATURES OF NIGHTTIME D-REGION PERTURBATIONS IN THE VICINITY OF LIGHTNING DISCHARGES JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Inan, U. S., SHAFER, D. C., Yip, W. Y., Orville, R. E. 1988; 93 (A10): 11455-11472
  • GEOGRAPHIC-DISTRIBUTION OF LIGHTNING-INDUCED ELECTRON-PRECIPITATION OBSERVED AS VLF LF PERTURBATION EVENTS JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Inan, U. S., WOLF, T. G., Carpenter, D. L. 1988; 93 (A9): 9841-9853
  • WAVE NORMAL DIRECTION AND SPECTRAL PROPERTIES OF WHISTLER MODE HISS OBSERVED ON THE DE-1 SATELLITE JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Sonwalkar, V. S., Inan, U. S. 1988; 93 (A7): 7493-7514
  • PLASMA-WAVE OBSERVATIONS WITH THE DYNAMICS EXPLORER-1 SPACECRAFT REVIEWS OF GEOPHYSICS Gurnett, D. A., Inan, U. S. 1988; 26 (2): 285-316
  • SATELLITE-OBSERVATIONS OF A NEW TYPE OF DISCRETE VLF EMISSION AT L LESS-THAN 4 JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS POULSEN, W. L., Inan, U. S. 1988; 93 (A3): 1817-1838
  • OBSERVATION OF AN IONOSPHERIC DISTURBANCE CAUSED BY A GAMMA-RAY BURST NATURE Fishman, G. J., Inan, U. S. 1988; 331 (6155): 418-420
  • LIGHTNING-ASSOCIATED PRECIPITATION OF MEV ELECTRONS FROM THE INNER RADIATION BELT GEOPHYSICAL RESEARCH LETTERS Inan, U. S., Burgess, W. C., WOLF, T. G., SHATER, D. C., Orville, R. E. 1988; 15 (2): 172-175
  • Plasma wave observations with the Dynamics Explorer 1 spacecraft Reviews of Geophysics Gurnett, D. A., Inan, U. 1988
  • Remote sensing of the magnetospheric plasma by means of whistler mode signals Reviews of Geophysics Inan, U., Carpenter, D. L. 1988
  • Ducted whistler propagation outside the plasmapause Journal of Geophysical Research Inan, U., Carpenter, D. L., Sulic, M. 1988
  • A new global survey of ELF/VLF radio noise AGARD, Effects of Electromagnetic Noise and Interference on Performance of Military Radio Communication Systems Inan, U. 1988; 15: 11-32
  • Geographic distribution of lightning-induced electron precipitation observed as VLF/LF perturbation events Journal of Geophysical Research Inan, U., G, W. T., Carpenter, D. L. 1988
  • Electrostatic waves stimulated by coherent VLF signals propagating in and near the inner radiation belt Journal of Geophysical Research Inan, U., Bell, T. F., Ngo, D. 1988
  • Satellite observations of a new type of discrete VLF emission at L below 4 Journal of Geophysical Research Poulsen, W. L., Inan, U. 1988
  • VLF wave stimulation experiments in the magnetosphere from Siple Station, Antarctica Reviews of Geophysics Inan, U., Helliwell, R. A. 1988
  • Structure of VLF whistler mode sideband waves in the magnetosphere Journal of Geophysical Research Inan, U., Sa, L. A., Helliwell, R. A. 1988
  • Wave normal direction and spectral properties of whistler mode hiss observed on the DE 1 satellite Journal of Geophysical Research Sonwalkar, V. S., Inan, U. 1988
  • Subionospheric VLF signatures of nighttime D region perturbationsin the vicinity of lightning discharges Journal of Geophysical Research Inan, U., C, S. D., Yip, Y., Orville, E. 1988
  • The Siple VLF transmitter as a multi-frequency probe of the earth-ionosphere waveguide Journal of Atmospheric and Terrestrial Physics Inan, U., Carpenter, D. L., Bell, T. F., Smith, J. 1988
  • VLF wave-injection experiments from Siple Station, Antarctica Advances in Space Research Inan, U., Helliwell, R. A. 1988
  • WAVES AND INSTABILITIES REVIEWS OF GEOPHYSICS Inan, U. S. 1987; 25 (3): 588-598
  • SEASONAL, LATITUDINAL AND DIURNAL DISTRIBUTIONS OF WHISTLER-INDUCED ELECTRON-PRECIPITATION EVENTS JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Carpenter, D. L., Inan, U. S. 1987; 92 (A4): 3429-3435
  • LIGHTNING-INDUCED ELECTRON-PRECIPITATION EVENTS OBSERVED AT L-APPROXIMATELY-2.4 AS PHASE AND AMPLITUDE PERTURBATIONS ON SUBIONOSPHERIC VLF SIGNALS JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Inan, U. S., Carpenter, D. L. 1987; 92 (A4): 3293-3303
  • GYRORESONANT PITCH ANGLE SCATTERING BY COHERENT AND INCOHERENT WHISTLER MODE WAVES IN THE MAGNETOSPHERE JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Inan, U. S. 1987; 92 (A1): 127-142
  • Wave-induced particle precipitation from the magnetosphere and the associated ionospheric perturbations AGARD, The Aerospace Environment at High Altitudes and its Implications for Spacecraft Charging and Communications Inan, U. 1987; 10: SEE N87-26937 21-18
  • Seasonal, latitudinal and diurnal distributions of whistler-induced electron precipitation events Journal of Geophysical Research Carpenter, D. L., Inan, U. 1987
  • Lightning-induced electron precipitation events observed at L of about 2.4 as phase and amplitude perturbations on subionospheric VLF signals Journal of Geophysical Research Inan, U., Carpenter, D. L. 1987
  • Lightning triggered from the earth's magnetosphere as the source of synchronized whistlers Nature Inan, U., Armstrong, W. 1987
  • The Space Shuttle as a platform for observations of ground-based transmitter signals and whistlers Journal of Geophysical Research Inan, U., Neubert, T., Bell, T. F., Storey, O., Gurnett, D. A. 1987
  • Spin modulation of spectrally broadened VLF signals Journal of Geophysical Research Inan, U., James, H. G., Bell, T. F. 1987
  • Resonance between coherent whistler mode waves and electrons in the topside ionosphere Journal of Geophysical Research Inan, U., Neubert, T., Bell, T. F., Storey, O. 1987
  • MODEL PREDICTIONS OF SUBIONOSPHERIC VLF SIGNAL PERTURBATIONS RESULTING FROM LOCALIZED, ELECTRON PRECIPITATION-INDUCED IONIZATION ENHANCEMENT REGIONS JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Tolstoy, A., Rosenberg, T. J., Inan, U. S., Carpenter, D. L. 1986; 91 (A12): 3473-3482
  • BURST PRECIPITATION INDUCED PERTURBATIONS ON MULTIPLE VLF PROPAGATION PATHS IN ANTARCTICA ANNALES GEOPHYSICAE SERIES A-UPPER ATMOSPHERE AND SPACE SCIENCES HURREN, P. J., SMITH, A. J., Carpenter, D. L., Inan, U. S. 1986; 4 (4): 311-318
  • GENERATION OF BAND-LIMITED VLF NOISE USING THE SIPLE TRANSMITTER - A MODEL FOR MAGNETOSPHERIC HISS JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Helliwell, R. A., Carpenter, D. L., Inan, U. S., KATSUFRAKIS, J. P. 1986; 91 (A4): 4381-4392
  • JOVIAN VLF CHORUS AND IO TORUS AURORA JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS INAN, U. S. 1986; 91 (A4): 4543–50
  • ON THE CORRELATION OF WHISTLERS AND ASSOCIATED SUBIONOSPHERIC VLF LF PERTURBATIONS JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Inan, U. S., Carpenter, D. L. 1986; 91 (A3): 3106-3116
  • MEASUREMENTS OF SIPLE TRANSMITTER SIGNALS ON THE DE-1 SATELLITE - WAVE NORMAL DIRECTION AND ANTENNA EFFECTIVE LENGTH JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Sonwalkar, V. S., Inan, U. S. 1986; 91 (A1): 154-164
  • Measurements of Siple transmitter signals on the DE 1 satellite - Wave normal direction and antenna effective length Journal of Geophysical Research Sonwalker, V. S., Inan, U. 1986
  • On the correlation of whistlers and associated subionospheric VLF/LF perturbations Journal of Geophysical Research Inan, U., Carpenter, D. L. 1986
  • Jovian VLF chorus and Io torus aurora Journal of Geophysical Research Inan, U. 1986
  • The third hop whistler anomaly - Possible evidence of df/dt-dependent wave amplifications Journal of Atmospheric and Terrestrial Physics Inan, U., Carpenter, D. L., Sulic, M., Smith, J. 1986
  • The wave magnetic field amplitude threshold for nonlinear trapping of energetic gyroresonant and Landau resonant electrons by nonducted VLF waves in the magnetosphere Journal of Geophysical Research Inan, U., Bell, T. F. 1986
  • SPR: The next two years EOS Inan, U., Helliwell, R. A. 1986
  • Radiometer Installation Scientific Bulletin Inan, U. 1986
  • Beat excitation of whistler mode sidebands using the Siple VLF transmitter Journal of Geophysical Research Helliwell, R. A., Inan, U., Katsufrakis, P., Carpenter, D. L. 1986
  • Latitudinal plasma distribution in the dusk plasmaspheric bulge - Refilling phase and quasi-equilibrium state Journal of Geophysical Research Inan, U., Décréau, P. M., Carpenter, D. L., Chappell, R., Green, J. L., Waite Jr., J, H 1986
  • Study of a QP/GP event at very high latitudes Journal of Geophysical Research Inan, U., Lanzerotti, L. J., Maclennan, G., Medford, V., Carpenter, C. L. 1986
  • Whistler studies of the plasmasphere shape and dynamics Advances in Space Research Inan, U., Carpenter, D. L. 1986
  • BEAT EXCITATION OF WHISTLER MODE SIDE-BAND USING THE SIPLE VLF TRANSMITTER JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Helliwell, R. A., Inan, U. S., KATSUFRAKIS, J. P., Carpenter, D. L. 1986; 91 (A1): 143-153
  • LIGHTNING-INDUCED ELECTRON-PRECIPITATION FROM THE MAGNETOSPHERE JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Chang, H. C., Inan, U. S. 1985; 90 (NA2): 1531-1541
  • SPECTRAL BROADENING OF VLF TRANSMITTER SIGNALS OBSERVED ON DE-1 - A QUASI-ELECTROSTATIC PHENOMENON JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS INAN, U. S., BELL, T. F. 1985; 90 (NA2): 1771–75
  • A NEW VLF METHOD FOR STUDYING BURST PRECIPITATION NEAR THE PLASMAPAUSE JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Carpenter, D. L., Inan, U. S., PASCHAL, E. W., SMITH, A. J. 1985; 90 (NA5): 4383-4388
  • Precipitation of radiation belt electrons by man-made waves A comparison between theory and measurement Journal of Geophysical Research Inan, U., Chang, H. C., Helliwell, R. A., Imhof, L., Reagan, J. B., Walt, M. 1985
  • Test particle modeling of wave-induced energetic electron precipitation Journal of Geophysical Research Chang, H. C., Inan, U. 1985
  • Lightning-induced electron precipitation from the magnetosphere Journal of Geophysical Research Chang, H. C., Inan, U. 1985
  • Correction to ``Variable Frequency VLF Signals in the Magnetosphere: Associated Phenomena and Plasma Diagnostics'' Journal of Geophysical Research Inan, U., Carlson, C. R., Helliwell, R. A., Carpenter, D. L. 1985
  • High-amplitude VLF transmitter signals and associated sidebands observed near the magnetic equatorial plane on the ISEE 1 satellite Journal of Geophysical Research Inan, U., Bell, T. F. 1985
  • DE 1 observations of Siple transmitter signals and associated sidebands Journal of Geophysical Research Rastani, K., Inan, U., Helliwell, R. A. 1985
  • Wave-induced precipitation as a loss process for radiation belt particles Advances in Space Research Inan, U., Chang, H. C., Helliwell, R. A., Katsufrakis, P., Imhof, W. L. 1985
  • Subionospheric VLF/LF phase perturbations produced by lightning-whistler induced particle precipitation Journal of Geophysical Research Inan, U., Carpenter, D. L., Helliwell, R. A., Katsufrakis, P. 1985
  • Transient tropospheric electric fields resulting from sudden changes in ionospheric conductivity Journal of Geophysical Research Dejnakarintra, M., Inan, U., Carpenter, D. L. 1985
  • A new type of VLF emission triggered at low altitude in the subauroral region by Siple Station VLF transmitter signals Journal of Geophysical Research Inan, U., Bell, T. F., Katsufrakis, P., James, G. 1985
  • Results from the SEEP active space plasma experiment - Effects onthe ionosphere Radio Science Inan, U., Imhof, W. L., Gaines, E., Voss, D., Reagan, J. B., Datlowe, D. W. 1985
  • Recent research on magnetospheric wave-particle interactions National Institute Polar Research Memoirs Helliwell, R. A., Inan, U., Katsufrakis, P., Carpenter, D. L., Paschal, E. W. 1985
  • The Stanford University ELF/VLF radiometer project Measurement of the global distribution of ELF/VLF electromagnetic noise International Symposium on Electromagnetic Compatibility Inan, U., Fraser-Smith, A. C., Helliwell, R. A. 1985
  • Variable frequency VLF signals in the magnetosphere Associated phenomena and plasma diagnostics Journal of Geophysical Research Inan, U., Carlson, C. R., Helliwell, R. A., Carpenter, D. L. 1985
  • Spectral broadening of VLF transmitter signals observed on DE 1 - A quasi-electrostatic phenomenon? Journal of Geophysical Research Inan, U., Bell, T. F. 1985
  • A new VLF method for studying burst precipitation near the plasmapause Journal of Geophysical Research Carpenter, D. L., Inan, U., Paschal, E. W., Smith, J. 1985
  • Characterization of the sources of VLF hiss and chorus observed on Geos 1 Journal of Geophysical Research Lefeuvre, F., Helliwell, R. A. 1985
  • TRANSIENT TROPOSPHERIC ELECTRIC-FIELDS RESULTING FROM SUDDEN CHANGES IN IONOSPHERIC CONDUCTIVITY JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS DEJNAKARINTRA, M., Inan, U. S., Carpenter, D. L. 1985; 90 (NA12): 2271-2281
  • SUBIONOSPHERIC VLF LF PHASE PERTURBATIONS PRODUCED BY LIGHTNING-WHISTLER INDUCED PARTICLE-PRECIPITATION JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Inan, U. S., Carpenter, D. L., Helliwell, R. A., KATSUFRAKIS, J. P. 1985; 90 (NA8): 7457-7469
  • WHISTLER-TRIGGERED VLF NOISE BURSTS OBSERVED ON THE DE-1 SATELLITE AND SIMULTANEOUSLY AT ANTARCTIC GROUND STATIONS ANNALES GEOPHYSICAE SMITH, A. J., Carpenter, D. L., Inan, U. S. 1985; 3 (1): 81-88
  • DE-1 OBSERVATIONS OF SIPLE TRANSMITTER SIGNALS AND ASSOCIATED SIDEBANDS JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Rastani, K., Inan, U. S., Helliwell, R. A. 1985; 90 (NA5): 4128-4140
  • TEST PARTICLE MODELING OF WAVE-INDUCED ENERGETIC ELECTRON-PRECIPITATION JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Chang, H. C., Inan, U. S. 1985; 90 (NA7): 6409-6418
  • PRECIPITATION OF RADIATION BELT ELECTRONS BY MAN-MADE WAVES - A COMPARISON BETWEEN THEORY AND MEASUREMENT JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Inan, U. S., Chang, H. C., Helliwell, R. A., Imhof, W. L., REAGAN, J. B., Walt, M. 1985; 90 (NA1): 359-369
  • RESULTS FROM THE SEEP ACTIVE SPACE PLASMA-EXPERIMENT - EFFECTS ON THE IONOSPHERE RADIO SCIENCE Imhof, W. L., Gaines, E. E., Voss, H. D., REAGAN, J. B., Datlowe, D. W., Mobilia, J., Helliwell, R. A., Inan, U. S., KATSUFRAKIS, J., JOINER, R. G. 1985; 20 (3): 511-518
  • ELECTRON-PRECIPITATION ZONES AROUND MAJOR GROUND-BASED VLF SIGNAL SOURCES JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Inan, U. S., Chang, H. C., Helliwell, R. A. 1984; 89 (NA5): 2891-2906
  • DIURNAL-VARIATION OF BURST PRECIPITATION EFFECTS ON SUBIONOSPHERIC VLF/LF SIGNAL PROPAGATION NEAR L = 2 JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Leyser, T. B., Inan, U. S., Carpenter, D. L., Trimpi, M. L. 1984; 89 (NA10): 9139-9143
  • Modulated beam injection from the Space Shuttle during magnetic conjunctions of STS 3 with the DE 1 satellite Radio Science Inan, U., Pon, M., Banks, M., Williamson, R., Raitt, W. J., Shawhan, S. G. 1984
  • Diurnal variation of burst precipitation effects on subionospheric VLF /LF signal propagation near L = 2 Journal of Geophysical Research Leyser, T. B., Inan, U., Carpenter, D. L., Trimpi, L. 1984
  • Whistler induced suppression of VLF noise Journal of Geophysical Research Inan, U., Gail, W. B., Carpenter, D. L. 1984
  • Phase measurements of whistler mode signals from the Siple VLF transmitter Journal of Geophysical Research Inan, U., Paschal, E. W., Helliwell, R. A. 1984
  • Perturbations of subionspheric LF and MF signals due to whistler-induced electron precipitation bursts Journal of Geophysical Research Carpenter, D. L., Inan, U., Trimpi, L., Helliwell, R. A., Katsufrakis, J. P. 1984
  • The nonlinear gyroresonance interaction between energetic electrons and coherent VLF waves propagating at an arbitrary angle with respect to the earth's magnetic field Journal of Geophysical Research Inan, U., Bell, T. F. 1984
  • Electron precipitation zones around major ground-based VLF signalsources Journal of Geophysical Research Inan, U., Chang, H. C., Helliwell, R. A. 1984
  • Lightning-induced electron precipitation Nature Voss, H. D., Imhof, W. L., Walt, M., Mobilia, J., Gaines, E. E., Reagan, J. B., Inan, U. S. 1984
  • PERTURBATIONS OF SUBIONOSPHERIC LF AND MF SIGNALS DUE TO WHISTLER-INDUCED ELECTRON-PRECIPITATION BURSTS JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Carpenter, D. L., Inan, U. S., Trimpi, M. L., Helliwell, R. A., KATSUFRAKIS, J. P. 1984; 89 (NA11): 9857-9862
  • LIGHTNING-INDUCED ELECTRON-PRECIPITATION NATURE Voss, H. D., Imhof, W. L., Walt, M., Mobilia, J., Gaines, E. E., REAGAN, J. B., Inan, U. S., Helliwell, R. A., Carpenter, D. L., KATSUFRAKIS, J. P., Chang, H. C. 1984; 312 (5996): 740-742
  • DIRECT MULTIPLE PATH MAGNETOSPHERIC PROPAGATION - A FUNDAMENTAL PROPERTY OF NONDUCTED VLF WAVES JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Sonwalkar, V. S., Bell, T. F., Helliwell, R. A., Inan, U. S. 1984; 89 (NA5): 2823-2830
  • NONLINEAR PITCH ANGLE SCATTERING AND TRAPPING OF ENERGETIC PARTICLES DURING LANDAU RESONANCE INTERACTIONS WITH WHISTLER MODE WAVES JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS TKALCEVIC, S., Inan, U. S., Helliwell, R. A. 1984; 89 (NA12): 813-826
  • MODULATED BEAM INJECTION FROM THE SPACE-SHUTTLE DURING MAGNETIC CONJUNCTIONS OF STS-3 WITH THE DE-1 SATELLITE RADIO SCIENCE Inan, U. S., PON, M., BANKS, P. M., Williamson, P. R., Raitt, W. J., SHAWHAN, S. D. 1984; 19 (2): 487-495
  • THE MODULATED PRECIPITATION OF RADIATION BELT ELECTRONS BY CONTROLLED SIGNALS FROM VLF TRANSMITTERS GEOPHYSICAL RESEARCH LETTERS Imhof, W. L., REAGAN, J. B., Voss, H. D., Gaines, E. E., Datlowe, D. W., Mobilia, J., Helliwell, R. A., Inan, U. S., KATSUFRAKIS, J., JOINER, R. G. 1983; 10 (8): 615-618
  • EXOS-B/Siple station VLF wave-particle interaction experiments. I- General description and wave-particle correlations Journal of Geophysical Research Kimura, I., K, H., Matsumoto, H., Mukai, T., Bell, T. F., Inan, U. 1983
  • Very-low frequency signals (2-10 kHz) received at Palmer Station, Antarctica, from the 21.4 km dipole antenna at Siple Station, 1400 km distant Journal of Atmospheric and Terrestrial Physics Inan, U., Tkalcevic, S. 1983
  • Photometric evidence of electron precipitation induced by first HOP whistlers Geophysical Research Letters Inan, U., Doolittle, J. H., Carpenter, D. L. 1983
  • In situ measurements of transionospheric VLF wave injection Journal of Geophysical Research Inan, U., M, K. P., Brittain, R., Kelley, C., Carpenter, D. L., Rycroft, M. J. 1983
  • {Energetic electron precipitation due to gyroresonant interactionsin the magnetosphere involving coherent VLF waves with slowly varying frequency} Journal of Geophysical Research Chang, H. C., Inan, U., Bell, T. F. 1983
  • Rare ground-based observations of Siple VLF transmitter signals outside the plasmapause Journal of Geophysical Research Inan, U., Carpenter, D. L., Miller, R. 1983
  • EXOS-B/Siple station VLF wave-particle interaction experiments. II - Transmitter signals and associated emissions Journal of Geophysical Research Bell, T. F., Inan, U., Kimura, I., Hashimoto, K., Matsumoto, H., Mukai, T. 1983
  • Ground observations of power line radiation coupled to the ionosphere and magnetosphere Space Science Reviews Inan, U., Park, C. G., Helliwell, R. A., Lefeuvre, F. 1983
  • Some aspects of plasmapause probing by whistlers Radio Science Inan, U., Inan, U. 1983
  • Quasi-relativistic electron precipitation due to interactions with coherent VLF waves in the magnetosphere Journal of Geophysical Research Chang, H. C., Inan, U. 1983
  • Terrestrial versus Jovian VLF chorus - A comparative study Journal of Geophysical Research Inan, U., Helliwell, R. A., Kurth, S. 1983
  • Occurrence properties of ducted whistler-mode signals from the new VLF transmitter at Siple Station, Antarctica Journal of Geophysical Research Inan, U., Carpenter, D. L., Bao, T. 1983
  • Standing wave patterns in VLF hiss Journal of Geophysical Research Inan, U., Brittain, R., Kintner, M., Kelley, C., Siren, J. C., Carpenter, D. L. 1983
  • Controlled stimulation of VLF emissions from Siple Station, Antarctica Radio Science Inan, U., Carpenter, D. L. 1983
  • A theoretical model study of observed correlations between whistler mode waves and energetic electron precipitation events in the magnetosphere Journal of Geophysical Research Chang, H. C., Inan, U. 1983
  • VLF wave injections from the ground ESA Special Publication Inan, U., Helliwell, R. A. 1983
  • DIRECT OBSERVATION OF RADIATION BELT ELECTRONS PRECIPITATED BY THE CONTROLLED INJECTION OF VLF SIGNALS FROM A GROUND-BASED TRANSMITTER GEOPHYSICAL RESEARCH LETTERS Imhof, W. L., REAGAN, J. B., Voss, H. D., Gaines, E. E., Datlowe, D. W., Mobilia, J., Helliwell, R. A., Inan, U. S., KATSUFRAKIS, J., JOINER, R. G. 1983; 10 (4): 361-364
  • ENERGETIC ELECTRON-PRECIPITATION DUE TO GYRORESONANT INTERACTIONS IN THE MAGNETOSPHERE INVOLVING COHERENT-VLF WAVES WITH SLOWLY VARYING FREQUENCY JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Chang, H. C., Inan, U. S., Bell, T. F. 1983; 88 (NA9): 7037-7050
  • QUASI-RELATIVISTIC ELECTRON-PRECIPITATION DUE TO INTERACTIONS WITH COHERENT VLF WAVES IN THE MAGNETOSPHERE JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Chang, H. C., Inan, U. S. 1983; 88 (NA1): 318-328
  • TERRESTRIAL VERSUS JOVIAN VLF CHORUS - A COMPARATIVE-STUDY JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Inan, U. S., Helliwell, R. A., Kurth, W. S. 1983; 88 (NA8): 6171-6180
  • A THEORETICAL-MODEL STUDY OF OBSERVED CORRELATIONS BETWEEN WHISTLER MODE WAVES AND ENERGETIC ELECTRON-PRECIPITATION EVENTS IN THE MAGNETOSPHERE JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Chang, H. C., Inan, U. S. 1983; 88 (NA12): 53-58
  • EXOS-B SIPLE STATION VLF WAVE-PARTICLE INTERACTION EXPERIMENTS .2. TRANSMITTER SIGNALS AND ASSOCIATED EMISSIONS JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Bell, T. F., Inan, U. S., Kimura, I., Matsumoto, H., Mukai, T., HASHIMOTO, K. 1983; 88 (NA1): 295-309
  • THE APPARENT SPECTRAL BROADENING OF VLF TRANSMITTER SIGNALS DURING TRANSIONOSPHERIC PROPAGATION JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Bell, T. F., James, H. G., Inan, U. S., KATSUFRAKIS, J. P. 1983; 88 (NA6): 4813-4840
  • EXOS-B SIPLE STATIONS VLF WAVE-PARTICLE INTERACTION EXPERIMENTS .1. GENERAL DESCRIPTION AND WAVE-PARTICLE CORRELATIONS JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Kimura, I., Matsumoto, H., Mukai, T., HASHIMOTO, K., Bell, T. F., Inan, U. S., Helliwell, R. A., KATSUFRAKIS, J. P. 1983; 88 (NA1): 282-294
  • VLF WAVE GROWTH AND DISCRETE EMISSION TRIGGERING IN THE MAGNETOSPHERE - A FEEDBACK MODEL JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Helliwell, R. A., Inan, U. S. 1982; 87 (NA5): 3537-3550
  • A study of whistlers correlated with bursts of electron precipitat ion near L = 2 Journal of Geophysical Research Inan, U., Carptener, D. L., Labelle, J. W. 1982
  • ISEE 1 observations of VLF line radiation in the earth's magnetosphere Journal of Geophysical Research Bell, T. F., Inan, U., Luette, P. 1982
  • Particle precipitation induced by short-duration VLF waves in themagnetosphere Journal of Geophysical Research Inan, U., Bell, T. F., Chang, C. 1982
  • DE-1 observations of VLF transmitter signals and wave-particle interactions in the magnetosphere Geophysical Research Letters Inan, U., Helliwell, R. A. 1982
  • Whistlers Inan, U., Park, C. G. 1982
  • Nonlinear equations of motion for Landau resonance interactions with a whistler mode wave Journal of Geophysical Research Inan, U., Inan, U. 1982
  • The influence of localized precipitation-induced D-region ionization enhancements on subionospheric VLF propagation Geophysical Research Letters Tolstoy, A., Rosenberg, T. J., Carpenter, D. L. 1982
  • Echoing mixed-path whistlers near the dawn plasmapause, observed by direction-finding receivers at two Antarctic stations Journal of Atmospheric and Terrestrial Physics Inan, U., Inan, U., Carpenter, D. L. 1982
  • NON-LINEAR EQUATIONS OF MOTION FOR LANDAU RESONANCE INTERACTIONS WITH A WHISTLER MODE WAVE JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Inan, U. S., TKALCEVIC, S. 1982; 87 (NA4): 2363-2367
  • PARTICLE-PRECIPITATION INDUCED BY SHORT-DURATION VLF WAVES IN THE MAGNETOSPHERE JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Inan, U. S., Bell, T. F., Chang, H. C. 1982; 87 (NA8): 6243-6264
  • ISEE-1 OBSERVATIONS OF VLF LINE RADIATION IN THE EARTHS MAGNETOSPHERE JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Bell, T. F., LUETTE, J. P., Inan, U. S. 1982; 87 (NA5): 3530-3536
  • DE-1 OBSERVATIONS OF VLF TRANSMITTER SIGNALS AND WAVE-PARTICLE INTERACTIONS IN THE MAGNETOSPHERE GEOPHYSICAL RESEARCH LETTERS Inan, U. S., Helliwell, R. A. 1982; 9 (9): 917-920
  • NONDUCTED COHERENT VLF WAVES AND ASSOCIATED TRIGGERED EMISSIONS OBSERVED ON THE ISEE-1 SATELLITE JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Bell, T. F., Inan, U. S., Helliwell, R. A. 1981; 86 (NA6): 4649-4670
  • A ground-satellite study of wave-particle correlations Journal of Geophysical Research Inan, U., Park, C. G., Parks, K., Lin, S. 1981
  • A study of the outer limits of ducted whistler propagation in the magnetosphere Journal of Geophysical Research Inan, U., Carpenter, D. L. 1981
  • A comparison of equatorial electron densities measured by whistlers and by a satellite radio technique Geophysical Research Letters Inan, U., Carpenter, D. L., Bell, T. F., Miller, R., Anderson, R. R. 1981
  • Satellite measurements during Siple Station VLF wave-injection experiments Antarctic Journa Bell, T. F., Inan, U. 1981
  • Generation of whistler-mode sidebands in the magnetosphere Journal of Geophysical Research Inan, U., Park, C. G. 1981
  • Electron precipitation induced by VLF noise bursts at the plasmapause and detected at conjugate ground stations Journal of Geophysical Research Inan, U., Dingle, B., Carpenter, D. L. 1981
  • Longitudinal variations of plasmapause radius and the propagationof VLF noise within small /Delta L approximately 0.5/ extensions of the plasmasphere Geophysical Research Letters Inan, U., Smith, A. J., Carpenter, D. L., Lester, M. 1981
  • Transient nonlinear pitch angle scattering of energetic electrons by coherent VLF wave packets in the magnetosphere Journal of Geophysical Research Bell, T. F., Inan, U. 1981
  • The plasma wave and quasi-static electric field instrument /PWI/ for dynamics Explorer-A Space Science Instrumentation Inan, U., Shawhan, S. D., Gurnett, D. A., Odem, L., Helliwell, R. A., Park, C. G. 1981
  • Jikiken /EXOS-B/ observation of Siple transmissions Advances in Space Research Kimura, I., Matsumoto, H., Hashimoto, K., Mukai, T., Helliwell, R. A., Bell, T. F., Inan, U. S. 1981
  • VLF transmissions from Siple Station Antarctic Journal Inan, U., Katsufrakis, J. P. 1981
  • Active and passive VLF experiments at Siple Station, 1980-1981 Antarctic Journal Inan, U., Carpenter, D. L. 1981
  • A VLF transmitter on the Space Shuttle Advances in Space Research Inan, U., Bell, T. F., Helliwell, R. A., Katsufrakis, P. 1981
  • Power line radiation in the magnetosphere Advances in Space Research Inan, U., Park, C. G., Helliwell, R. A. 1981
  • Conjugacy of electron microbursts and VLF chorus Journal of Geophysical Research Inan, U., Rosenberg, T. J., Siren, C., Matthews, L., Marthinsen, K., Holtet, J. A. 1981
  • New upper atmosphere program at South Pole Station, Antarctic Journal Inan, U., Carpenter, D. L., Katsufrakis, P. 1981
  • ISEE-1 observations in the magnetosphere of VLF emissions triggered by nonducted coherent VLF waves during VLF wave-injection experiments Advances in Space Research Bell, T. F., Inan, U. 1981
  • TRANSIENT NON-LINEAR PITCH ANGLE SCATTERING OF ENERGETIC ELECTRONS BY COHERENT VLF WAVE-PACKETS IN THE MAGNETOSPHERE JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Bell, T. F., Inan, U. S. 1981; 86 (NA11): 9047-9063
  • Observations of Siple transmitter signals on the ISIS satellites Antarctic Journal Inan, U., Katsufrakis, J. P., Helliwell, R. A., James, G. 1980
  • ELF sferic occurrences in the Antarctic during a solar proton event - Case study of occurrences at Byrd Station during the event of June 9, 1968 Journal of Geophysical Research Inan, U., Fraser-Smith, A. C., Helliwell, R. A. 1980
  • Photometrically detected precipitation bursts at the conjugate point of Siple Station Antarctic Journal Inan, U. 1980
  • VLF pulse propagation in the magnetosphere IEEE Transactions on Antennas and Propagation Inan, U., Chang, D. C., Helliwell, R. A. 1980
  • First simultaneous observations of magnetospheric plasma drifts by the whistler and incoherent scatter radar methods Antarctic Journal Inan, U., Carpenter, D. L., Miller, R., Gonzales, A., Kelley, M., Wand, R. H. 1980
  • Power-Line Radiation Science Inan, U., Park, C. G., Helliwell, R. A. 1980
  • On possible causes of apparent longitudinal variations in OGO 3 observations of VLF chorus Journal of Geophysical Research Inan, U., Russell, C.  . 1980
  • Correlation between lambda 4278-A optical emissions and a Pc 1 pearl event observed at Siple Station, Antarctica Journal of Geophysical Research Inan, U., Mende, S. B., Arnoldy, L., Cahill Jr., L, Doolittle, J. H., Armstrong, W. C. 1980
  • Side-band mutual interactions in the magnetosphere Journal of Geophysical Research Inan, U., Chang, D. C., Helliwell, R. A., Bell, T. F. 1980
  • Correlation between lambda 4278 optical emissions and VLF wave events observed at L approximately 4 in the Antarctic Journal of Geophysical Research Inan, U., Helliwell, R. A., Doolittle, H., Armstrong, C., Carpenter, D. L., Mende, S. B. 1980
  • Power threshold for growth of coherent VLF signals in the magnetosphere Journal of Geophysical Research Inan, U., Helliwell, R. A., Carpenter, D. L., Miller, R. 1980
  • Simultaneous measurements of ionospheric and magnetospheric electric fields in the outer plasmasphere Geophysical Research Letters Inan, U., Gonzales, C. A., Kelley, C., Carpenter, D. L., Miller, T. R., Wand, R. H. 1980
  • Comparison of ground-based and satellite measurements of plasma densities in space Antarctic Journal Inan, U., Carpenter, D. L., Miller, R., Bell, T. F., Anderson, R. R., Gurnett, D. A. 1980
  • VLF studies at Palmer Station, Antarctica Antarctic Journal Inan, U., Carpenter, D. L., Tkalcevic, S. 1980
  • Characteristics of the common origin of electron microbursts and VLF chorus Antarctic Journal Inan, U., Siren, J. C., Rosenberg, T. J., Detrick, D., Carpenter, D. L. 1980
  • Fast fluctuations in the arrival bearing of magnetospherically propagating signals from the Siple, Antarctica, VLF transmitter Journal of Geophysical Research Inan, U., Carpenter, D. L. 1980
  • Stimulation of Pc 1 geomagnetic pulsations by naturally occurring repetitive VLF activity Geophysical Research Letters Inan, U., Fraser-Smith, A. C., Helliwell, R. A. 1980
  • High altitude satellite observations of signals from the Siple transmitter Antarctic Journal Bell, T. F., Inan, U., Kimura, I., Matsumoto, H. 1980
  • ISEE-1 satellite observations of VLF signals and associated triggered emissions from the Siple Station transmitter, IMS in Antarctica First Int'l. Symposium on IMS in Melbourne Bell, T. F., Inan, U., Helliwell, R. A. 1980
  • Cold plasma diagnostics using ISEE-1 satellite measurements of nonducted VLF waves from Siple Station transmitter Antarctic Journal Inan, U., Bell, T. F. 1979
  • Sunday decreases in magnetospheric VLF wave activity Journal of Geophysical Research Inan, U., Park, C. G., Miller, R. 1979
  • Comparison of two-dimensional and three-dimensional mapping of ionospheric electric field Journal of Geophysical Research Inan, U., Park, C. G. 1979
  • The control of the magnetosphere by power line radiation Journal of Geophysical Research Inan, U., Luette, J. P., Park, C. G., Helliwell, R. A. 1979
  • VLF direction finding from Palmer Station Antarctic Journal Inan, U. 1979
  • Siple station experiments on wave-particle interactions in the magnetosphere Inan, U., Helliwell, R. A. 1979
  • Theory and analysis of the 'Super Whistler' Journal of Geophysical Research Inan, U., Bernhardt, P. A. 1979
  • Emission triggering in the magnetosphere by controlled interruption of coherent VLF signals Journal of Geophysical Research Inan, U., Chang, D., Helliwell, R. A. 1979
  • Effects of power line radiation into the magnetosphere Inan, U., Helliwell, R. A. 1979
  • A model of substorm electric fields in the plasmasphere based on whistler data Journal of Geophysical Research Inan, U., Carpenter, D. L., Park, C. G., Miller, R. 1979
  • ISEE-1 SATELLITE-OBSERVATIONS OF SIGNALS FROM THE SIPLE TRANSMITTER ANTARCTIC JOURNAL OF THE UNITED STATES Inan, U. S., Bell, T. F. 1978; 13 (4): 203-204
  • PITCH ANGLE SCATTERING OF RADIATION BELT PARTICLES BY MAN-MADE WAVES IN MAGNETOSPHERE INAN, U. S., BELL, T. F., HELLIWELL, R. A. AMER GEOPHYSICAL UNION. 1978: 362
  • ENERGETIC PARTICLE PRECIPITATION INDUCED BY GROUND AND SPACE-SHUTTLE BASED VLF TRANSMITTERS INAN, U. S., BELL, T. F., HELLIWELL, R. A. AMER GEOPHYSICAL UNION. 1978: 1160
  • NOVEL-APPROACH FOR FINDING SPECTRUM OF PERIODICALLY MODULATED FM CARRIERS IEEE TRANSACTIONS ON COMMUNICATIONS YAVUZ, D., INAN, U. S. 1978; 26 (8): 1309–15
  • ISEE-1 SATELLITE-OBSERVATIONS OF SIGNALS FROM GROUND VLF TRANSMITTERS BELL, T. F., INAN, U. S., HELLIWELL, R. A. AMER GEOPHYSICAL UNION. 1978: 1159
  • Modeling of VLF ducts in the plasmasphere Operational Modelling of the Aerospace Propagation Environment Inan, U. 1978; 1
  • Jupiter: A new tool for magnetospheric research Antarctic Journal Inan, U., Trabucco, W. J., Paschal, E. W. 1978
  • A novel approach for finding the spectrum of periodically modulated FM carriers IEEE Transactions on Communications Yavuz, D., Inan, U. 1978
  • Siple station experiments on wave-particle interactions in the magnetosphere Inan, U., Helliwell, R. A. 1978
  • {Whistlers and VLF noises propagating just outside the plasmapause} Journal of Geophysical Research Inan, U., Carpenter, D. L. 1978
  • Plasmapause signatures in the ionosphere and magnetosphere Journal of Geophysical Research Inan, U., Foster, J. C., Park, C. G., Brace, H., Maier, E. J., Burrows, J. R. 1978
  • Initial results from a tracking receiver direction finder for whistler mode signals Journal of Geophysical Research Inan, U., Leavitt, M. K., Carpenter, D. L., Seely, T., Padden, R. R., Doolittle, J. H. 1978
  • Nonlinear pitch angle scattering of energetic electrons by coherent VLF waves in the magnetosphere Journal of Geophysical Research Inan, U., Bell, T. F., Helliwell, R. A. 1978
  • Electron density in the plasmasphere - Whistler data on solar cycle, annual, and diurnal variations Journal of Geophysical Research Inan, U., Park, C. G., Carpenter, D. L., Wiggin, B. 1978
  • Introduction, Paper 1 in Upper Atmosphere Research in Antarctica Antarctic Research Series Inan, U., Lanzerotti, L. J., Park, C. G. 1978
  • The Stanford University VLF wave injection experiment on the ISEE-A spacecraft IEEE Transactions on Geoscience Electronics Inan, U., Bell, T. F., Helliwell, R. A. 1978
  • Wave-induced particle precipitation effects at Siple Station XIII Inan, U., Doolittle, J. H., Armstrong, C., Katsufrakis, P., Carpenter, D. L. 1978
  • ISEE-1 satellite observations of signals from the Siple transmitter Antarctic Journal Inan, U., TF, T. F. 1978
  • Island earth in a solar sea Mosaic Inan, U., Lanzerotti, L. J., Park, C. G. 1978
  • Magnetospheric effects of power line radiation Science Inan, U., Park, C. G., Helliwell, R. A. 1978
  • New whistler evidence of a dynamo origin of electric fields in the quiet plasmasphere Journal of Geophysical Research Inan, U., Carpenter, D. L. 1978
  • Very low frequency radio waves in the magnetosphere, Paper 4 in Upper Atmosphere Research in Antarctica Upper Atmosphere Research in Antarctica Inan, U., Park, C. G., Carpenter, D. L. 1978
  • Controlled wave-particle interaction experiments, Paper 5 in Upper Atmosphere Research in Antarctica Upper Atmosphere Research in Antarctica Inan, U., Helliwell, R. A., Katsufrakis, P. 1978
  • Effects of power line radiation into the magnetosphere Inan, U., Helliwell, R. A. 1978
  • Transmitter simulation of power line radiation effects in the magnetosphere Geophysical Research Letters Inan, U., Park, C. G., Chang D, D. 1978
  • Whistler observations of substorm electric fields in the nightside plasmasphere Journal of Geophysical Research Inan, U., Park, C. G. 1978
  • Siple/Roberval magnetospheric wave-wave interaction experiments Antarctic Journal Inan, U., Helliwell, R. A., Chang D, D. 1978
  • NON-LINEAR PITCH ANGLE SCATTERING OF ENERGETIC ELECTRONS BY COHERENT VLF WAVES IN MAGNETOSPHERE JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Inan, U. S., Bell, T. F., Helliwell, R. A. 1978; 83 (NA7): 3235-3253
  • COLD-PLASMA DIAGNOSTICS USING SATELLITE MEASUREMENTS OF VLF SIGNALS FROM GROUND TRANSMITTERS JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Inan, U. S., Bell, T. F., Anderson, R. R. 1977; 82 (7): 1167-1176
  • NONLINEAR PITCH ANGLE AND ENERGY SCATTERING OF ENERGETIC ELECTRONS TRAPPED BY COHERENT VLF WAVES IN MAGNETOSPHERE INAN, U. S., BELL, T. F. AMER GEOPHYSICAL UNION. 1977: 1216
  • SCATTERING OF ENERGETIC ELECTRONS IN MAGNETOSPHERE USING INJECTED VLF WAVES INAN, U. S., BELL, T. F., HELLIWELL, R. A. AMER GEOPHYSICAL UNION. 1977: 468
  • Active Very Low Frequency Experiments on the Magnetosphere from Siple Station, Antarctica Royal Society of London Philosophical Transactions Series B Inan, U., Helliwell, R. A. 1977
  • A comparison of ULF and VLF measurements of magnetospheric cold plasma densities Journal of Geophysical Research Inan, U., Webb, C. D., Lanzerotti, J., Park, C. G. 1977
  • Protonospheric-ionospheric modeling of VLF ducts Journal of Geophysical Research Inan, U., Bernhardt, P. A., Park, C. G. 1977
  • Echo-induced suppression of coherent VLF transmitter signals in the magnetosphere Journal of Geophysical Research Inan, U., Raghuram, R., Bell, T. F., Helliwell, R. A., Katsufrakis, J. P. 1977
  • Longitudinal variations of very-low-frequency chorus activity in the magnetosphere - Evidence of excitation by electrical power transmission lines Geophysical Research Letters Inan, U., Luette, J. P., Park, C. G., Helliwell, R. A. 1977
  • Coherent wave induced particle precipitation into the upper atmosphere Inan, U., Bell, T. F., Helliwell, R. A. 1977
  • Stimulated growth of coherent VLF waves in the magnetosphere Journal of Geophysical Research Inan, U., Stiles, G. S., Helliwell, R. A. 1977
  • Cold plasma diagnostics using satellite measurements of VLF signals from ground transmitters Journal of Geophysical Research Inan, U., Bell, T. F., Anderson, R. 1977
  • A quiet band produced by VLF transmitter signals in the magnetosphere Geophysical Research Letters Inan, U., Raghuram, R., Bell, T. F., Helliwell, R. A., Katsufrakis, J. P. 1977
  • VLF wave activity during a magnetic storm - A case study of the role of power line radiation Journal of Geophysical Research Inan, U., Park, C. G. 1977
  • Spacecraft observations of man-made whistler-mode signals near the electron gyrofrequency Radio Science Inan, U., Dunckel, N., Helliwell, R. A. 1977
  • Whistler precursors - A possible catalytic role of power line radiation Journal of Geophysical Research Inan, U., Park, C. G., Helliwell, R. A. 1977
  • Modification of the propagation characteristics of the ionosphere (and the magnetosphere) by injection into the magnetosphere of whistler-mode waves AGARD Artificial Modification of Propagation Media Inan, U., Helliwell, R. A. 1977; 8: SEE N77-19530 10-42
  • The effects of magnetospheric convection on atmospheric electric fields in the polar cap Garmisch Conference Inan, U., Dejnakarintra, M., Park, C. G. 1977
  • Thundercloud electric field in the ionosphere Garmisch Conference Inan, U., Park, C. G., Dejnakarintra, M. 1977
  • Explorer 45 and Imp 6 observations in the magnetosphere of injected waves from the Siple Station VLF transmitter Journal of Geophysical Research Inan, U., Bell, T. F., Carpenter, D. L., Anderson, R. 1977
  • EXPLORER-45 AND IMP-6 OBSERVATIONS IN MAGNETOSPHERE OF INJECTED WAVES FROM SIPLE STATION VLF TRANSMITTER JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Inan, U. S., Bell, T. F., Carpenter, D. L., Anderson, R. R. 1977; 82 (7): 1177-1187
  • PLASMAPAUSE AS A VLF WAVE GUIDE JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Inan, U. S., Bell, T. F. 1977; 82 (19): 2819-2827
  • Outlying plasmasphere structure detected by whistlers Planetary and Space Science Inan, U., Ho, D., Carpenter, D. L. 1976
  • COHERENT WAVE INDUCED PITCH ANGLE SCATTERING OF ENERGETIC ELECTRONS IN MAGNETOSPHERE INAN, U. S., BELL, T. F. AMER GEOPHYSICAL UNION. 1976: 986
  • Substorm electric fields in the evening plasmasphere and their effects on the underlying F layer Journal of Geophysical Research Inan, U., Park, C. G. 1976
  • Cross-L plasma drifts in the outer plasmasphere - Quiet time patterns and some substorm effects Journal of Geophysical Research Inan, U., Carpenter, D. L., Seely, T. 1976
  • Magnetospheric chorus - Occurrence patterns and normalized frequency Planetary and Space Science Inan, U., Burtis, W. J., Helliwell, R. A. 1976
  • Kilometric type III burst enhancements associated with interplanetary shocks Solar Physics Inan, U., Dunckel, N. 1976
  • Downward mapping of high-latitude ionospheric electric fields to the ground Journal of Geophysical Research Inan, U., Park, C. G. 1976
  • Whistler observations of the dynamical behavior of the plasmapause during June 17-22, 1973 Geophysical Research Letters Inan, U., Park, C. G., Seely, T. 1976
  • Ducted magnetospheric propagation of signals from the Siple, Antarctica, VLF transmitter Journal of Geophysical Research Inan, U., Carpenter, D. L., Miller, R. 1976
  • The upper- and lower-frequency cutoffs of magnetospherically reflected whistlers Journal of Geophysical Research Inan, U., Edgar, B. C. 1976
  • ULF wave generation through particle precipitation induced by VLFtransmitters Journal of Geophysical Research Inan, U., Bell, T. F. 1976
  • Solar magnetic sector effects on the vertical atmospheric electric field at Vostok, Antarctica Geophysical Research Letters Inan, U., Park, C. G. 1976
  • Aftereffects of isolated magnetospheric substorm activity on the mid-latitude ionosphere - Localized depressions in F layer electron densities Journal of Geophysical Research Inan, U., Park, C. G., Meng, C. I. 1976
  • SATELLITE-OBSERVATIONS OF NONDUCTED SIGNALS FROM SIPLE TRANSMITTER ANTARCTIC JOURNAL OF THE UNITED STATES Bell, T. F., Inan, U. 1975; 10 (5): 211-214
  • Fast hisslers in substorms Journal of Geophysical Research Inan, U., Siren, J. C. 1975
  • Depletion of the F2 region ionosphere and the protonosphere by the release of molecular hydrogen Geophysical Research Letters Inan, U., Bernhardt, P. A., Park, C. G., Banks, M. 1975
  • Siple Transmitter signals as diagnostic probes of the magnetosphere Antarctic Journal Inan, U., Carpenter, D. L., Miller, R. 1975
  • Satellite observations of nonducted signals from the Siple transmitter Antarctic Journal Bell, T. F., Inan, U. 1975
  • Frequency-time behavior of artificially stimulated VLF emissions Journal of Geophysical Research Inan, U., Stiles, G. S., Helliwell, R. A. 1975
  • VLF line radiation in the earth's magnetosphere and its association with power system radiation Journal of Geophysical Research Inan, U., Helliwell, R. A., Katsufrakis, P., Bell, T. F., Raghuram, R. 1975
  • A subauroral and mid-latitude view of substorm activity Journal of Geophysical Research Inan, U., Carpenter, D. L., Foster, J. C., Rosenberg, T. J., Lanzerotti, L. J. 1975
  • Comment on 'Fast time resolved spectral analysis of VLF banded emissions' by F. V. Coroniti, R. W. Fredricks, C. F. Kennel, and F. L. Scarf Journal of Geophysical Research Inan, U., Stiles, G. S. 1975
  • Magnetospheric chorus - Amplitude and growth rate Journal of Geophysical Research Inan, U., Burtis, W. J., Helliwell, R. A. 1975
  • Whistler observations during a magnetospheric sudden impulse Journal of Geophysical Research Inan, U., Park, C. G. 1975
  • A new interpretation of subprotonospheric whistler characteristics Journal of Geophysical Research Inan, U., Raghuram, R. 1975
  • Reply Journal of Geophysical Research Inan, U., Helliwell, R. A., Crystal, L. 1975
  • Coherent VLF waves in the magnetosphere Royal Society of London Philosophical Transactions Series A Inan, U., Helliwell, R. A. 1975
  • Influence of thermal plasma flow on the daytime F2 layer Journal of Geophysical Research Inan, U., Park, C. G., Banks, M. 1975
  • Influence of thermal plasma flow on the mid-latitude nighttime F2 layer - Effects of electric fields and neutral winds inside the plasmasphere Journal of Geophysical Research Inan, U., Park, C. G., Banks, M. 1974
  • 'Hisslers' - Quasi-periodic /T approximately equal to 2 sec/ VLF noise forms at auroral latitudes Journal of Geophysical Research Inan, U., Ungstrup, I. M., Carpenter, D. L. 1974
  • VLF Wave Injection Into the MagnetosphereF rom Siple Station, Antarctica JOURNAL OF GEOPHYSICAL RESEARCH Inan, U., Helliwell, R. A. 1974
  • Some Features of Plasma Distribution in the Plasmasphere Deduced From Antarctic Whistlers Journal of Geophysical Research Inan, U., Park, C. G. 1974
  • Notes on Broadband whistler measurements of electric fields and associated phenomena, reprint from Memoirs of National institute of Polar Research, Tokyo Inan, U., Carpenter, D. L. 1974
  • VLF Antarctic antenna: Impedance and efficiency IEEE Transactions on Antennas and Propagation Inan, U., Raghuram, R., Smith, R., Bell, T. F. 1974
  • Derivation of magnetospheric electric fields from whistler data in a dynamic geomagnetic field. Journal of Geophysical Research Inan, U., Block, L. P., Carpenter, D. L. 1974
  • Simultaneous Electric Field Measurements Near L = 4 From Conjugate Balloons and Whistlers Journal of Geophysical Research Inan, U., Mozer, F. S., Serlin, R., Carpenter, D. L., Siren, J. 1974
  • A morphological study of substorm-associated disturbances in the ionosphere. Journal of Geophysical Research Inan, U., Park, C. G. 1974
  • Controlled VLF Experiments ELF-VLF Radio Wave Propagation Inan, U., Stiles, G. S. 1974
  • Controlled VLF Wave Injection Experiments in the Magnetosphere Space Science Reviews Inan, U., Helliwell, R. A. 1974
  • Lightning-Induced Electric Fields in the Ionosphere Journal of Geophysical Research Inan, U., Dejnakarintra, M., Park, C. G. 1974
  • Balloon and VLF Whistler Measurements of Electric Fields, Equatorial Electron Density, and Precipitating Particles during a Barium Cloud Release in the Magnetosphere Journal of Geophysical Research Inan, U., Mozer, F. S., Carpenter, D. L. 1973
  • On input impedance of an arbitrarily oriented small loop antenna in a cold collisionless magnetoplasma IEEE Transactions on Antennas and Propagation Inan, U., Wang, T., Bell, T. F. 1973
  • Interaction between Whistlers and Quasi-Periodic VLF Emissions Journal of Geophysical Research Inan, U., Ho, D. 1973
  • A Feedback Model of Cyclotron Interaction between Whistler-Mode Waves and Energetic Electrons in the Magnetosphere Journal of Geophysical Research Inan, U., Helliwell, R. A., Crystal, L. 1973
  • On what ionospheric workers should know about the plasmapause-plasmasphere. Reviews of Geophysics and Space Physics Inan, U., Carpenter, D. L., Park, C. G. 1973
  • Penetration of Thundercloud Electric Fields into the Ionosphere and Magnetosphere, 1. Middle and Subauroral Latitudes Journal of Geophysical Research Inan, U., Park, C. G., Dejnakarintra, M. 1973
  • A new nose extension method for whistlers Journal of Atmospheric and Terrestrial Physics Inan, U., Bernard, L. C. 1973
  • A fast method to determine the nose frequency and minimum group delay of a whistler when the causative spheric is unknown Journal of Atmospheric and Terrestrial Physics Inan, U., Ho, D., Bernard, C. 1973
  • Satellite studies of magnetospheric substorms on August 15, 1968. Some features of magnetospheric convection. Journal of Geophysical Research Inan, U., Carpenter, D. L., Chappell, R. 1973; 3
  • Distortions of the nightside ionosphere during magnetospheric substorms. Journal of Geophysical Research Inan, U., Park, C. G., Meng, I. 1973
  • Electron Concentrations Calculated from the Lower Hybrid Resonance Noise Band Observed by Ogo 3 Journal of Geophysical Research Inan, U., Burtis, W. J. 1973
  • Whistler-Induced Amplitude Perturbation in VLF Propagation Journal of Geophysical Research Inan, U., Helliwell, R. A., Katsufrakis, P., Trimpi, L. 1973
  • Whistler Observations of the Depletion of the Plasmasphere duringa Magnetospheric Substorm Journal of Geophysical Research Inan, U., Park, C. G. 1973
  • Two substorm studies of relations between westward electric fields in the outer plasmasphere, auroral activity, and geomagnetic perturbations. Journal of Geophysical Research Inan, U., Carpenter, D. L., Akasofu, S. I. 1972
  • VLF/ELF input impedance of an arbitrarily oriented loop antenna in a cold collisionless multicomponent magnetoplasma IEEE Transactions on Antennas and Propagation Inan, U., Wang, T., Bell, T. F. 1972
  • Ogo 4 Observations of Extremely Low Frequency Hiss Journal of Geophysical Research Inan, U., Muzzio, J. L., Angerami, J. J. 1972
  • Type III Solar Noise Observed below 100 kHz on OGO 3. I. Description of Events Solar Physics Inan, U., Dunckel, N., Helliwell, R. A., Vesecky, J. 1972
  • Auroral hiss-Observation of brief bursts showing whistler-mode dispersion Nature Inan, U., Siren, J. C. 1972
  • Magnetospheric Electric Fields Deduced from Drifting Whistler Paths Journal of Geophysical Research Inan, U., Carpenter, D. L., Stone, K., Siren, C., Crystal, T. L. 1972
  • Electric dipole radiation at VLF in a uniform warm magnetoplasma Rev. de Physique Appliquee Inan, U., Wang, T. N., Bell, T. F. 1972
  • La plasmasphere en periode de recouvrement manetique. Etude combinee des donnees des satellites OGO-4, OGO-5 et des sifflements recus au sol Ann Geophys. Inan, U., Corcuff, Y., Corcuff, P., Carpenter, D. L., Charppell, C. R., Kleimenova, N. 1972
  • The structure of the plasmasphere on the basis of indirect measurements. The Upper Atmosphere: Part IV of Solar-Terrestrial Physics/1970 Inan, U., Helliwell, R. A. 1972
  • VLF/ELF Radiation Patterns of Arbitrarily Oriented Electric and Magnetic Dipoles in a Cold Lossless Multicomponent Magnetoplasma Journal of Geophysical Research Inan, U., Wang, T. N., Bell, T. F. 1972
  • The formation by electric fields of field-aligned irregularities in the magnetosphere Radio Science Inan, U., Park, C. G., Helliwell, R. A. 1971
  • Vertical Motions of the Midlatitude F2 Layer during Magnetospheric Substorms Journal of Geophysical Research Inan, U., Park, C. G., Meng, C. I. 1971
  • Pulsation Phenomena Observed in Long-Duration VLF Whistler-Mode Signals Journal of Geophysical Research Inan, U., Bell, T. F., Helliwell, R. A. 1971
  • Study of Magnetospheric Field Oriented Irregularities{\mdash}the Mode Theory of Bell-Shaped Ducts Radio Science Inan, U., Scarabucci, R. R., Smith, L. 1971
  • Ogo 2 and 4 VLF Observations of the Asymmetric Plasmapause near the Time of SAR Arc Events Journal of Geophysical Research Inan, U., Carpenter, D. L. 1971
  • Westward electric fields as the cause of nighttime enhancements in electron concentrations in midlatitude F region. Journal of Geophysical Research Inan, U., Park, C. G. 1971
  • Position of the Plasmapause during a Stormtime Increase in Trapped Energetic (E {\gt} 280 kev) Electrons Journal of Geophysical Research Inan, U., Carpenter, D. L., Park, C. G., Arens, F., Williams, D. J. 1971
  • Radiation resistance of a small filamentary loop antenna in a cold multicomponent magnetoplasma IEEE Transactions on Antennas and Propagation Inan, U., Bell, T. F., Wang, T. 1971
  • Correlation between Convection Electric Fields in the Nightside Magnetosphere and Several Wave and Particle Phenomena during Two Isolated Substorms Journal of Geophysical Research Inan, U., Carpenter, D. L., Fraser-Smith, C., Unwin, S., Hones Jr., E, W, Heacock, R. R. 1971
  • Electron Precipitation Associated with Discrete Very-Low-Frequency Emissions Journal of Geophysical Research Inan, U., Rosenberg, T. J., Helliwell, R. A., Katsufrakis, P. 1971
  • Very-low-frequency magnetospheric research in the Antarctic Res. in the Antarctic Inan, U., Helliwell, R. A. 1971
  • On VLF radiation resistance of an electric dipole in a cold magnetoplasma Radio Science Inan, U., Wang, T. N., Bell, T. F. 1970
  • Low-frequency noise observed in the distant magnetosphere with OGO 1. Journal of Geophysical Research Inan, U., Dunckel, N., Ficklin, B., Rorden, L., Helliwell, R. A. 1970
  • Whistler Evidence of the Dynamic Behavior of the Duskside Bulge in the Plasmasphere Journal of Geophysical Research Inan, U., Carpenter, D. L. 1970
  • Whistler Duct Properties Deduced from VLF Observations Made with the Ogo 3 Satellite near the Magnetic Equator Journal of Geophysical Research Inan, U., Angerami, J. J. 1970
  • Polarization of Proton Whistlers Journal of Geophysical Research Inan, U., Smith, R. L. 1970
  • Satellite observations of equatorial phenomena and defocusing of VLF electromagnetic waves. Journal of Geophysical Research Inan, U., Scarabucci, R. R. 1970
  • Whistler evidence of large-scale electron-density irregularities in the plasmasphere. Journal of Geophysical Research Inan, U., Park, C. G., Carpenter, D. L. 1970
  • Whistler Observations of the Interchange of Ionization between the Ionosphere and the Protonosphere Journal of Geophysical Research Inan, U., Park, C. G. 1970
  • The upper atmosphere as seen from Antarctica Bulletin of the Atomic Scientists Inan, U., Helliwell, R. A. 1970
  • Intensity of Discrete VLF Emissions Particles and Field in the Magnetosphere Inan, U., Helliwell, R. A. 1970
  • Remarks on the ground-based whistler method of studying the magnetospheric thermal plasma Ann. Geophys. Inan, U., Carpenter, D. L. 1970
  • Banded chorus - A new type of VLF radiation observed in the magnetosphere by OGO 1 and OGO 3. Journal of Geophysical Research Inan, U., Burtis, W. J., Helliwell, R. A. 1969
  • Radiation resistance of a short dipole immersed in a cold magnetoionic medium Radio Science Inan, U., Wang, T. N., Bell, T. F. 1969
  • Low-frequency waves in the magnetosphere. Reviews of Geophysics and Space Physics Inan, U., Helliwell, R. A. 1969
  • Unique Features of VLF Noise Triggered in the Magnetosphere by Morse-Code Dots from NAA Journal of Geophysical Research Inan, U., Lasch, S. 1969
  • An Investigation of Quasi-Periodic VLF Emissions Journal of Geophysical Research Inan, U., Kitamura, T., Jacobs, A., Watanabe, T., Flint Jr., R, B 1969
  • Nonducted Mode of VLF Propagation between Conjugate Hemispheres; Observations on OGO's 2 and 4 of the `Walking-Trace' Whistler and of Doppler Shifts in Fixed Frequency Transmissions Journal of Geophysical Research Inan, U., Walter, F., Angerami, J. J. 1969
  • On VLF radiation fields along the static magnetic field from sources immersed in a magnetoplasma IEEE Transactions on Antennas and Propagation Inan, U., Wang, T. N., Bell, T. F. 1969
  • VLF Observations of Auroral Beams as Sources of a Class of Emissions Nature Inan, U., Smith, R. L. 1969
  • whistler measurements of the equatorial profile of magnetospheric electron density Progress in radio Science Inan, U., Carpenter, D. L. 1969: 1960-1963
  • Multi-experiment detection of the plasmapause from EOGO satellites and antarctic ground stations. Journal of Geophysical Research Inan, U., Carpenter, D. L., Park, C. G., Taylor Jr., H, Brinton, H. C. 1969
  • A Case of Artificial Triggering of VLF Magnetospheric Noise during the Drift of a Whistler Duct across Magnetic Shells Journal of Geophysical Research Inan, U., Carpenter, D. L., Stone, K., Lasch, S. 1969
  • Latitudinal Cutoff of VLF Signals in the Ionosphere Journal of Geophysical Research Inan, U., Heyborne, R. L., Smith, L., Helliwell, R. A. 1969
  • Ion Depletion in the High-Latitude Exosphere; Simultaneous OGO 2 Observations of the Light Ion Trough and the VLF Cutoff Journal of Geophysical Research Inan, U., Taylor Jr., H  , A, Brinton, C., Carpenter, D. L., Bonner, F. M., Heyborne, R. L. 1969
  • Whistler-Mode Emissions on the OGO 1 Satellite Journal of Geophysical Research Inan, U., Dunckel, N., Helliwell, R. A. 1969
  • Plasma Waves in Space and in the Laboratory Plasma Waves in Space and in the Laboratory Inan, U. 1969
  • An Effect of a Transmitter Frequency Increase on the Occurrence of VLF Noise Triggered near L = 3 in the Magnetosphere Journal of Geophysical Research Inan, U., Carpenter, D. L., Lasch, S. 1969
  • Unducted Whistler Evidence for a Secondary Peak in the Electron Energy Spectrum near 10 Kev Journal of Geophysical Research Inan, U., Thorne, R. M. 1968
  • Alouette 1 and 2 Observations of Abrupt Changes in Whistler Rate and of VLF Noise Variations at the Plasmapause; A Satellite-Ground Study Journal of Geophysical Research Inan, U., Carpenter, D. L., Walter, F., Barrington, E., McEwen, D. J. 1968
  • Artificial Production of VLF Hiss Journal of Geophysical Research Inan, U., Bell, T. F. 1968
  • A comment on ray tracing in an anisotropic medium Radio Science Inan, U., Smith, R. L. 1968
  • Magnetospheric Properties Deduced from OGO 1 Observations of Ducted and Nonducted Whistlers Journal of Geophysical Research Inan, U., Smith, R. L., Angerami, J. J. 1968
  • Whistlers and VLF Emissions Physics of the Magnetosphere Inan, U., Helliwell, R. A. 1968
  • Ion Cutoff Whistlers Journal of Geophysical Research Inan, U., Muzzio, J. L. 1968
  • Investigation of Quasi-periodic VLF Emissions and their relation to Geomagnetic Micropulsations Nature Inan, U., Kitamura, T. 1968
  • Ducted Whistler-Mode Propagation in the Magnetosphere: A Half-Gyrofrequency Upper Intensity Cutoff and Some Associated Wave Growth Phenomena Journal of Geophysical Research Inan, U., Carpenter, D. L. 1968
  • Recent research on the magnetospheric plasmapause Radio Science Inan, U., Carpenter, D. L. 1968
  • Interpretation of Auroral Hiss Measured on OGO 2 and at Byrd Station in Terms of Incoherent Cerenkov Radiation Journal of Geophysical Research Inan, U., Jørgensen, T. S. 1968
  • Triggering of VLF Magnetospheric Noise by a Low-Power ({\tilde}100 Watts) Transmitter Journal of Geophysical Research Inan, U., Kimura, I. 1968
  • The propagation of electromagnetic waves into anisotropic media from an external point-dipole source Radio Science Inan, U., Price, G. H. 1967
  • A Theory of Discrete VLF Emissions from the Magnetosphere Journal of Geophysical Research Inan, U., Helliwell, R. A. 1967
  • Direct detection by a Whistler method of the magnetospheric electric field associated with a polar substorm Planetary and Space Science Inan, U., Carpenter, D. L., Stone, K. 1967
  • Relations between the Dawn Minimum in the Equatorial Radius of the Plasmapause and Dst, Kp, and Local K at Byrd Station Journal of Geophysical Research Inan, U., Carpenter, D. L. 1967
  • Lower Hybrid Resonance Noise and a New Ionospheric Duct Journal of Geophysical Research Inan, U., Smith, R. L., Kimura, I., Vigneron, J., Katsufrakis, J. P. 1966
  • Midlatitude Observations of Nighttime VLF Signal-Amplitude Anomalies Associated with Magnetic Bays Journal of Geophysical Research Inan, U., Carpenter, G. B., Katsufrakis, P., Kimura, I. 1966
  • Whistler Studies of the Plasmapause in the Magnetosphere, 1, Temporal Variations in the Position of the Knee and Some Evidence on Plasma Motions near the Knee Journal of Geophysical Research Inan, U., Carpenter, D. L. 1966
  • Very-low-frequency phenomena Antarctic Journal of U.S. Inan, U., Carpenter, D. L., Helliwell, R. A. 1966
  • Association between VLF Emissions and Flickering Aurora Journal of Geophysical Research Inan, U., Ungstrup, E. 1966
  • VLF noise of magnetospheric origin, Progress in Scientific Radio National Academy of Sciences Publ Inan, U., Helliwell, R. A. 1966: 1963-1966
  • Whistler Studies of the Plasmapause in the Magnetosphere, 2, Electron Density and Total Tube Electron Content near the Knee in Magnetospheric Ionization Journal of Geophysical Research Inan, U., Angerami, J. J., Carpenter, D. L. 1966
  • Effects of ions on whistler-mode raytracing Radio Science Inan, U., Kimura, I. 1966
  • Ion Cyclotron Whistlers Journal of Geophysical Research Inan, U., Gurnett, D. L., Shawhan, D., Brice, N. M., Smith, R. L. 1965
  • Generation of VLF radio noise in the ionosphere by energetic particle streams Space Research V, North Holland Publ. Co., Amsterdam Inan, U., Helliwell, R. A. 1965
  • Nose whistler dispesion as a measure of magnetosphere electron temperature Radio Science Inan, U., Guthart, H. 1965
  • An anisotropic electron velocity distribution for the cyclotron absorption of whistlers and VLF emissions Radio Science Inan, U., Guthart, H. 1965
  • Lower Hybrid Resonance Emissions Journal of Geophysical Research Inan, U., Brice, N. M., Smith, L. 1965
  • Electron density and path latitude determination from v.l.f. emissions Journal of Atmospheric and Terrestrial Physics Inan, U., Brice, N. M. 1965
  • An Interpretation of Transverse Whistlers Journal of Geophysical Research Inan, U., Kimura, I., Smith, L., Brice, N. M. 1965
  • Rept. of the Chairman of Commission IV (Radio Noise of Terrestrial Origin) Progress in Radio Science Inan, U., Helliwell, R. A. 1965: 1960-63
  • Daytime Whistler-Mode Attenuation through the Lower Ionosphere at 15.5 Kc as Measured on Explorer VI during Launch Trajectory NASA Special Publication Inan, U., Mlodnosky, R. F., Helliwell, R. A., Rorden, H. 1965
  • A Dispersion Anomaly in Whistlers Received on Alouette 1 Journal of Geophysical Research Inan, U., Carpenter, D. L., Dunckel, N. 1965
  • Multiphase periodic very-low-frequency emissions Radio Science Inan, U., Brice, N. M. 1965
  • Studies of Planetary Atmospheres, 1, The Distribution of Electrons and Ions in the Earth's Exosphere Journal of Geophysical Research Inan, U., Angerami, J. J., Thomas, O. 1964
  • Recordings from Satellite Alouette I: Triggered Very-low-frequency Emissions Nature Inan, U., Brice, N. M., Smith, L. 1964
  • Very Low Frequency Emission Periods and Whistler Mode Group Delays Journal of Geophysical Research Inan, U., Helliwell, Brice, N. M. 1964
  • Natural Electromagnetic phenomena Below 30 kc/s Plenum press Inan, U., Katsufrakis, J. P. 1964
  • Maximum Duration of Discrete Very Low Frequency Emissions Journal of Geophysical Research Inan, U., Brice, N. M. 1964
  • Whistlers and VLF Emissions Research in Geophysics, Upper Atmosphere, and Space Inan, U., Helliwell, R. A. 1964; 1
  • Whistlers, U. S. National Committee Rept. on URSI XIV th General Assembly, Tokyo, Sept. 1963 Radio Science Inan, U., Carpenter, D. L. 1964
  • Artificially Stimulated Very Low Frequency Radiation from the Ionosphere Journal of Geophysical Research Inan, U., Helliwell, R. A., Katsufrakis, P., Trimpi, L., Brice, N. M. 1964
  • Propagation in Multicomponent Plasmas Journal of Geophysical Research Inan, U., Smith, R. L., Brice, N. M. 1964
  • Whistler Measurements of Electron Density in the Magnetosphere Reviews of Geophysics Inan, U., Carpenter, D. L., Smith, L. 1964
  • Langmuir Probe Response to Periodic Waveforms Journal of Geophysical Research Inan, U., Crawford, F. W., Mlodnosky, F. 1964
  • Recordings from Satellite Alouette I: A Very-low-frequency Plasma Resonance Nature Inan, U., Brice, N. M., Smith, L. 1964
  • Electron Density at the Alouette Orbit Journal of Geophysical Research Inan, U., Thomas, J. O., Sader, Y. 1964
  • A New Very Low Frequency Phenomenon: Whistlers Trapped below the Protonosphere Journal of Geophysical Research Inan, U., Carpenter, D. L., Dunckel, N., Walkup, F. 1964
  • A Qualitative Explanation of the Diurnal Variation of Chorus Journal of Geophysical Research Inan, U., Brice, N. M. 1964
  • Fundamentals of Very Low Frequency Emission Generation Mechanisms Journal of Geophysical Research Inan, U., Brice, N. M. 1964
  • An Explanation of Subprotonospheric Whistlers Journal of Geophysical Research Inan, U., Smith, R. L. 1964
  • Plasma Instability in the Whistler Mode Caused by a Gyrating Electron Stream Physical Review Inan, U., Bell, T. F., Buneman, O. 1964
  • An Ion Gyrofrequency Phenomenon observed in Satellites Nature Inan, U., Smith, R. L., Brice, N. M., Katsufrakis, P. 1964
  • Time Reversal of the Geocyclotron Mechanism Journal of Geophysical Research Inan, U., Bell, T. F. 1964
  • Coupling between the ionosphere and the earth-ionosphere waveguide at very low frequencies The Ionosphere Inan, U., Helliwell, R. A. 1963
  • Whistler Measurements of Electron Density and Magnetic Field Strength in the Remote Magnetosphere Journal of Geophysical Research Inan, U., Carpenter, D. L. 1963
  • Whistlers Excited by Nuclear Explosions Journal of Geophysical Research Inan, U., Helliwell, R. A., Carpenter, D. L. 1963
  • An Interpretation of LOFTI-I very-low-frequency observations Pergamon Press Inan, U., Rorden, L. H., Helliwell, R. A., Smith, R. L. 1963: 75-81
  • Comments on a paper by H. Unz, ''On the origin of [`]very low frequency emissions'' Journal of Atmospheric and Terrestrial Physics Inan, U., Brice, N. M., Smith, L. 1963
  • Whistler Evidence of a `Knee' in the Magnetospheric Ionization Density Profile Journal of Geophysical Research Inan, U., Carpenter, D. L. 1963
  • Use of `local Mean Auroral Time' for Very-Low-Frequency Emissions Nature Inan, U., Brice, N. M., Ungstrut, E. 1963
  • Comments on the Magnetoinic theory for a drifting plasma IEEE Transactions on Antennas and Propagation Inan, U., Bell, T. F., Smith, L., Brice, N. M. 1963
  • An Explanation of Triggered Very-Low-Frequency Emissions Journal of Geophysical Research Inan, U., Brice, N. M. 1963
  • On a Remarkable Correlation between Whistler-Mode Propagation and High-Frequency Northscatter Journal of Geophysical Research Inan, U., Carpenter, G. B., Colin, L. 1963
  • Whistler-Triggered Periodic Very-Low-Frequency Emissions Journal of Geophysical Research Inan, U., Helliwell, R. A. 1963
  • The v.l.f. admittance of a dipole in the lower ionosphere The Ionosphere Inan, U., Mlodnosky, R. F., Garriott, K. 1963
  • Whistler and Other Very-Low-Frequency Phenomena Associated with the High-Altitude Nuclear Explosion on July 9, 1962 Journal of Geophysical Research Inan, U., Allcock, G. M., Branigan, K., Mountjoy, C., Helliwell, R. A. 1963
  • Discussion of Paper by R. L. Dowden, `Doppler-Shifted Cyclotron Radiation from Electrons: A Theory of Very Low Frequency Emissions from the Exosphere' Journal of Geophysical Research Inan, U., Brice, N. M. 1962
  • Electron-Density Variations in the Magnetosphere Deduced from Whistler Data Journal of Geophysical Research Inan, U., Carpenter, D. L. 1962
  • Very-Low-Frequency Discrete Emissions received at Conjugate Points Nature Inan, U., Dowden, R. L. 1962
  • New Experimental Evidence of the Effect of Magnetic Storms on the Magnetosphere Journal of Geophysical Research Inan, U., Carpenter, D. L. 1962
  • Whistler-west results from the IGY-IGC-59 synoptic program Trans. AGU Inan, U., Helliwell, R. A., Carpenter, D. L. 1962
  • Non-thermal noise measurements near planets Int'l Astrophys. Symp. on the physics of Planets Inan, U., Mlodnosky, R. F., Carpenter, D. L., Helliwell, R. A. 1962
  • Graphic Data on the Earth's Main Magnetic Field in Space Journal of Geophysical Research Inan, U., Mlodnosky, R. F., Helliwell, R. A. 1962
  • Properties of the Outer Ionosphere Deduced from Nose Whistlers Journal of Geophysical Research Inan, U., Smith, R. L. 1961
  • Computation of whistler ray paths J. Res. NBS. D. Radio Prop. Inan, U., Yabroff, I. W. 1961
  • Stanford-Pacific Naval Laboratory Conjugate Point Experiment Nature Inan, U., Lokken, J. E., Shand, A., Wright, S. 1961
  • Propagation Characteristics of Whistlers Trapped in Field-Aligned Columns of Enhanced Ionization Journal of Geophysical Research Inan, U., Smith, R. L. 1961
  • The International Geophysical Month Science Inan, U., Helliwell, R. A., Martin, H. 1961
  • Electron Densities in the Outer Ionosphere Deduced from Nose Whistlers Journal of Geophysical Research Inan, U., Smith, R. L. 1961
  • Extension of Nose Whistler Analysis Journal of Geophysical Research Inan, U., Smith, R. L., Carpenter, D. L. 1961
  • Exospheric electron density variations deduced from whistlers Symposium d'Aéronomie Communications Inan, U., Helliwell, R. A. 1961
  • Summary of research on whistlers and related phenomena J. Res. NBS Inan, U., Helliwell, R. A. 1960
  • A Theory of Trapping of Whistlers in Field-Aligned Columns of Enhanced Ionization Journal of Geophysical Research Inan, U., Smith, R. L., Helliwell, R. A., Yabroff, W. 1960
  • Association between Auroræ and Very Low-Frequency Hiss Observed at Byrd Station, Antarctica Nature Inan, U., Martin, L. H., Helliwell, R. A. 1960
  • A New Mechanism for Accelerating Electrons in the Outer Ionosphere Journal of Geophysical Research Inan, U., Helliwell, R. A., Bell, T. F. 1960
  • Traveling Wave Amplification of Whistlers Journal of Geophysical Research Inan, U., Brice, N. M. 1960
  • Observations of `Whistlers' and `Chorus' at the South Pole Nature Inan, U., Martin, L. H. 1960
  • Guiding of whistlers in a homogeneous medium J. Res. NBS-D, Radio Propagation Inan, U., Smith, R. L. 1960
  • Electron Densities to 5 Earth Radii Deduced from Nose Whistlers Journal of Geophysical Research Inan, U., Smith, R. L., Helliwell, R. A. 1960