Stanford Doerr School of Sustainability
Showing 1-100 of 102 Results
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Aakash Ahamed
Staff, Department of Geophysics - Knight Program
Research Assistant, Geophysics Faculty ProgramsBioAakash Ahamed (BS, with honors, Franklin and Marshall College; MSc, Boston College; PhD, Stanford University) is a remote sensing scientist developing methods for satellite, airborne, and ground-based instruments to measure components of the water and carbon cycles. His research has applications in water resources and natural hazards as well as agricultural and forest systems. His doctoral work focused on developing satellite-based models of groundwater mass changes in California's aquifers. Aakash previously worked as a support scientist in the Hydrological Sciences Lab at NASA Goddard Space Flight Center, where he constructed satellite-based models of flood and landslide hazards. He has also developed remote sensing software at Ceres Imaging, a successful precision agriculture start up based in Silicon Valley, served as a National Geographic Explorer, and interned as a GIS analyst at the World Wildlife Fund for Nature in Washington, DC.
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Greg Beroza
Wayne Loel Professor of Earth Science
Current Research and Scholarly InterestsEarthquake seismology
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Biondo Biondi
Barney and Estelle Morris Professor
On Leave from 09/01/2023 To 08/31/2024Current Research and Scholarly InterestsResearch
My students and I devise new algorithms to improve the imaging of reflection seismic data. Images obtained from seismic data are the main source of information on the structural and stratigraphic complexities in Earth's subsurface. These images are constructed by processing seismic wavefields recorded at the surface of Earth and generated by either active-source experiments (reflection data), or by far-away earthquakes (teleseismic data). The high-resolution and fidelity of 3-D reflection-seismic images enables oil companies to drill with high accuracy for hydrocarbon reservoirs that are buried under two kilometers of water and up to 15 kilometers of sediments and hard rock. To achieve this technological feat, the recorded data must be processed employing advanced mathematical algorithms that harness the power of huge computational resources. To demonstrate the advantages of our new methods, we process 3D field data on our parallel cluster running several hundreds of processors.
Teaching
I teach a course on seismic imaging for graduate students in geophysics and in the other departments of the School of Earth Sciences. I run a research graduate seminar every quarter of the year. This year I will be teaching a one-day short course in 30 cities around the world as the SEG/EAGE Distinguished Instructor Short Course, the most important educational outreach program of these two societies.
Professional Activities
2007 SEG/EAGE Distinguished Instructor Short Course (2007); co-director, Stanford Exploration Project (1998-present); founding member, Editorial Board of SIAM Journal on Imaging Sciences (2007-present); member, SEG Research Committee (1996-present); chairman, SEG/EAGE Summer Research Workshop (2006) -
Jef Caers
Professor of Earth and Planetary Sciences and, by courtesy, of Geophysics
Current Research and Scholarly InterestsMy research focuses on assuring 100% renewable energy through development of geothermal energy and critical mineral supply, developing approaches from data acquisition to decision making under uncertainty and risk assessment.
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Clark Michael Campagna
Student Svcs Offcr 2, Geophysics
BioClark Campagna serves as a Student Services Officer for the dual and joint MS students in Stanford's E-IPER program. Prior to joining Stanford, Clark served as a Program Assistant for two master-level programs at the University of San Francisco. As a student services professional, Clark enjoys hearing about students' goals and passions, and working with them to make the most of their time at Stanford. Clark holds a BA in Political Science from UC San Diego and both an MPA and MA in Higher Education Administration from the University of San Francisco. When not at work, Clark enjoys road cycling, running, cooking, and spending time with friends.
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Jon Claerbout
Cecil H. and Ida M. Green Professor of Geophysics, Emeritus
Current Research and Scholarly InterestsReflection Seismology
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Simone D'Amico
Associate Professor of Aeronautics and Astronautics and, by courtesy, of Geophysics
BioSimone D’Amico is Associate Professor of Aeronautics and Astronautics (AA), W.M. Keck Faculty Scholar in the School of Engineering, and Professor of Geophysics (by Courtesy). He is the Founding Director of the Space Rendezvous Laboratory and Director of the AA Undergraduate Program. He received the B.S. and M.S. degrees from Politecnico di Milano (2003) and the Ph.D. degree from Delft University of Technology (2010). Before Stanford, Dr. D’Amico was research scientist and team leader at the German Aerospace Center (DLR) for 11 years. There he gave key contributions to formation-flying and proximity operations missions such as GRACE (NASA/DLR), PRISMA (OHB/DLR/CNES/DTU), TanDEM-X (DLR), BIROS (DLR) and PROBA-3 (ESA). His research aims at enabling future miniature distributed space systems for unprecedented remote sensing, space and planetary science, exploration and spaceflight sustainability. To this end he performs fundamental and applied research at the intersection of advanced astrodynamics, spacecraft Guidance, Navigation and Control (GNC), autonomy, decision making and space system engineering. Dr. D’Amico is institutional PI of three upcoming autonomous satellite swarm missions funded by NASA and NSF, namely STARLING, VISORS, and SWARM-EX. He is Fellow of AAS, Associate Fellow of AIAA, Associate Editor of AIAA JGCD, Advisor of NASA and several space startups. He was the recipient of several awards, including Best Paper Awards at IAF (2022), IEEE (2021), AIAA (2021), AAS (2019) conferences, the Leonardo 500 Award by the Leonardo da Vinci Society/ISSNAF (2019), FAI/NAA’s Group Diploma of Honor (2018), DLR’s Sabbatical/Forschungssemester (2012) and Wissenschaft Preis (2006), and NASA’s Group Achievement Award for the GRACE mission (2004).
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Eliza Dawson
Ph.D. Student in Geophysics, admitted Summer 2018
Current Research and Scholarly InterestsI am investigating how changes in the thermal regime at the ice-bed interface could force the Antarctic ice sheet to evolve. My approach combines large scale ice sheet modeling, regional airborne ice-penetrating radar sounding analysis, and the synthesis of the two. Currently, I am using the Ice-sheet and Sea-level system model (ISSM) to learn about basal thaw processes that could drive mass loss and ultimately contribute to sea level rise.
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Iván Deiana
Ph.D. Student in Geophysics, admitted Autumn 2023
BioPh.D. student in Geophysics at Stanford Earth Imaging Project (SEP). My research interests include Geophysical Inverse Problems, Quantitative Interpretation, and Earth Imaging, all integrated with HPC and ML methodologies.
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Eric Dunham
Professor of Geophysics
Current Research and Scholarly InterestsPhysics of natural hazards, specifically earthquakes, tsunamis, and volcanoes. Computational geophysics.
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William Ellsworth
Professor (Research) of Geophysics, Emeritus
BioMy research interests can be broadly defined as the study of active faults, the earthquakes they generate and the physics of the earthquake source. A major objective of my work is to improve our knowledge of earthquake hazards through the application of physics-based understanding of the underlying processes. As Co-Director of the Stanford Center for Induced and Triggered Seismicity, my students, postdocs and I conduct multi-disciplinary studies into the causes and consequences of anthropogenic earthquakes in a wide variety of settings. I have also long been committed to earthquake risk reduction, specifically through the transfer of scientific understanding of the hazard to people, businesses, policymakers and government agencies. Before coming to Stanford in 2015, I was a research geophysicist at the U. S. Geological Survey in Menlo Park, California for more than 40 years where I focused on problems of seismicity, seismotectonics, probabilistic earthquake forecasting, and earthquake source processes
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Meredith Goebel
Physical Sci Res Scientist
BioMeredith Goebel primary interests center on the application of geophysical methods for addressing problems surrounding the evaluation and management of groundwater resources. She currently serves as a Research Scientist at Stanford University, developing methods for integrating new datasets into groundwater models to improve their accuracy and utility, specifically in California’s Central Valley. In addition to this work, she is also involved in number of projects investigating new tools for groundwater recharge site assessment in the Central Valley.
Meredith completed her PhD in Geophysics at Stanford University, working with electrical and electromagnetic geophysical methods to map and monitor saltwater intrusion at both the lab and field scale. The field scale research for her PhD was conducted along the coast of the Monterey Bay, mapping the distribution of fresh and salt water in the subsurface both onshore and offshore along the bay. Prior to starting at Stanford she got her BA in Geophysics from UC Berkeley, and interned in the seismology group at Lawrence Livermore National Laboratory. -
Stephan Graham
Welton Joseph and Maud L'Anphere Crook Professor of Applied Earth Sciences & by courtesy, of Geophysics & of Energy Science Engineering
Current Research and Scholarly InterestsSedimentary basin analysis; petroleum geology
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Jerry Harris
The Cecil H. and Ida M. Green Professor in Geophysics, Emeritus
Current Research and Scholarly InterestsBiographical Information
Jerry M. Harris is the Cecil and Ida Green Professor of Geophysics and Associate Dean for the Office of Multicultural Affairs. He joined Stanford in 1988 following 11 years in private industry. He served five years as Geophysics department chair, was the Founding Director of the Stanford Center for Computational Earth and Environmental Science (CEES), and co-launched Stanford's Global Climate and Energy Project (GCEP). Graduates from Jerry's research group, the Stanford Wave Physics Lab, work in private industry, government labs, and universities.
Research
My research interests address the physics and dynamics of seismic and electromagnetic waves in complex media. My approach to these problems includes theory, numerical simulation, laboratory methods, and the analysis of field data. My group, collectively known as the Stanford Wave Physics Laboratory, specializes on high frequency borehole methods and low frequency labratory methods. We apply this research to the characterization and monitoring of petroleum and CO2 storage reservoirs.
Teaching
I teach courses on waves phenomena for borehole geophysics and tomography. I recently introduced and co-taught a new course on computational geosciences.
Professional Activities
I was the First Vice President of the Society of Exploration Geophysicists in 2003-04, and have served as the Distinguished Lecturer for the SPE, SEG, and AAPG. -
Leo Hollberg
Professor (Research) of Physics and of Geophysics
On Leave from 10/01/2023 To 12/31/2023BioHow can we make optimal use of quantum systems (atoms, lasers, and electronics) to test fundamental physics principles, enable precision measurements of space-time and when feasible, develop useful devices, sensors, and instruments?
Professor Hollberg’s research objectives include high precision tests of fundamental physics as well as applications of laser physics and technology. This experimental program in laser/atomic physics focuses on high-resolution spectroscopy of laser-cooled and -trapped atoms, non-linear optical coherence effects in atoms, optical frequency combs, optical/microwave atomic clocks, and high sensitivity trace gas detection. Frequently this involves the study of laser noise and methods to circumvent measurement limitations, up to, and beyond, quantum limited optical detection. Technologies and tools utilized include frequency-stabilized lasers and chip-scale atomic devices. Based in the Hansen Experimental Physics Laboratory (HEPL), this research program has strong, synergistic, collaborative connections to the Stanford Center on Position Navigation and Time (SCPNT). Research directions are inspired by experience that deeper understanding of fundamental science is critical and vital in addressing real-world problems, for example in the environment, energy, and navigation. Amazing new technologies and devices enable experiments that test fundamental principles with high precision and sometimes lead to the development of better instruments and sensors. Ultrasensitive optical detection of atoms, monitoring of trace gases, isotopes, and chemicals can impact many fields. Results from well-designed experiments teach us about the “realities” of nature, guide and inform, occasionally produce new discoveries, frequently surprise, and almost always generate new questions and perspectives. -
Samantha Hordyk
Masters Student in Geophysics, admitted Autumn 2022
BioI recently graduated from Reed College with a physics degree and am now pursing a Master's in Geophysics at Stanford University, advised by Prof. Jenny Suckale. My research interests lie in numerical modeling of environmental fluids, and the fundamental multi-phase physics of natural systems. In all my work, I am committed to creating a safer and more resilient world.
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Seogi Kang
Physical Sci Res Scientist
Current Research and Scholarly InterestsTo construct basis of groundwater sustainability plan in California, we develop an effective workflow that can map 3D hydrogeology of the subsurface by using airborne electromagnetic data that can cover large area fast.
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Zerina Kapetanovic
Assistant Professor of Electrical Engineering and, by courtesy, of Computer Science and of Geophysics
BioZerina Kapetanovic is an Assistant Professor in the Department of Electrical Engineering at Stanford University working in the area of low-power wireless communication, sensing, and Internet of Things (IoT) systems. Prior to starting at Stanford, Kapetanovic was a postdoctoral researcher at Microsoft Research in the Networking Research Group and Research for Industry Group.
Kapetanovic's research has been recognized by the Yang Research Award, the Distinguished Dissertation Award from the University of Washington, and is a Terman Faculty Fellow. She also received the Microsoft Research Distinguished Dissertation Grant and was selected to attend the 2020 UC Berkeley Rising Stars in EECS Workshop. Kapetanovic completed her PhD in Electrical Engineering from the University of Washington in 2022. -
Simon Klemperer
Professor of Geophysics and, by courtesy, of Earth and Planetary Sciences
Current Research and Scholarly InterestsI study the growth, tectonic evolution, and deformation of the continents. My research group undertakes field experiments in exemplary areas such as, currently, the Tibet plateau (formed by collision between Indian and Asia); the actively extending Basin-&-Range province of western North America (the Ruby Range Metamorphic Core Complex, NV, and the leaky transform beneath the Salton Trough, CA). We use active and passive seismic methods, electromagnetic recording, and all other available data!
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Rosemary Knight
The George L. Harrington Professor in the School of Earth Sciences, Professor of Geophysics and Senior Fellow at the Woods Institute for the Environment
Current Research and Scholarly InterestsEnvironmental geophysics
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Robert Kovach
Professor of Geophysics, Emeritus
Current Research and Scholarly InterestsEarthquake seismology, natural hazards, and ancient earthquakes and archaeology
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Ching-Yao Lai
Assistant Professor of Geophysics
BioMy group attacks fundamental questions in ice-dynamics, geophysics, and fluid dynamics by integrating mathematical and machine-learned models with observational data. We use our findings to address challenges facing the world, such as advancing our scientific knowledge of ice dynamics under climate change. The length scale of the systems we are interested in varies broadly from a few microns to thousands of kilometers, because the governing physical principles are often universal across a range of length and time scales. We use mathematical models, simulations, and machine learning to study the complex interactions between fluids and elasticity and their interfacial dynamics, such as multiphase flows, flows in deformable structures, and cracks. We extend our findings to tackle emerging topics in climate science and geophysics, such as understand the missing physics that governs the flow of ice sheets in a warming climate. We welcome collaborations across disciplinary lines, from geophysics, engineering, physics, applied math to computer science, since we believe combining expertise and methodologies across fields is crucial for new discoveries.
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Matthew Edward Lees
Ph.D. Student in Geophysics, admitted Autumn 2018
BioI work on using geophysics to monitor and interpret hydrologically-induced surface deformation in and around California's Central Valley. My research focuses on improving our understanding of land subsidence induced by groundwater extraction, as well as more subtle surface deformation due to hydrologic loading. I have additional interest in sustainable groundwater management around the world, and how geophysics can be used to help tackle pressing hydrologic issues of the 21st century.
Before coming to Stanford, I studied a Masters in Earth Sciences at the University of Cambridge (2013-17) and spent time as a hydrogeologist at the International Centre for Integrated Mountain Development, ICIMOD (2017).
Additional information about me and my research can be found at my personal website and on the GEM Center site, please see links to the right. My personal website is the most likely to be up to date. -
Haipeng Li
Ph.D. Student in Geophysics, admitted Autumn 2022
BioHaipeng Li is a Ph.D. student in the Stanford Exploration Project (SEP), beginning in the fall of 2022. His research interests include studying the Earth's interior structures with seismic inversion and imaging methods. He focuses on investigating Distributed Acoustic Sensing in full-waveform inversion to resolve real-life problems including CO2 sequestration, hydrocarbon exploration, and urban environment monitoring. Also, He is exploiting high-performant numerical algorithms and SciML surrogates for seismic wavefield simulation across scales and medical imaging with ultrasounds.
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Ethan Lopes
Ph.D. Student in Geophysics, admitted Autumn 2021
BioEthan is an experimental geophysicist interested in using paleomagnetism to elucidate questions pertaining to ancient Mars's magnetic field. As a PhD candidate, his current work involves the study of magnetic mineral production via fluid-rock interactions.
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Margariete Malenda
Ph.D. Student in Geophysics, admitted Spring 2020
Masters Student in Geophysics, admitted Autumn 2019BioPlease refer to my CV for a full listing of conference presentations, publications, research projects (internships and degree-oriented) and outreach.
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Gerald Mavko
Professor (Research) of Geophysics, Emeritus
Current Research and Scholarly InterestsResearch
I work to discover and understand the relationship between geophysical measurements and the rock and fluid properties that they sample in the Earth. My students and I have begun to understand the impact of rock type, porosity, pore fluids, temperature, and stress on seismic wave propagation and electromagnetic response. We are also working to quantify the links between geophysical measurements and the sedimentary and diagenetic processes that determine rock mineralogy and texture. Ultimately, this work allows us to better infer, from geophysical images, the composition and physical conditions at depth.
Teaching
I teach courses for graduate and undergraduate students on rock physics--the study of the physical properties of rocks and how they can be detected and mapped using seismic and electrical methods. This includes theory, laboratory measurements, and field data analysis. I also lead seminars in which students present and critique their ongoing research in rock physics.
Professional Activities
Associate chair, Department of Geophysics (2006-2008); distinguished lecturer, Society of Exploration Geophysicists (2006); honorary membership, Society of Exploration Geophysicists (2001); nominated for Reginald Fessenden Award, Society of Exploration Geophysicists (2000); School of Earth Sciences Excellence in Teaching Award (2000) -
Rosalyn McCambridge
Rsch Admstr 3, Geophysics
Current Role at StanfordResearch Administrator 3
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Tapan Mukerji
Professor (Research) of Energy Science Engineering, of Earth and Planetary Sciences and of Geophysics
On Leave from 09/01/2023 To 08/31/2024Current Research and Scholarly InterestsMy students and I use theoretical, computational, and statistical models, to discover and understand fundamental relations between geophysical data and subsurface properties, to quantify uncertainty in our geomodels, and to address value of information for decision making under uncertainty.
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Artemii Novoselov
Postdoctoral Scholar, Geophysics
BioDr. Artemii Novoselov is a postdoctoral research fellow at the Department of Geophysics at Stanford University. He holds a PhD in geophysics and computer science from the University of Vienna, where he focused on wave physics, specifically the seismic and acoustic properties of lightning. His research has resulted in several publications and he has been awarded grants from Nvidia and Google.
In addition to his research, Dr. Novoselov has experience in teaching and has received several awards and honors for his work. He is also the co-chair of the Postdoc advisory council to the Dean of the School of Sustainability. -
Amos Nur
Wayne Loel Professor of Earth Sciences, Emeritus
Current Research and Scholarly InterestsRock physics, tectonophysics, fossil energy exploration, earthquake archaeology
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Karissa Pepin
Physical Sci Res Scientist
Current Research and Scholarly InterestsKarissa explores the use of interferometric synthetic aperture radar (InSAR), a remote sensing tool that measures mm-scale surface deformation at a resolution of 5-20 m, to study the subsurface response to fluid extraction and injection at wells, including induced seismicity, aquifer compaction, and changes in fluid flow. She also studies the InSAR signal with the goal of generating accurate time series.
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Dustin Schroeder
Associate Professor of Geophysics, of Electrical Engineering and Senior Fellow at the Woods Institute for the Environment
BioMy research focuses on advancing the scientific and technical foundations of geophysical ice penetrating radar and its use in observing and understanding the interaction of ice and water in the solar system. I am primarily interested in the subglacial and englacial conditions of rapidly changing ice sheets and their contribution to global sea level rise. However, a growing secondary focus of my work is the exploration of icy moons. I am also interested in the development and application of science-optimized geophysical radar systems. I consider myself a radio glaciologist and strive to approach problems from both an earth system science and a radar system engineering perspective. I am actively engaged with the flow of information through each step of the observational science process; from instrument and experiment design, through data processing and analysis, to modeling and inference. This allows me to draw from a multidisciplinary set of tools to test system-scale and process-level hypotheses. For me, this deliberate integration of science and engineering is the most powerful and satisfying way to approach questions in Earth and planetary science.
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Paul Segall
The Cecil H. and Ida M. Green Professor of Geophysics
On Leave from 10/01/2023 To 12/31/2023Current Research and Scholarly InterestsResearch
I study active earthquake and volcanic process through data collection, inversion, and theoretical modeling. Using methods such as precise Global Positioning System (GPS) positioning and Interferometric Synthetic Aperture Radar (InSAR) we are able to measure deformation in space and time and invert these data for the geometry of faults and magma chambers, and spatiotemporal variations in fault slip-rate and magma chamber dilation. The accumulation of shear strain in tectonic regions provides a direct measure of earthquake potential. Similarly, magma accumulation in the crust prior to eruptions causes measurable inflation. We use these data to develop and test models of active plate boundaries such as the San Andreas, and the Cascade and Japanese subduction zones, the nucleation of earthquakes, slow slip events, induced seismicity, and the physics of magma migration leading to volcanic eruptions. These physics-based models rely on principles and methodologies from solid and fluid dynamics.
Teaching
I teach introductory undergraduate classes in natural hazards and the prediction of volcanic eruptions, as well as graduate level courses on modeling earthquake and volcano deformation and geophysical inverse theory.
Professional Activities
James B. Macelwane Medal, American Geophysical Union (1990); fellow, American Geophysical Union (1990); fellow, Geological Society of America (1997); president, Tectonophysics Section, AGU (2002-04); U.S.G.S. Science of Earthquakes Advisory Committee (2002-06); California Earthquake Prediction Evaluation Committee (2003-07); chair, Plate Boundary Observatory Steering Committee (2003-06); N.S.F. Panel, Instruments and Facilities Program (1997-2000); associate editor, Journal of Geophysical Research (1984-87). William Smith Lecturer, Geological Society of London (2011). Charles A. Whitten Medal, American Geophysical Union (2014), National Academy of Sciences (2016) -
Norman Sleep
Professor of Geophysics, Emeritus
Current Research and Scholarly InterestsPhysics of large-scale processes in the Earth
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Joseph Dalton Stitt
Ph.D. Student in Geophysics, admitted Autumn 2021
Current Research and Scholarly InterestsDeep learning with applications in CO2 Sequestration and DAS
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Jenny Suckale
Assistant Professor of Geophysics, by courtesy, of Civil and Environmental Engineering and Center Fellow, by courtesy, at the Woods Institute for the Environment
BioMy research group studies disasters to reduce the risk they pose. We approach this challenge by developing customized mathematical models that can be tested against observational data and are informed by community needs through a scientific co-production process. We intentionally work on extremes across different natural systems rather than focusing on one specific natural system to identify both commonalities in the physical processes driving extremes and in the best practices for mitigating risk at the community level. Our current research priorities include volcanic eruptions, ice-sheet instability, permafrost disintegration, induced seismicity and flood-risk mitigation. I was recently awarded the Presidential Early Career Awards for Scientists and Engineers, the highest honor bestowed by the United States Government on science and engineering professionals in the early stages of their independent research careers and the CAREER award from the National Science Foundation.
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Sonia Tikoo-Schantz
Assistant Professor of Geophysics and, by courtesy, of Earth and Planetary Sciences
BioI utilize paleomagnetism and fundamental rock magnetism as tools to investigate problems in the planetary sciences. By studying the remanent magnetism recorded within rocks from differentiated planetary bodies, I can learn about core processes that facilitate the generation of dynamo magnetic fields within the Earth, Moon, and planetesimals. Determining the longevities and paleointensities of dynamo fields that initially magnetized rocks also provides insight into the long-term thermal evolution (i.e., effects of secular cooling) of planetary bodies. I also use paleomagnetism to understand impact cratering events, which are the most ubiquitous modifiers of planetary surfaces across the solar system. Impact events produce heat, shock, and sometimes hydrothermal systems that are all capable of resetting magnetization within impactites and target rocks via thermal, shock, and chemical processes. Therefore, I am able to use a combination of paleomagnetic and rock magnetic characterization to investigate shock pressures, temperatures, structural changes, and post-impact chemical alteration experienced by cratered planetary surfaces.
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Tiziana Vanorio
Associate Professor of Earth and Planetary Sciences and, by courtesy, of Civil and Environmental Engineering and of Geophysics
Current Research and Scholarly InterestsRock Physics, Fossil Energy Exploration, Volcanic and Geothermal Environments and Microseismicity
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Shiqi (Axel) Wang
Ph.D. Student in Geophysics, admitted Autumn 2017
BioI am a PhD student in geophysics. My research interest is on high-frequency guided seismic waves primarily in the lithosphere. One application of these waves is to use their amplitude ratios to determine if an earthquake nucleated within the continental mantle.
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Earle Wilson
Assistant Professor of Earth System Science, by courtesy, of Geophysics, of Oceans and Center Fellow, by courtesy, at the Woods Institute for the Environment
BioEarle Wilson is an assistant professor in the Department of Earth System Science. He is a physical oceanographer who studies ocean dynamics at high latitudes and their far-reaching impacts on the global climate. He is particularly interested in the circulation of the Southern Ocean and its interactions with the cryosphere (i.e., sea ice and marine-terminating glaciers). Dr. Wilson and his group explore these research questions using various tools and methods, ranging from in situ ocean observations and idealized numerical models.
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Yifan Yu
Ph.D. Student in Geophysics, admitted Autumn 2022
BioYifan is a PhD student in Geophysics, advised by Prof. Greg Beroza. His research interests include earthquake source study, location, and machine learning. He received bachelor degree in geophysics from Nanjing University.
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Howard Zebker
Professor of Electrical Engineering and of Geophysics
On Leave from 10/01/2023 To 12/31/2023Current Research and Scholarly InterestsResearch
My students and I study the surfaces of Earth and planets using radar remote sensing methods. Our specialization is interferometric radar, or InSAR. InSAR is a technique to measure mm-scale surface deformation at fine resolution over wide areas, and much of our work follows from applying this technique to the study of earthquakes, volcanoes, and human-induced subsidence. We also address global environmental problems by tracking the movement of ice in the polar regions. whose ice mass balance affects sea level rise and global climate. We participate in NASA space missions such as Cassini, in which we now are examining the largest moon of Saturn, Titan, to try and deduce its composition and evolution. Our work includes experimental observation and modeling the measurements to best understand processes affecting the Earth and solar system. We use data acquired by spaceborne satellites and by large, ground-based radar telescopes to support our research.
Teaching
I teach courses related to remote sensing methods and applications, and how these methods can be used to study the world around us. At the undergraduate level, these include introductory remote sensing uses of the full electromagnetic spectrum to characterize Earth and planetary surfaces and atmospheres, and methods of digital image processing. I also teach a freshman and sophomore seminar course on natural hazards. At the graduate level, the courses are more specialized, including the math and physics of two-dimensional imaging systems, plus detailed ourses on imaging radar systems for geophysical applications.
Professional Activities
InSAR Review Board, NASA Jet Propulsion Laboratory (2006-present); editorial board, IEEE Proceedings (2005-present); NRC Earth Science and Applications from Space Panel on Solid Earth Hazards, Resources, and Dynamics (2005-present); Chair, Western North America InSAR (WInSAR) Consortium (2004-06); organizing committee, NASA/NSF/USGS InSAR working group; International Union of Radioscience (URSI) Board of Experts for Medal Evaluations (2004-05); National Astronomy and Ionospheric Center, Arecibo Observatory, Visiting Committee, (2002-04; chair, 2003-04); NASA Alaska SAR Facility users working group (2000-present); associate editor, IEEE Transactions on Geoscience and Remote Sensing (1998-present); fellow, IEEE (1998)
