School of Earth, Energy and Environmental Sciences

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  • Adam Pellegrini

    Adam Pellegrini

    Postdoctoral Research Fellow, Earth System Science

    BioNOAA Climate and Global Change Postdoctoral Fellow working on how fire-plant-nutrient interactions determine the carbon cycle in tropical savannas and forests.

  • Sai Prasanth

    Sai Prasanth

    Postdoctoral Research Fellow, Earth System Science

    BioI am currently a Post-Doctoral Researcher at the Department of Earth System Science, Stanford University. I work with Prof. Morgan O'Neill and my research lies at the crossroads of Tropical Cyclones, Geofluid Dynamics, Monsoon Dynamics, and Complex Systems. I seek to address fundamental, trans-disciplinary research questions pertaining to these areas.

    Prior to joining Stanford, I was a NASA Earth Science Doctoral Fellow at Purdue University. My Ph.D. advisors were Prof. Dan Chavas (Purdue) and Dr. Frank Marks (Hurricane Research Division, NOAA). My doctoral research characterized the impact of vortex-scale and sub-vortex-scale azimuthal asymmetries (eddies) during periods of rapid intensity changes in tropical cyclones (TCs). I investigated the spatial, spectral, and temporal aspects of these asymmetries; developed novel techniques to model the scale-specific stochasticity and cross-scale feedbacks across the vortex-scale and sub-vortex scale eddies within a TC vortex; computed the relative roles of the external and intrinsic drivers of TC rapid intensity changes; and developed a new approach to compute the non-stationary probabilities of TC intensity transitions. From a forecasting perspective, these advancements drive the development of diagnostics or early warning signals that allow us to examine and characterize an asymmetric TC vortex and predict if it is going to rapidly intensify or weaken with x% probability.

    I obtained an M.Sc. in Computational Fluid Mechanics from Imperial College London. For my Master's thesis, I worked under the supervision of Prof. Spencer Sherwin and used High-Order Spectral element techniques to understand the multi-scale transfer of energy in decaying homogeneous turbulence. I have a Bachelors in Mechanical Engineering from SASTRA University, India. I visited MIT to pursue my Bachelor's thesis under the supervision of Prof. Sanjay Sarma. At MIT, I designed, developed, and tested a Contact type, Pressure Difference - based leak detector, that was to be deployed in Public Water Distribution Systems. Prior to that, I was as an Indian Academy of Sciences Research Fellow and I worked with Prof. Gautam Biswas on Computational Vortex-Dynamics and self-sustained oscillatory flows in Heat Exchangers.

    Apart from being a researcher, I am a musician (composer/arranger/producer and a keyboardist), and an avid sports fan (basketball, cricket, soccer). Conversations are my tonic, so please get in touch if you are interested in what I do.