About me

Pursuing a Masters in atmospheric sciences from Pune University (India) provided me an insight to look into this beautiful realm of weather and climate sciences. While doing my masters’ thesis at Indian Institute of Tropical Meteorology, Pune (India), I came across some really interesting and complex heavy precipitation events over western ghats in India and I tried to understand the large scale synoptic conditions, which in association with the local mesoscale activity might have induced such extreme precipitation events on such a short temporal scale. Furthermore, I tried to tune Betts-Miller-Janjic (BMJ), which is a cumulus parametrization scheme in WRF model, which in turn gave me a better hindcast of those events by improving the convection initiation in the model.

With this background, I joined Cloud Systems Research Group with Prof. Steve Nesbitt as a Ph.D. Student in January 2016. I developed an algorithm to identify and characterize the cold pools over tropical oceans using horizontal wind gradient tensor field, so as to represent them better in our global climate models. This work is primarily funded through NASA Ocean Vector Winds Science Team in collaboration with Dr. Timothy Lang (NASA MSFC), and focuses on improving our understanding of tropical mesoscale storm processes over oceans. I recently graduated from the Ph.D. program in June 2021.

After graduating from UIUC, I joined the Hydroclimatology lab at the Department of Environmental Sciences, University of Virginia as a postdoctoral research associate and worked with Prof. Kathleen Schiro. My postdoctoral work focused on understanding the role of cold pools in the lifecycle of thunderstorms using a range of satellites, numerical models, and artificial intelligence techniques.

I started as a Postdoctoral Scientist at Argonne National Laboratory, Lemont, IL in January 2022. Here I am a part of Artificial Intelligence Emulator Assisted Data Assimilation (AIEADA) project within Climate and Earth System Science, Environmental Sciences (EVS) division of Computing, Environment and Life Sciences Directorate (CELS). I am working on improving the representation of convective and radiative processes in Department of Energy’s (DOE) Energy Exascale Earth System Model (E3SM).

Contact: pgarg@anl.gov, pgarg7@illinois.edu

Department of Atmospheric Science Directory PageĀ 

Schiro Lab, Department of Environmental Sciences, University of Virginia

Argonne National Laboratory Personnel Page

I with two of my colleagues were recently featured in a New York Times Magazine Article describing RELAMPAGO-CACTI field campaign project activities!!!

Courtesy: New York Times Magazine RELAMPAGO Article