Department of Atmospheric Sciences
1301 W. Green St.
Urbana, IL 61801
The dance of air and sea is what weather is all about.
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 am developing 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.
- Tropical Mesoscale Cloud Processes
- Satellite Remote Sensing
- High-Resolution Global and Regional Modeling
I am using Python as a programming tool extensively to create the ideal environment to study the space-borne scatterometers (ASCAT, RapidSCAT), precipitation (CMORPH, GPM, TRMM) and reanalyses (MERRA-2, ERA-5) datasets. I also ran a regional simulation over Indian Ocean using WRF-ARW at 9-3-1 km horizontal resolution to resolve MJO-attributed cold pools. I am currently working on understanding the cold pool processes using a global cloud-resolving model (SAM, ICON) at 2-4 km horizontal resolution from DYnamics of the Atmospheric general circulation Modeled On Non-hydrostatic Domains (DYAMOND) dataset in collaboration with Prof. Steve Krueger (University of Utah). I was also involved with forecasting for Clouds, Aerosols, Monsoon Processes-Philippines Experiment (CAMP2Ex) during summer-fall 2019 and currently working on validation of ASCAT-identified cold pools with NASA P-3 and Learjet observed cold pools. Using a combination of these products would help us in narrowing down the mesoscale processes responsible for convective aggregation over tropical oceans, which would in turn help us in improving our current global and regional models.
- Research Fellow, Indian Institute of Tropical Meteorology, Pune, India (August 2015 to January 2016)
- M.Sc Atmospheric Sciences, Savitribai Phule Pune University, Pune, India & Indian Institute of Tropical Meteorology, Pune, India (2013-2015)
- B.Sc Physical Sciences, Hans Raj College, University of Delhi, Delhi, India (2010-2013)
- NASA Ocean Vector Winds Science Team Grant NNH17ZDA001N-OVWST: 2017-2021
Using Satellite-Measured Ocean Vector Winds to Determine Cold Pool Characteristics and Their Relationships to Tropical Convective Variability 17-OVWST-17-0019
- National Science Foundation Extreme Science and Engineering Discovery Environment (XSEDE) Grant on Stampede-2: 2017-2019
High-Resolution WRF Simulations of Tropical Convection and associated Cold Pools in the Indian Ocean | TG-ATM170026