Dr. Pawan Gupta is a Research Scientist at the Goddard Earth Sciences Technology and Research (GESTAR), Universities Space Research Association. He has completed his Ph.D. in Atmospheric Sciences from the University of Alabama in Huntsville. He focused on retrieval of particulate matter air quality at the surface from satellite observations during his time in graduate school. His main research expertise is in the application of satellite remote sensing for air quality monitoring and assessment around the world. He is also interested in research on air quality in growing mega cities, spatial and temporal trends in aerosols over urban regions, radiative effects of aerosols, development of statistical models to estimate surface level particulate matter air quality, aerosols and clouds data validation and retrieval of cloud products from satellite measurements. Dr. Gupta currently works with OMI and MODIS science team on development and validation of surface and aerosols products for air quality and climate applications. He also currently participates in developing and conducting remote sensing technical workshops and capacity building activities for the NASA Applied Sciences Program, where he teaches the application of satellite imagery to environmental decision-making activities, with a focus on surface air quality.