J. Marshall Shepherd

Goddard Space Flight Center, University of Georgia

Papers

Total Citations

214

H-Index

About

Dr. J. Marshall Shepherd is a leading authority in atmospheric sciences, renowned for his groundbreaking research at the intersection of urban environments, weather, and climate. His key research areas include urban precipitation, land-atmosphere interactions, and the impacts of aerosols on weather systems. Shepherd’s major contributions have fundamentally advanced our understanding of how cities modify rainfall and temperature. His seminal 2005 study on urban aerosols in New York and Houston, which has garnered 148 citations, used NASA MODIS satellite data to reveal distinct diurnal and seasonal patterns of aerosol variability and their influence on cloud and rainfall processes. Further, his 2010 work (66 citations) demonstrated the urban aerosol direct effect—showing how pollution particles can reduce surface temperatures by scattering sunlight, a critical insight for urban heat island mitigation. A former NASA Deputy Project Scientist for Global Precipitation Measurement, Shepherd is a Fellow of the American Meteorological Society and a highly sought-after communicator on climate science. His research, with over 148 citations on his top work alone, continues to shape urban climate policy and weather prediction models worldwide.