A paper co-authored by ESSIC/CISESS Assistant Research Scientists Sarah Ringerud and Yalei You was selected as the winner of the IEEE Geoscience and Remote Sensing Society 2020 Transactions Prize Paper Award. The paper, titled “An Active–Passive Microwave Land Surface Database From GPM”, is also by lead author S. Joseph Munchak and co-authors Ludovic Brucker, Iris de Gelis, and Catherine Prigent.
In the study, the researchers apply a microwave emissivity retrieval to five years of global precipitation measurement (GPM) microwave imager (GMI) observations over land and sea ice. They colocated the emissivities with GPM’s dual-frequency precipitation radar (DPR) surface backscatter measurements in clear-sky conditions. The emissivity-backscatter database is used to characterize surfaces within the GPM orbit for precipitation retrieval algorithms and other applications.
Ringerud received her B.S. in Mathematics and Atmospheric and Oceanic Sciences from the University of Wisconsin-Madison, and the M.S. and Ph.D from Colorado State University. Research interests include remote sensing of the global hydrologic cycle, atmospheric radiation, radiative transfer modeling, and surface emissivity retrieval and modeling. Recent research is focused on precipitation algorithm development for satellite passive microwave sensors as part of the Global Precipitation Measurement (GPM) algorithm teams. Ringerud currently specializes in retrievals over land and understanding of dynamic surface conditions from a radiometric perspective.
You received his B.S. and M.S. degrees in atmospheric science from Yunnan University, Kunming, Yunnan, China, in 2005 and 2008, respectively, and the Ph.D. degree in meteorology from Florida State University, Tallahassee, FL, USA, in 2013. He is currently an Assistant Research Scientist with the Earth System Science Interdisciplinary Center (ESSIC) and the Cooperative Institute for Satellite Earth System Studies (CISESS)-Maryland, University of Maryland (UMD), College Park, MD, USA. His research interests include passive microwave precipitation algorithm development, precipitation data set validation, and microwave instrument calibration. You has served as an Associate Editor for the Journal of Hydrometeorology and the Journal of Applied Meteorology and Climatology.
To access the paper, click here: “An Active–Passive Microwave Land Surface Database From GPM”.