Paul A Rosen is currently Project Scientist for NASA-ISRO synthetic aperture radar mission (NISAR) at the Jet Propulsion Laboratory (JPL), and is a JPL Fellow and Senior Research Scientist. He is also the study coordinator for NASA’s Surface Deformation and Change Decadal Survey Architecture Study. Until 2012, he was the manager of the Radar Science and Engineering Section and Project Scientist for the DESDynI Mission concept at the Jet Propulsion Laboratory. He has been particularly active in understanding the phenomenology and scientific potentials of interferometric SAR and has led a number of research initiatives in data analysis and the development of software tools and techniques. Dr. Rosen was the team leader for Algorithm Development and Verification on the Shuttle Radar Topography Mission, for which he received NASA's Exceptional Service Medal (2001) and NASA's Exceptional Achievement Medal (2002).