GPM Level 1 Science Requirements: Science and Performance Viewed from the Ground

Walter Arthur Petersen1, Pierre Kirstetter2, David B Wolff3, Christopher Kidd4, Ali Tokay5, V Chandrasekar6, Patrick N Gatlin1, Mircea Grecu7, George John Huffman8 and Gail Skofronick Jackson9, (1)NASA Marshall Space Flight Center, Huntsville, AL, United States, (2)University of Oklahoma Norman Campus, Norman, United States, (3)NASA Goddard Space Flight Center Wallops Flight Facility, Code 610W, Wallops Island, United States, (4)Earth System Science Interdisciplinary Center, College PARK, MD, United States, (5)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (6)Cooperative Institute for Research in the Atmosphere, Fort Collins, United States, (7)Morgan State University, Baltimore, MD, United States, (8)NASA Goddard Space Flight Center, Greenbelt, United States, (9)NASA Headquarters, Washington, DC, United States