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Next Generation Defense Weather Missions Based on the
Global Precipitation Measurement (GPM) Microwave Imager (GMI) Calibration Standard

Michael Berberich, Ball Aerospace

Next-generation defense weather satellite system require accurate measurements of top-of-atmosphere brightness temperatures to determine ocean surface vector winds, tropical cyclone intensity, and other environmental products necessary to support our war fighters. At Ball Aerospace, we have built the Global Precipitation Measurement (GPM) Microwave Imager (GMI) designed to be the radiometric calibration standard for a group of national and international passive microwave instruments in the GPM constellation. GMI has operated nearly continuously since March 4th,. 2014. This paper presents GMI’s on-orbit performance and calibration results and provides a top-level overview of how the GMI can be leveraged for next-generation defense weather missions.