This is a grant for research awarded by the National Aeronautics and Space Administration (NASA) to Colorado State University (CSU) to evaluate and potentially mitigate errors and uncertainties in the Global Precipitation Measurement (GPM) Satellite's passive microwave rainfall retrieval algorithm (GPROF) over mountainous terrain. The $440,613.50 award will fund a systematic examination of orographic precipitation over the western United States, leveraging ground-based radar, snowpack, and model data to better understand how GPROF performs in diverse meteorological regimes. The research aims to improve GPROF's ability to capture shallow precipitation associated with orography, and to develop more sophisticated uncertainty estimates that account for regime classification issues. There is no set-aside designation for this award, which has a period of performance through July 1, 2023. CSU, a public land-grant research university, has a history of providing research, technical assistance, and educational services to federal agencies through prime and subcontract awards.
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