Professor Thomas T. Wilheit proposes to continue his research on understanding the uncertainties in the retrieval of oceanic precipitation from passive microwave measurements and to participate in the development of the next generation passive microwave rainfall algorithm, by determining the brightness temperature uncertainties needed for weighting in the planned parametric Bayesian retrieval algorithm and other roles as needed and appropriate. Broadly speaking, this proposal addresses Strategic Goal 3.1 "Study planed Earth from space to advance scientific understanding and meet societal needs". Specifically, this proposal falls under category 1.2 "Retrieval Algorithms, Validation, and Multisatellite Precipitation Analysis" "Important Topics (1) Improvement of current facility algorithms for the retrieval of precipitation from satellite observations, including multi-instrument and multisatellite algorithms, (5) Development of physical and statistical validation techniques and products for current satellite-based precipitation products, including development and improvement of surface-based comparison products and...(7) Development of a new core satellite reference algorithm and new parametric passive microwave retrieval algorithms for a constellation of diverse radiometer instruments."
