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Gail Skofronick-Jackson

GPM Project Scientist and Mesoscale Atmospheric Processes Lab Chief, NASA Goddard Space Flight Center

Let it Rain and Snow: Two Years of NASA's Global Precipitation Measurement (GPM) Mission Data

Room 811 AOSS, February 22, 2016, 3:30 PM


Water is fundamental to life on Earth. Knowing where and how much rain and snow fall globally is vital to understanding how weather and climate impact our Earth's water and energy cycles. The Global Precipitation Measurement (GPM) Core Observatory spacecraft, a partnership with the Japanese, launched February 28, 2014. The GPM instruments are designed to extend the capabilities of the Tropical Rainfall Measuring Mission (TRMM, 1997-2015) by providing global and regional three dimensional measurements of precipitation for scientific investigations and societal benefit. GPM is an international satellite mission to unify and advance precipitation measurements from a constellation of partner satellite sensors to provide next-generation precipitation products everywhere every 3 hours (or less). As a science mission with integrated application goals, GPM will also help to monitor water resources, improve forecasting of extreme weather events that lead to floods, droughts, and landslides. Since launch, GPM has provided unprecedented views of typhoons, extratropical systems, light rain, snowstorms and extreme precipitation. This presentation will include new imagery and scientific insights resulting from the two years of GPM data, an overview of the mission concept and science activities, updates on algorithm status and performance, together with information on international collaborations for radiometer inter-calibration and ground validation. Extra information will be provided on the complexities of estimating falling snow.

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