Earth  ID: 13345

NASA Remasters Nearly 20 Years of Global Rain

NASA has just released its newest and most comprehensive estimate of rain and snow covering nearly 20 years. Version 6 of NASA's IMERG -- the Integrated Multi-satellitE Retrievals for Global Precipitation Measurement (GPM) -- combines information from a constellation of satellties are operating in Earth orbit, at a given time, to estimate precipitation over the majority of the Earth's surface. This algorithm is particularly valuable over the majority of the Earth's surface that lacks precipitation-measuring instruments on the ground. What is new in Version 6 IMERG is that the algorithm can now fuse the early precipititation estimates collected in 2000-2014 during the operation of the TRMM satellite with more recent precipitation estimates collected during operation of the GPM satellite. The longer the record, the more valuable it is, as researchers and application developers will attest. TRMM and GPM are two satellites specially designed to provide the most reliable space-based estimates of preciptiation, and both satellites are joint missions between NASA and the Japan Aerospace Exploration Agency (JAXA).
 

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http://gpm.nasa.gov


Credits

Ryan Fitzgibbons (USRA): Lead Producer
George Huffman (NASA/GSFC): Lead Scientist
Dalia B Kirschbaum (NASA/GSFC): Lead Scientist
Ryan Fitzgibbons (USRA): Lead Writer
Joy Ng (USRA): Lead Producer
Alex Kekesi (GST): Lead Visualizer
Rob Andreoli (AIMM): Lead Videographer
John Caldwell (AIMM): Lead Videographer
Ryan Fitzgibbons (USRA): Lead Editor
Joy Ng (USRA): Lead Narrator
George Huffman (NASA/GSFC): Lead Interviewee
Horace Mitchell (NASA/GSFC): Lead Visualizer
Jackson Boon Sze Tan (USRA): Visualizer
Please give credit for this item to:
NASA's Goddard Space Flight Center

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Mission:
Global Precipitation Measurement (GPM)

This item is part of this series:
Narrated Movies

Keywords:
DLESE >> Atmospheric science
SVS >> Rainfall
GCMD >> Earth Science >> Atmosphere >> Precipitation
NASA Science >> Earth
SVS >> IMERG

GCMD keywords can be found on the Internet with the following citation: Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 8.0.0.0.0