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Launched by NASA and JAXA in 1997, TRMM carries the first on-orbit active/passive instrument package to study the intensity and structure of tropical rainfall.
An international satellite mission to be launched by NASA and JAXA in 2014 that will set new standards for precipitation measurements worldwide using a network of satellites united by the GPM Core Observatory.
MISSION UPDATES
Thursday, January 31, 2013
The GPM Core Observatory completed thermal vacuum testing at NASA's Goddard Space Flight Center in Greenbelt, Md. on Jan. 16, 2013. After twelve days to carefully remove the testing equipment,...
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Science
Through an advanced set of instruments, TRMM and GPM provide new information on precipitation characteristics and how rain and snow interact within the Earth system. This section explores how space-borne precipitation measurements are acquired, processed, and utilized.
Flight Project
The GPM Flight Project at Goddard Space Flight Center is responsible for the design, development, manufacturing, integration/testing, as well as operations of NASA-provided instruments, spacecraft, ground validation and data processing systems for the GPM mission.
Multimedia
Photos and videos that tell the story of the Precipitation Measurement Missions. Watch the GPM Core Observatory being built and tested at NASA Goddard, learn about the science of measuring precipitation, and more.
Data Access
TRMM provides a collection of rainfall products spanning the period of 1998 to the present. Once the Core Observatory is launched, GPM will provide a set of next-generation precipitation products covering the globe. This section outlines the various ways to query, view, and download these precipitation products.
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