TRMM Home Page

The Tropical Rainfall Measuring Mission (TRMM) is a joint mission between NASA and the Japan Aerospace Exploration Agency (JAXA) designed to measure rainfall for weather and climate research.

TRMM is a research satellite designed to improve our understanding of the distribution and variability of precipitation within the tropics as part of the water cycle in the current climate system. By covering the tropical and sub-tropical regions of the Earth, TRMM provides much needed information on rainfall and its associated heat release that helps to power the global atmospheric circulation that shapes both weather and climate. In coordination with other satellites in NASA's Earth Observing System, TRMM provides important precipitation information using several space-borne instruments to increase our understanding of the interactions between water vapor, clouds, and precipitation, that are central to regulating Earth's climate.

Extreme Weather News

Tornadoes Hit Southwest
Seven Tornadoes were reported yesterday in a line of violent thunderstorms extending over Oklahoma and Arkansas. One death was reported in a...
Cyclone Nathan Dissipates
The GPM core observatory satellite saw dissipating cyclone Nathan when it flew over Australia's Top End on March 24, 2015 at 0256 UTC. Nathan...
Cross-Calibration team (PMM)
Cyclone Nathan located in the Coral Sea off Australia's Queensland coast has made another loop and is again headed slowly toward the Cape York...
As one of the strongest cyclones every recorded in the South Pacific, Cyclone Pam devastated the island archipelago of Vanuatu. As the cyclone...
GPM And TRMM See GLENDA At Same Time
Tropical storm GLENDA formed over the open waters of the South Indian Ocean southeast of Diago Garcia on February 24, 2015. GLENDA didn't get above...
Tropical Cyclone Eunice
Tropical cyclone Eunice became the fourth tropical cyclone of the 2015 Southern Indian Ocean season when it formed well east of Madagascar on...

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