Global Precipitation Measurement

It is part of NASA's Earth Systematic Missions program and works with a satellite constellation to provide full global coverage.

The project is managed by NASA's Goddard Space Flight Center, and consists of a GPM Core Observatory satellite assisted by a constellation of spacecraft from other agencies and missions.

[3] Agencies in the United States, Japan, India and France (together with Eumetsat) operate the remaining satellites in the constellation for agency-specific goals, but also cooperatively provide data for GPM.

[2] GPM has five broad science objectives:[4] The DPR is a spaceborne radar, providing three-dimensional maps of storm structure across its swath, including the intensity of rainfall and snowfall at the surface.

A Precipitation Education website[17] is also maintained to provide teachers and students with lesson plans, animations, and other resources to teach about the water cycle, Earth science, and the GPM mission.

[32] A short anime film of 6 minutes, Dual frequency Precipitation Radar Special Movie, was produced by JAXA and White Fox in 2013.

Visualization of GPM collecting data on March 17th, 2014 over the last major snow storm of winter 2013–2014 to hit the U.S. east coast.
The GPM Core Observatory in the electromagnetic testing chamber at NASA Goddard Space Flight Center in March 2013. The silver disc and drum (center) is the GPM Microwave Imager, and the large block on the base is the Dual-frequency Precipitation Radar.
Full-Scale Harness Mockup Model of the Core GPM Spacecraft being used for harness assembly inside the Acoustic Chamber at GSFC .
This animation shows GPM collecting some of its first data on March 10th over a Pacific storm east of Japan.