Global Precipitation Measurement (GPM)

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GPM Data Products

Precipitation data from the GPM and TRMM missions is made available free to the public in a variety of formats from several sources at NASA Goddard Space Flight Center. This section outlines the different types of data available, the levels of processing, the sources to download the data, and some helpful tips for utilizing precipitation data in your research. 

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GPM Status Update

GPM Update
Wed, 2014-07-30 2:56 p.m. EDT

The Global Precipitation Measurement (GPM) mission's Precipitation Processing System at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, has released the Level 2 GPM Microwave Imager (GMI) data to the public. The data set includes precipitation rates, which show how much rain and snowfall accumulate over a given time period.

This Level 2 data set of falling rain and snow is computed from Level 1 brightness temperature observations from GMI, the basic measurement made by the instrument of naturally occurring energy radiated, in this case, by precipitation particles (raindrops or snowflakes). Level 1 data were released on June 16. 

Precipitation rates are estimated using the Goddard Profiling algorithm (GPROF14). The Level 2 data set's formal name is GPROF-GMI.

Current and future data sets are available to registered users from NASA Goddard's Precipitation Processing Center website at: http://pps.gsfc.nasa.gov/. To information on registering for this site, visit: http://registration.pps.eosdis.nasa.gov/registration/.

The complete schedule of public data releases is available at: http://pmm.nasa.gov/mission-updates/gpm-news/gpm-data-release-schedule-announced

› Additional GPM mission updates

Mission Overview

Global Precipitation Measurement (GPM) is an international satellite mission that will set a new standard for precipitation measurements from space, providing the next-generation observations of rain and snow worldwide every three hours. The GPM mission data will advance our understanding of the water and energy cycles and extend the use of precipitation data to directly benefit society.

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Page Last Updated: December 18th, 2014
Page Editor: Karl Hille