NASA Logo in the header
Mesoscale Atmospheric Processes
Operational

Global Precipitation Measurement (GPM)

The GPM mission is one of the next generation of satellite-based Earth science missions that study global precipitation (rain, snow, ice). GPM Constellation is a joint mission with the Japan Aerospace Exploration Agency (JAXA) and other international partners. Building upon the success of the Tropical Rainfall Measuring Mission (TRMM), it initiates the measurement of global precipitation, a key climate factor. Its science objectives are: to improve ongoing efforts to predict climate by providing near-global measurement of precipitation, its distribution, and physical processes; to improve the accuracy of weather and precipitation forecasts through more accurate measurement of rain rates and latent heating; and to provide more frequent and complete sampling of the Earth's precipitation. GPM was launched February 27, 2014.

Launch Date

February 2014

Class

Flight Project

Website

Key Staffs

The GPM mission is one of the next generation of satellite-based Earth science missions that study global precipitation (rain, snow, ice). GPM Constellation is a joint mission with the Japan Aerospace Exploration Agency (JAXA) and other international partners. Building upon the success of the Tropical Rainfall Measuring Mission (TRMM), it initiates the measurement of global precipitation, a key climate factor. Its science objectives are: to improve ongoing efforts to predict climate by providing near-global measurement of precipitation, its distribution, and physical processes; to improve the accuracy of weather and precipitation forecasts through more accurate measurement of rain rates and latent heating; and to provide more frequent and complete sampling of the Earth's precipitation. GPM was launched February 27, 2014.

Related Publications

2024. "Oceanic Validation of IMERG-GMI Version 6 Precipitation Using the GPM Validation Network.", Journal of Hydrometeorology, 25 (1): 125-142 [10.1175/jhm-d-23-0134.1] [Journal Article/Letter]

2025. "Understanding Overland Satellite-Based Precipitation Errors in IMERG Products as a Function of Input Sources.", Journal of Hydrometeorology, 26 (8): 1219-1235 [10.1175/jhm-d-25-0047.1] [Journal Article/Letter]

2025. "Better Satellite Precipitation Algorithms Slightly Improved Landslide Hazard Assessment.", Journal of Applied Meteorology and Climatology, 64 (10): 1379-1394 [10.1175/jamc-d-25-0021.1] [Journal Article/Letter]

2025. "Open Inventories of Rainfall‐Triggered Landslides.", Geoscience Data Journal, 12 (4): e70023 [10.1002/gdj3.70023] [Journal Article/Letter]

2024. "Development of a composite drought indicator for operational drought monitoring in the MENA region.", Scientific Reports, 14 (1): 5414 [10.1038/s41598-024-55626-0] [Journal Article/Letter]