GPM GPROF: Daily Global Satellite Precipitation Estimates for Climate Studies

Version 07 is the current climate-reference product, superseding older versions. This dataset provides global gridded daily precipitation averages derived from the AMSR-2 radiometer on the GCOM-W1 satellite, processed using the GPROF algorithm with homogeneous ECMWF-Interim reanalysis data. It is produced by the National Aeronautics and Space Administration and hosted by the GES DISC.

Use Cases

• Climate trend analysis based on climate-referenced precipitation retrievals
• Validating climate models based on global gridded daily precipitation averages
• Studying atmospheric water vapor and hydrometeor distribution based on microwave sensor sensitivity
• Producing homogeneous climate time series based on the use of consistent ECMWF-Interim ancillary data

Strengths

• Uses high-quality microwave sensors sensitive to liquid and ice-phase precipitation
• Provides climate-reference products with homogeneous ancillary data for consistent time series
• Data is at a 0.25 degree x 0.25 degree spatial resolution
• Last metadata update was 2026-03-13

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• Ancillary data from ECMWF-Interim has a 2-3 month lag behind regular production

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Retrievals from the AMSR-2 radiometer on the GCOM-W1 satellite, processed by the GPROF algorithm.

Time Range

Daily temporal resolution.

Freshness

Last updated 2026-03-13 02:30:31.706200; freshness should be verified

Geography

Global coverage.