GPM SSMI Climate-based Radiometer Precipitation Profiles: Daily 0.25° Grid

Version 07 is the current climate-referenced precipitation data product from NASA's GPM mission. It provides global daily gridded precipitation averages at a 0.25-degree resolution, derived from microwave sensors on the F14 satellite using the GPROF algorithm with homogeneous ECMWF-Interim reanalysis ancillary data. This dataset is designed for climate studies and is produced by the National Aeronautics and Space Administration, last updated in March 2026.

Use Cases

• Climate trend analysis based on homogeneous, climate-referenced precipitation retrievals.
• Validating and calibrating climate models based on global gridded daily precipitation averages.
• Studying atmospheric hydrometeor distribution based on microwave sensor sensitivity to liquid and ice-phase precipitation.

Strengths

• Uses Version 07, the current and superseding version of the data product.
• Provides climate-referenced homogeneity by using consistent ECMWF-Interim reanalysis ancillary data.
• Offers global daily coverage at a 0.25-degree spatial resolution.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Retrievals from the SSMI microwave sensor on the F14 satellite, processed with the GPROF algorithm.

Time Range

Daily averages, with ancillary data from ECMWF-Interim reanalysis (2-3 months lag).

Freshness

Last updated 2026-03-13 01:56:01.174022; freshness should be verified.

Geography

Global