GPM GPROF: Global Daily Precipitation Grids from NOAA-21 ATMS Satellite

Version 07 climate-reference precipitation data uses homogeneous ECMWF-Interim reanalysis for consistent atmospheric conditions over the climate time series. The National Aeronautics and Space Administration provides global 0.25-degree gridded daily averages derived from high-quality microwave sensors sensitive to liquid and ice-phase precipitation. These 3GPROF products are specifically designed for climate studies and were last updated in March 2026.

Use Cases

• Analyzing long-term global precipitation trends based on climate-referenced retrievals.
• Validating climate model outputs based on homogeneous satellite-derived precipitation averages.
• Studying atmospheric water vapor and hydrometeor distribution based on microwave sensor sensitivity.
• Investigating regional precipitation variability for climate studies based on 0.25-degree gridded data.

Strengths

• Uses Version 07, the current and superseding version of the dataset.
• Provides climate-reference homogeneity using ECMWF-Interim reanalysis ancillary data.
• Data is derived from high-quality microwave sensors on the NOAA-21 satellite.
• Global coverage at a 0.25-degree by 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.
• 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 ATMS microwave sensor on the NOAA-21 satellite, processed by the GPROF algorithm.

Time Range

Daily averages; specific temporal coverage is not stated.

Freshness

Last updated 2026-03-13 02:09:01.279317.

Geography

Global