GPM AMSR-E on Aqua (GPROF) Climate-based Radiometer Precipitation Profiling L3 1 day 0.25

Version 07 is the current climate-referenced data product from NASA's GES DISC, last updated on 2026-03 -13. It provides global daily precipitation averages at a 0.25-degree spatial resolution, derived from the AMSR-E sensor on the Aqua satellite using the GPROF algorithm. The data is processed with homogeneous ECMWF-Interim reanalysis ancillary data to ensure consistency for long-term climate analysis.

Use Cases

• Analyzing long-term global precipitation trends based on climate-referenced satellite retrievals
• Validating and calibrating climate models based on gridded daily precipitation averages
• Studying atmospheric water vapor and hydrometeor distribution based on microwave sensor sensitivity
• Investigating regional climate variability based on 0.25-degree resolution global grids

Strengths

• Provides climate-homogeneous data using consistent ECMWF-Interim reanalysis ancillary inputs
• Offers global coverage at a 0.25-degree by 0.25-degree spatial resolution
• Based on retrievals from high-quality microwave sensors sensitive to liquid and ice-phase precipitation

Limitations

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

Provenance

Source

National Aeronautics and Space Administration (NASA), GES DISC

Collection Method

Satellite retrievals from the AMSR-E sensor on the Aqua satellite, processed with the GPROF algorithm.

Time Range

Daily temporal resolution; specific date range is not provided in the input.

Freshness

Last updated 2026-03-13 02:09:55.433057; freshness should be verified

Geography

Global coverage.