GPM 3GPROFF10SSMI: Daily Global Precipitation Estimates from Microwave Sensors

Version 7 is the current version of this NASA dataset, superseding all older versions. The data provides global gridded daily precipitation averages derived from high-quality microwave sensors sensitive to liquid and ice-phase precipitation. It is a Climate-Reference product using homogeneous ECMWF-Interim reanalysis data for consistent atmospheric conditions over the climate time series.

Use Cases

• Climate trend analysis based on homogeneous, climate-referenced precipitation retrievals.
• Validating atmospheric models based on microwave sensor-derived precipitation profiles.
• Studying global precipitation distribution based on 0.25-degree gridded daily averages.

Strengths

• Current Version 7 data, with older versions superseded for consistency.
• Uses homogeneous ECMWF-Interim reanalysis as ancillary data for climate time series.
• Based on retrievals from sensors sensitive to both 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.
• Data may reflect temporal bias inherent to the 2-3 month lag in ECMWF-Interim ancillary data.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Retrievals from high-quality microwave sensors processed by the GPROF algorithm.

Time Range

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Freshness

Last updated 2026-03-13 01:56:45.138634; freshness should be verified.

Geography

Global coverage at 0.25 degree x 0.25 degree resolution.