GPM SSMIS Climate-based Radiometer Precipitation Profiling, Monthly 0.25° Grid

Version 07 is the current version of this climate-referenced precipitation dataset from NASA's GES DISC. The data provides global gridded monthly precipitation averages derived from the SSMIS sensor on the F18 satellite using the GPROF algorithm. It is designed for climate studies, using homogeneous ECMWF-Interim reanalysis data as ancillary input to ensure consistency over the time series.

Use Cases

• Analyzing long-term global precipitation trends for climate studies based on the climate-referenced data series.
• Validating and calibrating climate models using homogeneous, satellite-derived monthly precipitation averages.
• Studying the relationship between atmospheric water vapor and precipitation based on microwave sensor retrievals.

Strengths

• Data is version 07, superseding all older versions for consistency.
• Uses homogeneous ECMWF-Interim reanalysis as ancillary data, designed for climate time series analysis.
• Provides global coverage at a 0.25-degree x 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.
• The ECMWF-Interim ancillary data has a 2-3 month lag behind regular production.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Retrievals from the SSMIS microwave sensor on the F18 satellite, processed with the GPROF algorithm.

Time Range

Monthly averages; specific temporal coverage is not provided in the input.

Freshness

Last updated 2026-03 13 01:55:03.212735; freshness should be verified.

Geography

Global