GPM SSMI F11: Daily 0.25-Degree Gridded Precipitation from Microwave Radiometers

GPM_3GPROFF11SSMI_DAY_CLIM is a Version 07 climate-reference dataset from NASA's GES DISC. It provides global daily precipitation averages at a 0.25-degree resolution, derived from the SSMI sensor on the F11 satellite using the GPROF algorithm with ECMWF-Interim reanalysis for homogeneous ancillary data. The data is designed for climate studies, using microwave sensors sensitive to liquid and ice-phase precipitation.

Use Cases

• Analyzing long-term global precipitation trends based on climate-reference, homogeneous ancillary data.
• Validating climate model outputs against satellite-derived precipitation profiles based on microwave radiometer retrievals.
• Studying the spatial distribution of liquid and ice-phase precipitation hydrometeors based on sensor sensitivity described.
• Conducting climate studies requiring gridded daily precipitation averages at a 0.25-degree resolution.

Strengths

• Version 07 is the current, superseding version of the dataset.
• Provides global, daily gridded data at a 0.25-degree spatial resolution.
• Uses climate-homogeneous ancillary data (ECMWF-Interim reanalysis) for consistent time-series analysis.
• Based on retrievals from high-quality microwave sensors sensitive to precipitation hydrometeors.

Limitations

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

Provenance

Source

National Aeronautics and Space Administration (NASA), GES DISC

Collection Method

Satellite-based retrievals from the SSMI sensor on the F11 satellite, processed with the GPROF algorithm using ECMWF-Interim reanalysis.

Time Range

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

Freshness

Last updated 2026-03-13 01:56:29.254488; freshness should be verified.

Geography

Global coverage.