GPM Combined Precipitation: Daily Global Satellite Data

Global precipitation data from March 2014 onward, created by combining measurements from NASA's GPM Microwave Imager and Dual-frequency Precipitation Radar instruments. Version 07 is the current version, superseding older releases. The data is provided at a daily temporal resolution and a 0.25-degree spatial resolution.

Use Cases

• Model global precipitation patterns based on combined radar and microwave satellite data.
• Analyze daily precipitation trends for climate research based on the 0.25-degree spatial resolution.
• Validate other precipitation datasets using the combined GPM instrument measurements.
• Study atmospheric water vapor and precipitation dynamics over the GPM epoch starting in 2014.

Strengths

• Combines data from two distinct satellite instruments (GMI and DPR), likely improving accuracy.
• Provides a long-term record starting in March 2014, suitable for trend analysis.
• Offers a consistent 0.25-degree spatial resolution for global coverage.

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 geographic or temporal bias inherent to the satellite coverage.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Combined measurements from the GPM Microwave Imager (GMI) and Dual-frequency Precipitation Radar (DPR) instruments.

Time Range

March 2014 onward (GPM epoch). A similar product exists for the TRMM epoch (December 1997 - April 2015).

Freshness

Last updated 2026-03-13 02:08:10.355739; freshness should be verified.

Geography

Global