GPM IMERG Early Precipitation: Half-Hourly Global Satellite Estimates at 0.1° Resolution

Global precipitation estimates from the Integrated Multi-satellitE Retrievals for GPM (IMERG) algorithm. The data provides half-hourly, 0.1° x 0.1° (approximately 10 km) gridded fields, generated by NASA's Goddard Earth Sciences Data and Information Services Center (GES DISC). Version 07B is the current version, superseding older releases.

Use Cases

• Modeling global and regional precipitation dynamics based on half-hourly temporal resolution.
• Validating weather and climate models using satellite-derived precipitation estimates.
• Analyzing extreme weather events based on high-resolution (0.1°) gridded data.
• Studiating precipitation climatology using data intercalibrated with radar and gauge products.
• Tracking storm motion and development using data processed with a Morphing-Kalman Filter scheme.

Strengths

• Provides half-hourly temporal resolution for tracking precipitation dynamics.
• Offers high spatial resolution at 0.1° x 0.1° (roughly 10 km).
• Data is intercalibrated to the GPM Combined Ku Radar-Radiometer Algorithm (CORRA) and adjusted to GPCP gauge products.
• Uses a unified algorithm (IMERG) merging data from multiple satellite passive microwave sensors.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for large-scale ML projects.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Satellite retrieval from the GPM constellation, processed using the Integrated Multi-satellitE Retrievals for GPM (IMERG) algorithm.

Time Range

null

Freshness

Last updated 2026-03-13 01:57:47.027557; freshness should be verified.

Geography

Global