GPM_2AKaENV: GPM Ka-Band Radar Precipitation and Atmospheric Profiles

GPM_2AKaENV Version 07 is environmental data from NASA's Global Precipitation Measurement mission. It contains precipitation estimates and atmospheric parameter profiles derived from the Ka-band radar on the GPM core spacecraft, using a single-frequency retrieval algorithm. The data includes two swaths: matched scans aligned with the Ku-band and high-sensitivity scans interleaved between them.

Use Cases

• Estimate precipitation rates based on Ka-band radar retrievals.
• Analyze atmospheric water vapor profiles assumed in the retrieval algorithm.
• Study lighter precipitation events based on the high-sensitivity scan data.
• Compare single-frequency (Ka-only) and dual-frequency (Ku/Ka) precipitation retrieval methods.

Strengths

• Data is from NASA's GPM mission, a major Earth observation program.
• Version 07 is the current version, superseding older data.
• High-sensitivity scans may provide estimates in lighter precipitation than Ku-only data.
• Product is produced independently and is not impacted by operational issues with the Ku-band radar.

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)

Collection Method

Satellite remote sensing data from the Dual-Frequency Precipitation Radar on the GPM core spacecraft.

Time Range

Temporal coverage is not specified in the provided metadata.

Freshness

Last updated 2026-03-13 02:28:22.104827; freshness should be verified.

Geography

Spatial coverage is global, corresponding to the GPM satellite's orbit.