GPM MHS: Common Calibrated Brightness Temperature from NOAA-18 Satellite

Version 07 is the current version of this Level 1C satellite data product. It contains common calibrated brightness temperature data from the MHS passive microwave instrument on the NOAA-18 satellite, with a 2.667-second scan period and 17 km spatial resolution. The data is produced by NASA's GES DISC and was last updated in March 2026.

Use Cases

• Deriving consistent precipitation products based on intercalibrated brightness temperatures.
• Analyzing atmospheric water vapor profiles based on the 183.3 GHz channels mentioned in the description.
• Studying microwave radiometer performance and calibration consistency across satellite platforms.
• Assimilating brightness temperature observations into numerical weather prediction models.

Strengths

• Data is intercalibrated to a common basis for consistency across products.
• Swath S1 contains 5 specific microwave channels (e.g., 89.0GHzV, 183.3GHz±250MHzH).
• Follows a common, simple L1C data structure for ease of use.

Limitations

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

Provenance

Source

National Aeronautics and Space Administration (NASA) GES DISC

Collection Method

Passive microwave observations from the MHS instrument on the NOAA-18 satellite.

Time Range

Temporal coverage is not explicitly stated in the provided input.

Freshness

Last updated 2026-03 13 02:17:53.007955; freshness should be verified.

Geography

Global swath coverage from a polar.orbiting satellite.