GPM_2AGPROFNOAA21ATMS_CLIM: Climate-based Satellite Precipitation Profiles

Version 07 climate-reference precipitation data from the ATMS sensor on the NOAA-21 satellite, processed using the GPROF algorithm. The dataset provides 1.5-hour, 17 km resolution retrievals, using ECMWF-Interim reanalysis for homogeneous ancillary data to support long-term climate records. It is produced by the National Aeronautics and Space Administration and was last updated in March 2026.

Use Cases

• Analyzing long-term precipitation trends based on climate-referenced retrievals using homogeneous ancillary data.
• Validating and calibrating climate models based on Bayesian-derived precipitation profiles and hydrometeor vertical structure.
• Studying atmospheric water vapor and cloud properties based on retrieved brightness temperature proximity and a-priori databases.
• Assessing global precipitation coverage and sampling based on the constellation approach using multiple passive microwave sensors.

Strengths

• Designed for climate time series consistency using homogeneous ECMWF-Interim reanalysis ancillary data.
• Provides large spatial sampling as part of the GPM constellation achieving 3-hour global coverage.
• Algorithm uses a parametric Bayesian method suitable for a multi-sensor constellation approach.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• The ECMWF-Interim ancillary data has a 2-3 month lag behind regular production.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Retrieved from the ATMS sensor on NOAA-21 satellite and processed with the GPROF (2AGPROF) Bayesian algorithm.

Time Range

Temporal coverage is not explicitly stated in the provided input.

Freshness

Last updated 2026-03-13 02:08:16.535301; freshness should be verified.

Geography

Likely global coverage, as part of the Global Precipitation Measurement (GPM) mission.