SNDRJ1ML2RMS: JPSS-1 ATMS All-Weather Atmospheric and Surface Retrievals

240 granules per day provide global, all-weather atmospheric and surface observations from the NOAA-20 satellite. The RAMSES II algorithm processes microwave sounder data to retrieve temperature and water vapor profiles, precipitation, and surface properties without cloud clearing. Data is organized in 6-minute granules with an approximate 16-day orbit repeat cycle.

Use Cases

• Assimilating temperature and humidity profiles into numerical weather prediction models based on retrieved atmospheric profiles.
• Monitoring global precipitation and total precipitable water for climate studies based on retrieved water in all phases.
• Analyzing land and sea surface skin temperature trends based on retrieved surface properties.
• Studying atmospheric thermodynamics in cloudy regions based on the all-weather retrieval capability.

Strengths

• Provides continuous, global coverage with 240 data granules generated daily.
• Offers all-weather atmospheric retrievals, as the algorithm does not require cloud clearing.
• Retrieves a variety of geophysical parameters, including profiles and surface properties, from 22 microwave channels.

Limitations

• Key metadata is incomplete or conflicting; column names and exact data structure are not specified in the provided sources.
• The temporal coverage (start/end dates) and spatial resolution are not explicitly stated.
• One source lists a license ('other-license-specified') while another lists none, creating ambiguity.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Generated by the RAMSES II retrieval algorithm using observations from the NOAA-20/JPSS-1 Advanced Technology Microwave Sounder (ATMS) instrument.

Freshness

Last updated on 2026-04-09 according to datagov.

Geography

Global, based on satellite cross-track scanning.