SNDRSNIML3CDCCP: Daily Global Atmospheric Profiles from Suomi NPP Satellite

Sounder SIPS provides the Suomi NPP CrIMSS Level 3 CLIMCAPS V2 dataset, containing daily gridded atmospheric state profiles derived from the CrIS/ATMS instruments. The data includes full atmospheric profiles of temperature, water vapor, ozone, and trace gases like carbon monoxide and methane, alongside surface and cloud properties. It is produced using an Optimal Estimation algorithm applied to Full Spectral Resolution infrared and microwave sounder data.

Use Cases

• Monitoring global carbon monoxide distributions using retrieved column density values.
• Analyzing vertical profiles of temperature and water vapor for weather and climate studies.
• Studying cloud top characteristics and their radiative impact.
• Tracking trace gas concentrations (methane, sulfur dioxide) for air quality and pollution research.
• Assimilating gridded atmospheric state data into numerical weather prediction models.

Strengths

• Derived from high-resolution satellite instruments: CrIS has 2211 infrared channels and ATMS has 22 microwave channels.
• Provides a comprehensive atmospheric state characterization, including over a dozen geophysical parameters from surface to upper air.
• Cross-platform presence on NASA Earthdata and Data.gov signals its importance and institutional backing.

Limitations

• Contains a significant, documented bias in the 'co_mmr_midtrop' variable due to a molecular weight conversion error.
• Key metadata such as row count, column names, and specific file size are unavailable across all sources.
• The license is ambiguously specified as 'other-license-specified', requiring further investigation for reuse.

Provenance

Source

GES DISC (Goddard Earth Sciences Data and Information Services Center), NASA.

Collection Method

Data from the Suomi NPP satellite's CrIS/ATMS (CrIMSS) instruments, processed with the CLIMCAPS Optimal Estimation algorithm.

Time Range

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Freshness

2026-04-09 20:30:03.697822

Geography

Global, gridded at one degree latitude by one degree longitude resolution.