Suomi NPP CrIMSS CHART: Atmospheric State Profiles and Surface Properties

Sounders SIPS: Suomi NPP CrIMSS Level 3 Specific Quality Control Gridded Monthly CHART Normal Spectral Resolution V1 is a satellite-derived dataset providing a full atmospheric state characterization. It applies the Climate Heritage AIRS Retrieval Technique (CHART) algorithm to data from the CrIS and ATMS instruments aboard the Suomi NPP satellite. The resulting monthly, one-degree gridded product includes surface temperature, atmospheric profiles of temperature, water vapor, and ozone, cloud properties, outgoing longwave radiation, and precipitation estimates.

Use Cases

• Analyzing global temperature and water vapor profiles for climate model validation.
• Studying cloud top characteristics and their impact on outgoing longwave radiation.
• Estimating infrared-based precipitation rates over data-sparse regions.
• Monitoring surface skin temperature and land surface emissivity trends.
• Investigating tropospheric ozone and methane concentrations from derived atmospheric chemistry parameters.

Strengths

• Derived from high-resolution sensor data, including 1305 CrIS infrared channels and 22 ATMS microwave channels.
• Algorithm is consistent with the established and validated AIRS Version-6.6 retrieval system, using a neural network for initial guess.
• Product is gridded at a one-degree latitude/longitude resolution, facilitating large-scale analysis.

Limitations

• Metadata conflicts exist: the 'last updated' date differs between 2015-11-01 and 2026-04 09 across platform entries.
• Specific column names and the total row/size of the dataset are not provided in any source.
• The dataset is described as a 'limited edition data collection,' which may imply restricted temporal coverage or experimental status.

Provenance

Source

GES_DISC, utilizing the Suomi NPP satellite's CrIS/ATMS (CrIMSS) instruments.

Collection Method

Retrievals generated by the Climate Heritage AIRS Retrieval Technique (CHART) algorithm applied to level-2 data, with specific quality control to create a level-3 monthly gridded product.

Time Range

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Freshness

2026-04-09 22:53:00.146889

Geography

Global, gridded to one-degree latitude by one-degree longitude cells.