JPSS-1 CrIS IMG: VIIRS Cloud Mask Statistics Within CrIS Footprints

2223 spectral channels from the JPSS-1 satellite's Cross-track Infrared Sounder provide radiance measurements across shortwave, midwave, and longwave infrared bands. The IMG product collocates these soundings with Visible Infrared Imaging Radiometer Suite data, primarily containing statistics of VIIRS cloud mask and Level 1B data within each CrIS footprint. NASA provides this data, last updated in March 2026.

Use Cases

• Develop cloud detection algorithms based on VIIRS cloud mask statistics.
• Perform atmospheric profiling based on CrIS radiance measurements across 2223 spectral channels.
• Cross-calibrate infrared sounder and imaging radiometer data based on collocated footprints.
• Analyze sea surface temperature or ocean color by leveraging VIIRS sensor data records mentioned in the description.

Strengths

• Provides high spectral resolution with 2223 channels across three infrared wavelength ranges.
• Data is collocated, offering VIIRS cloud mask and Level 1B statistics within each CrIS footprint.
• Follows a proven system, being nearly identical to the Suomi NPP mission's CrIS instrumentation and processing.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic or temporal bias inherent to satellite observations.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Data collected by the Cross-track Infrared Sounder (CrIS) and Visible Infrared Imaging Radiometer Suite (VIIRS) instruments on the JPSS-1/NOAA-20 satellite.

Freshness

Last updated 2026-03-13 01:30:09.906667; freshness should be verified.

Geography

Global coverage from polar-orbiting satellite.