NOAA-20 Satellite Collocated Infrared Radiance and Cloud Mask Statistics

NASA GES DISC provides statistical summaries of VIIRS cloud mask and Level 1B data collocated within CrIS instrument footprints from the NOAA-20 satellite. The Cross-track Infrared Sounder (CrIS) data includes 2,223 spectral channels across shortwave, midwave, and longwave infrared bands. Products are generated on six-minute boundaries from the Joint Polar Satellite System-1 mission.

Use Cases

• Train cloud classification models using VIIRS cloud mask statistics within each CrIS field-of-regard.
• Analyze spectral correlations between 2,223 CrIS infrared channels and collocated VIIRS sensor data records.
• Validate atmospheric retrieval algorithms by comparing VIIRS sea surface temperature or ocean color data with CrIS radiance measurements.
• Perform spatial analysis of cloud properties using statistics from the 3x3 array of CrIS field-of-views within each footprint.

Strengths

• High spectral resolution with 2,223 infrared channels across three wavelength ranges.
• Spatial collocation provides VIIRS statistics for each of the 9 field-of-views in a CrIS footprint.
• Data products are systematically constructed on consistent six-minute temporal boundaries.

Limitations

• Specific row count, file size, and temporal coverage range are not provided in the description.
• The dataset is a statistical summary (IMG product), not the raw pixel-level VIIRS or CrIS data.
• Geographic coverage is limited to the polar-orbiting swath of the NOAA-20 satellite.

Provenance

Source

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

Collection Method

Data collected by the CrIS and VIIRS instruments aboard the Joint Polar Satellite System-1 (JPSS-1/NOAA-20) satellite, with VIIRS statistics collocated to CrIS footprints.

Geography

Global coverage from the polar orbit of the NOAA-20 satellite.