S-NPP CrIS IMG: VIIRS Cloud and Radiance Statistics Collocated with CrIS Footprints

S-NPP CrIS IMG data from GES DISC contain collocated Visible Infrared Imaging Radiometer Suite (VIIRS) statistics within each Cross-track Infrared Sounder (CrIS) footprint. The dataset provides Level 1B radiance measurements from CrIS across 1,317 spectral channels and summary statistics from VIIRS's 22 bands, including cloud mask data. Products are constructed on six-minute boundaries with a spatial sampling of 30 field-of-regards cross-track and 45 along-track.

Use Cases

• Fusing hyperspectral infrared radiance with multispectral imager data for improved atmospheric profiling.
• Analyzing cloud properties and distributions using collocated VIIRS cloud mask statistics within CrIS fields-of-view.
• Calibrating or validating CrIS radiance measurements using VIIRS reflective and emissive band data.
• Studying sea surface temperature or ocean color by leveraging VIIRS sensor data records collocated with sounder footprints.

Strengths

• Provides data from two key instruments (CrIS and VIIRS) on the same satellite platform, enabling direct collocation.
• Specifies precise spectral coverage with 1,317 channels across shortwave, midwave, and longwave infrared regions.
• Documents a clear evolution in data quality, noting spectral resolution improvements in December 2014 and calibration enhancements in November 2015.

Limitations

• Column names and detailed schema are not provided in the available metadata, limiting immediate usability.
• Key quantitative metadata like file size and row count are unspecified across all platforms.
• The license is listed as 'other-license-specified' without explicit details, requiring further investigation for use.

Provenance

Source

GES_DISC, NASA

Collection Method

Satellite remote sensing from the Suomi NPP spacecraft's CrIS and VIIRS instruments.

Time Range

Coverage from at least 2014 onward, with a noted data format change on November 2, 2015.

Freshness

2026-04-09 22:22:26.957268

Geography

Global coverage from the polar-orbiting Suomi NPP satellite.