NOAA-20 VIIRS+CrIS Fusion: Infrared Radiance Swath Data

NOAA-20 satellite data provides a fused Level-2 product combining Visible Infrared Imaging Radiometer Suite (VIIRS) and Cross-track Infrared Sounder (CrIS) observations. It constructs infrared absorption band radiances at a 750-meter spatial resolution, stored in 6-minute NetCDF4 granules, to ensure continuity with legacy MODIS and HIRS products for cloud and moisture analysis. This Version-2.0 collection includes improvements in data quality screening, collocation algorithms, and artifact correction for water vapor channels.

Use Cases

• Deriving cloud properties and atmospheric moisture profiles based on fused infrared absorption band radiances.
• Monitoring land surface temperature and emissivity using constructed brightness temperatures at 750m resolution.
• Continuing climate data records from MODIS and HIRS by leveraging similar spectral bands in the fused product.
• Correcting artifacts in water vapor channel retrievals over warm, dry surfaces as addressed in the v2.0 improvements.
• Salvaging usable data from granules with partial calibration issues through scanline-level quality checks.

Strengths

• Provides a specific 750-meter horizontal pixel size, matching the native VIIRS M-band resolution.
• Represents a Version-2.0 collection with documented improvements in quality control, collocation, and artifact correction.
• Data is structured in compressed NetCDF4 files, a standard format for scientific geospatial data.

Limitations

• Column names and detailed schema are unknown across all platform sources, limiting precise understanding of data structure.
• Key metadata such as dataset size, row count, and temporal coverage is not provided in any source.
• License is ambiguously listed as 'other-license-specified', requiring further investigation for reuse.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Satellite remote sensing data fusion from the NOAA-20 platform's VIIRS and CrIS instruments.

Time Range

null

Freshness

2026-04-09 23:40:09.943564

Geography

Global swath coverage from the NOAA-20 satellite orbit.