CLDMSK_L2_VIIRS_NOAA21: Cloud Mask Data from NOAA-21 Satellite

The dataset contains 6-minute swath data from the NOAA-21 satellite. It provides Level-2 cloud mask and spectral test results at a nominal spatial resolution of 750 meters, derived from the MODIS-VIIRS cloud mask (MVCM) continuity algorithm. This product is designed to sustain long-term records from both MODIS and VIIRS satellite heritages.

Use Cases

• Cloud detection and classification based on spectral test results.
• Climate and weather model validation using high-resolution (750m) cloud mask data.
• Long-term continuity analysis of cloud records from MODIS and VIIRS satellite heritages.
• Atmospheric research using calibration-adjusted NASA VIIRS L1B inputs.

Strengths

• Provides high-resolution geospatial data with a nominal spatial resolution of 750 meters.
• Ensures data continuity as part of a long-term record from MODIS and VIIRS satellite missions.
• Processed frequently with a 6-minute acquisition and processing cycle.

Limitations

• Specific column names and data schema are not provided in the available metadata.
• Conflicting license information exists between platforms (other-license-specified vs. None).
• Dataset size and row counts are unknown across all sources.

Provenance

Source

National Aeronautics and Space Administration (NASA), derived from NOAA-21 VIIRS satellite.

Collection Method

Produced by the MODIS-VIIRS cloud mask (MVCM) algorithm using calibration-adjusted NASA VIIRS L1B inputs.

Freshness

Last updated on 2026-04-09 according to datagov.

Geography

Global swath coverage from the NOAA-21 satellite orbit.