VIIRS/NOAA20 Cloud Mask and Spectral Test Results 6-Min L2 Swath 750m

The VIIRS/NOAA20 Cloud Mask and Spectral Test Results 6-Min L2 Swath 750m product Mask is one of three continuity products designed to sustain the long-term records of both Moderate Resolution Imaging Spectroradiometer (MODIS) and VIIRS heritages. CLDMSK_L2_VIIRS_NOAA20 is the shortname for the NOAA-20 VIIRS incarnation of the Cloud Mask continuity product derived from the MODIS-VIIRS cloud mask (MVCM) algorithm, which itself is based on the MODIS (MOD35) algorithm. MVCM describes a continuity algorithm that is central to both MODIS data (from Terra and Aqua missions) and VIIRS data (from Suomi National Polar-orbiting Partnership (SNPP) and Joint Polar Satellite System missions). Please bear in mind that the term MVCM does not appear as an attribute within the product’s metadata. Implemented to consistently handle MODIS and VIIRS inputs, the NOAA-20 VIIRS collection-1 products use calibration-adjusted NASA VIIRS L1B as inputs. The nominal spatial resolution of the NOAA-20 VIIRS L2 Cloud mask is 750 meters. For more information consult Product Page at: https://cimss.ssec.wisc.edu/MVCM/

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated April 13, 2026, 21:02 (UTC)
Created April 1, 2025, 19:50 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id c990469c-a147-4a49-b49a-12eae83f65bd
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.5067/VIIRS/CLDMSK_L2_VIIRS_NOAA20.001
license https://www.usa.gov/government-works
modified 2026-04-06T22:16:02Z
programCode {026:000}
publisher NASA/GSFC/SED/ESD/HBSL/BISB/MODAPS;NASA/GSFC/SED/ESD/HBSL/BISB/LAADS;UWI-MAD/SSEC
resource-type Dataset
source_datajson_identifier true
source_hash 3597dbe10a879877df6e43e777689e645ce01dc6dc32dfe073ac6549234cb0df
source_schema_version 1.1
spatial [[{"EastBoundingCoordinate":180,"NorthBoundingCoordinate":90,"SouthBoundingCoordinate":-90,"WestBoundingCoordinate":-180}],"CARTESIAN"]
temporal 2012-03-01/2026-04-06
theme {"Earth Science"}