{"@type": "dcat:Dataset", "accessLevel": "public", "bureauCode": ["026:00"], "contactPoint": {"@type": "vcard:Contact", "fn": "Earthdata Forum", "hasEmail": "mailto:earthdata-support@nasa.gov"}, "description": "The Cloud Mask identifies whether pixels are cloud-covered or not. This is important because algorithms to determine cloud properties should only run on cloudy pixels, and other algorithms that require clear-sky pixels need to screen clouds out. In practice, users apply cloud_flag for strict cloud removal and cloud_flag_dilated when they want a conservative mask that reduces cloud-edge artifacts in downstream products (e.g., Rrs, chlorophyll). The CLDMASK is used operationally as the \"cloud and cloud-adjacent\" screen.\n\nCore geophysical variables in this suite include:\n - cloud_flag - Cloud mask (bitmask; identifies cloud-contaminated pixels)\n - cloud_flag_dilated - Cloud or cloud-adjacent pixel mask (bitmask; includes surrounding pixels)\n- l2_flags - Level-2 Processing Flags (bitmask)", "distribution": [{"@type": "dcat:Distribution", "conformsTo": "http://www.isotc211.org/2005/gmi", "description": "The metadata's original source.", "downloadURL": "https://cmr.earthdata.nasa.gov/search/concepts/C3620139782-OB_CLOUD.iso19115", "format": "ISO", "mediaType": "text/xml", "title": "Original Metadata"}, {"@type": "dcat:Distribution", "downloadURL": "https://nasa.github.io/oceandata-notebooks/", "format": "BIN", "mediaType": "application/octet-stream"}, {"@type": "dcat:Distribution", "downloadURL": "https://oceancolor.gsfc.nasa.gov/data/reprocessing/", "format": "BIN", "mediaType": "application/octet-stream"}, {"@type": "dcat:Distribution", "downloadURL": "https://oceancolor.gsfc.nasa.gov/files/atbd/atbd-obdaac-cloudmask.pdf", "format": "PDF", "mediaType": "application/pdf"}, {"@type": "dcat:Distribution", "downloadURL": "https://oceancolor.gsfc.nasa.gov/files/obdaac-ancillary-data-sources.pdf", "format": "PDF", "mediaType": "application/pdf"}, {"@type": "dcat:Distribution", "downloadURL": "https://oceancolor.gsfc.nasa.gov/images/data/pace/sample_data/PACE_OCI.20250101T000242.L2.CLDMASK.V3_1.nc", "format": "NetCDF", "mediaType": "application/netcdf"}, {"@type": "dcat:Distribution", "downloadURL": "https://oceancolor.gsfc.nasa.gov/images/data/pace/txt/OCI_Level-2_CLDMASK_Data_Structure.txt", "format": "TXT", "mediaType": "text/plain"}, {"@type": "dcat:Distribution", "downloadURL": "https://oceandata.sci.gsfc.nasa.gov/directdataaccess/Level-2/", "format": "BIN", "mediaType": "application/octet-stream"}, {"@type": "dcat:Distribution", "downloadURL": "https://search.earthdata.nasa.gov/search?q=%2522PACE_OCI_L2_CLOUD_MASK%2522", "format": "BIN", "mediaType": "application/octet-stream"}, {"@type": "dcat:Distribution", "downloadURL": "https://www.earthdata.nasa.gov/data/instruments/OCI", "format": "BIN", "mediaType": "application/octet-stream"}, {"@type": "dcat:Distribution", "downloadURL": "https://www.earthdata.nasa.gov/data/platforms/space-based-platforms/PACE", "format": "BIN", "mediaType": "application/octet-stream"}], "identifier": "10.5067/PACE/OCI/L2/CLOUD_MASK/3.1", "keyword": ["earth-science-clouds-atmosphere", "earth-science-visible-wavelengths-spectral-engineering"], "license": "https://www.usa.gov/government-works", "modified": "2026-06-09", "programCode": ["026:000"], "publisher": {"@type": "org:Organization", "name": "NASA/GSFC/SED/ESD/GCDC/OB.DAAC;OBPG"}, "spatial": "[\"CARTESIAN\", [{\"EastBoundingCoordinate\": 180, \"WestBoundingCoordinate\": -180, \"NorthBoundingCoordinate\": 90, \"SouthBoundingCoordinate\": -90}]]", "temporal": "2024-03-05/2026-06-03", "theme": ["Earth Science"], "title": "PACE OCI Level-2 Regional  Cloud Mask Data, version 3.1"}