{"@type": "dcat:Dataset", "accessLevel": "public", "bureauCode": ["026:00"], "contactPoint": {"@type": "vcard:Contact", "fn": "Earthdata Forum", "hasEmail": "mailto:earthdata-support@nasa.gov"}, "description": "Level 1A (L1A) data are reconstructed, unprocessed instrument data at full resolution, time-referenced, and annotated with ancillary information. This ancillary information can include radiometric and geometric calibration coefficients and georeferencing parameters (e.g., platform ephemeris).\nThe Geolocation (GEO) collection provides terrain-corrected geolocation, viewing geometry, and navigation information required to accurately map satellite observations to Earth coordinates. The products include per-pixel latitude and longitude, surface height, solar and sensor zenith and azimuth angles, along with quality flags describing geolocation validity. In addition, scan-level timing, spacecraft attitude, and orbital navigation parameters are provided to support precise georeferencing and downstream processing. The GEO data are distributed in self-describing data formats and are intended to be used in conjunction with Level-1 radiance products to enable the generation and analysis of higher-level geophysical data products.", "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/C2564699037-NSIDCV0.iso19115", "format": "ISO", "mediaType": "text/xml", "title": "Original Metadata"}, {"@type": "dcat:Distribution", "downloadURL": "https://daacdata.apps.nsidc.org/pub/DATASETS/nsidc0105_snowmelt_on_seaice_v5/", "format": "BIN", "mediaType": "application/octet-stream"}, {"@type": "dcat:Distribution", "downloadURL": "https://doi.org/10.5067/TRGWQ0ONTQG5", "format": "HTML", "mediaType": "text/html"}, {"@type": "dcat:Distribution", "downloadURL": "https://nsidc.org/sites/default/files/documents/technical-reference/smmr-ssmi-ssmis-sensors.pdf", "format": "PDF", "mediaType": "application/pdf"}, {"@type": "dcat:Distribution", "downloadURL": "https://nsidc.org/sites/default/files/documents/user-guide/nsidc-0105-userguide-v5.pdf", "format": "PDF", "mediaType": "application/pdf"}], "identifier": "10.5067/SUOMI-NPP/VIIRS/L1A/GEO/2", "keyword": ["earth-science-geodetics-solid-earth", "earth-science-sensor-characteristics-spectral-engineering", "earth-science-sensor-characteristics-spectral-engineering-geolocation"], "license": "https://www.usa.gov/government-works", "modified": "2026-06-23", "programCode": ["026:000"], "publisher": {"@type": "org:Organization", "name": "NASA/GSFC/SED/ESD/GCDC/OB.DAAC;OBPG"}, "spatial": "[\"CARTESIAN\", [{\"NorthBoundingCoordinate\": 90, \"SouthBoundingCoordinate\": -90, \"EastBoundingCoordinate\": 180, \"WestBoundingCoordinate\": -180}]]", "temporal": "2012-01-02/2026-06-15", "theme": ["Earth Science"], "title": "Suomi-NPP VIIRS Level-1A Geolocation Data, version 2"}