{"@type": "dcat:Dataset", "accessLevel": "public", "bureauCode": ["026:00"], "contactPoint": {"@type": "vcard:Contact", "fn": "Earthdata Forum", "hasEmail": "mailto:earthdata-support@nasa.gov"}, "description": "This data set contains near-surface (< 5 cm) soil freeze/thaw status on snow-free and snow-covered land surfaces over the Arctic terrestrial drainage basin. The near-surface soil freeze/thaw status is determined by using passive-microwave remote sensing data over snow-free land and a numerical model over snow-covered land. Data are projected to a 25 km x 25 km Northern Hemisphere EASE-Grid. Version 2 of this data set greatly extends the temporal coverage and makes use of data from SMMR as well as SSM/I. Data are from October 1978 to June 2004. Data are in ASCII text format and are available via FTP.", "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/C1386246391-NSIDCV0.iso19115", "format": "ISO", "mediaType": "text/xml", "title": "Original Metadata"}, {"@type": "dcat:Distribution", "downloadURL": "http://nsidc.org/data/docs/fgdc/ggd641_freezethaw_arctic/index.html", "format": "HTML", "mediaType": "text/html"}, {"@type": "dcat:Distribution", "downloadURL": "https://doi.org/10.7265/c7f8-6t68", "format": "HTML", "mediaType": "text/html"}, {"@type": "dcat:Distribution", "downloadURL": "https://nsidc.org/forms/GGD641_or.html?major_version=2", "format": "BIN", "mediaType": "application/octet-stream"}], "identifier": "10.7265/c7f8-6t68", "keyword": ["earth-science-frozen-ground-cryosphere-seasonally-frozen-ground", "earth-science-frozen-ground-land-surface-seasonally-frozen-ground", "earth-science-snow-ice-cryosphere-freeze-thaw", "earth-science-snow-ice-terrestrial-hydrosphere-freeze-thaw"], "license": "https://www.usa.gov/government-works", "modified": "2026-08-11", "programCode": ["026:000"], "publisher": {"@type": "org:Organization", "name": "NSIDC"}, "spatial": "[\"CARTESIAN\", [{\"WestBoundingCoordinate\": -180.0, \"NorthBoundingCoordinate\": 90.0, \"EastBoundingCoordinate\": 180.0, \"SouthBoundingCoordinate\": 45.0}]]", "temporal": "1978-10-01/2004-06-30", "theme": ["Earth Science"], "title": "Arctic Soil Freeze/Thaw Status from SMMR and SSM/I, Version 2"}