{"@type": "dcat:Dataset", "accessLevel": "public", "bureauCode": ["026:00"], "contactPoint": {"@type": "vcard:Contact", "fn": "NSIDC Services", "hasEmail": "mailto:nsidc@nsidc.org"}, "description": "ATL21 contains daily and monthly gridded polar sea surface height (SSH) anomalies, derived from the along-track ATLAS/ICESat-2 L3A Sea Ice Height product (ATL10, V6). The ATL10 product identifies leads in sea ice and establishes a reference sea surface used to estimate SSH in 10 km along-track segments. ATL21 aggregates the ATL10 along-track SSH estimates and computes daily and monthly gridded SSH anomaly in NSIDC Polar Stereographic Northern and Southern Hemisphere 25 km grids.", "distribution": [{"@type": "dcat:Distribution", "description": "Direct download via HTTPS protocol.", "downloadURL": "https://cmr.earthdata.nasa.gov/virtual-directory/collections/C2753316241-NSIDC_CPRD", "format": "HTML", "mediaType": "text/html", "title": "Download this dataset"}, {"@type": "dcat:Distribution", "description": "Includes a user's guide, supplemental documents like ATBDs and academic papers, How Tos, FAQs, etc.", "downloadURL": "https://doi.org/10.5067/ATLAS/ATL21.003", "format": "HTML", "mediaType": "text/html", "title": "View documentation related to this dataset"}, {"@type": "dcat:Distribution", "description": "NASA's newest search and order tool for subsetting, reprojecting, and reformatting data.", "downloadURL": "https://search.earthdata.nasa.gov/search?q=ATL21+V003", "format": "HTML", "mediaType": "text/html", "title": "Download this dataset through Earthdata Search"}, {"@type": "dcat:Distribution", "description": "Provides access to data, documentation, tools, citation information, support, and other resources.", "downloadURL": "https://doi.org/10.5067/ATLAS/ATL21.003", "format": "HTML", "mediaType": "text/html", "title": "This dataset's landing page"}, {"@type": "dcat:Distribution", "description": "Search results for publications that cite this dataset by its DOI.", "downloadURL": "https://scholar.google.com/scholar?q=10.5067%2FATLAS%2FATL21.003", "format": "HTML", "mediaType": "text/html", "title": "Google Scholar search results"}], "identifier": "C2753316241-NSIDC_CPRD", "issued": "2018-10-14", "keyword": ["earth-science", "oceans", "sea-surface-topography"], "landingPage": "https://doi.org/10.5067/ATLAS/ATL21.003", "language": ["en-US"], "modified": "2025-03-31", "programCode": ["026:001"], "publisher": {"@type": "org:Organization", "name": "NASA NSIDC DAAC"}, "spatial": "-180.0 -90.0 180.0 90.0", "temporal": "2018-10-14T00:00:00Z/2025-02-24T00:00:00Z", "theme": ["geospatial"], "title": "ATLAS/ICESat-2 L3B Daily and Monthly Gridded Polar Sea Surface Height Anomaly V003"}