{"@type": "dcat:Dataset", "accessLevel": "public", "bureauCode": ["026:00"], "contactPoint": {"@type": "vcard:Contact", "fn": "undefined", "hasEmail": "mailto:cmr-support@earthdata.nasa.gov"}, "description": "The SWOT Level 2 Nadir Altimeter Geophysical Data Record (GDR) with Waveforms dataset produced by the Surface Water and Ocean Topography (SWOT) mission provides sea surface height, significant wave height and wind speed measurements from the Poseidon-3C nadir altimeter, a Jason-class dual frequency (Ku/C) altimeter. SWOT is a joint mission between NASA and CNES that launched on December 16, 2022. It aims to measure ocean surface topography with unprecedented resolution and accuracy, as well as map inland water bodies globally. The GDR dataset consists of discrete measurements for each half orbit along the ground track with sampling resolutions of approximately 6-km and 300-m at 1Hz and 20Hz, respectively. The data were processed using restituted auxiliary data and the Precise Orbit Ephemeris (POE). The data are available with latency of < 90 days and distributed in netCDF-4 file format.\r\n<br>This collection is a sub-collection of its parent: https://podaac.jpl.nasa.gov/dataset/SWOT_L2_NALT_GDR_2.0", "distribution": [{"@type": "dcat:Distribution", "description": "Browse granule search results in Earthdata Search", "downloadURL": "https://search.earthdata.nasa.gov/search/granules?p=C2799465518-POCLOUD", "format": "HTML", "mediaType": "text/html", "title": "Download this dataset through Earthdata Search"}, {"@type": "dcat:Distribution", "description": "Data Subscriber", "downloadURL": "https://github.com/podaac/data-subscriber", "format": "HTML", "mediaType": "text/html"}, {"@type": "dcat:Distribution", "description": "Data Use and Citation Policy", "downloadURL": "https://podaac.jpl.nasa.gov/CitingPODAAC", "format": "HTML", "mediaType": "text/html", "title": "View this dataset's data citation policy"}, {"@type": "dcat:Distribution", "description": "HTTPS endpoint for data browse and download", "downloadURL": "https://cmr.earthdata.nasa.gov/virtual-directory/collections/C2799465518-POCLOUD", "format": "HTML", "mediaType": "text/html", "title": "Download this dataset through a directory map"}, {"@type": "dcat:Distribution", "description": "Product Description Document (PDD)", "downloadURL": "https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/web-misc/swot_mission_docs/pdd/SALP-ST-M-EA-17043-CN_0103_20220411_Rev1.3.pdf", "format": "PDF", "mediaType": "application/pdf", "title": "View this dataset's user's guide"}, {"@type": "dcat:Distribution", "description": "SWOT Mission Page", "downloadURL": "https://swot.jpl.nasa.gov", "format": "HTML", "mediaType": "text/html", "title": "The dataset's project home page"}, {"@type": "dcat:Distribution", "description": "SWOT Mission Page", "downloadURL": "https://swot.jpl.nasa.gov", "format": "HTML", "mediaType": "text/html", "title": "View documentation related to this dataset"}, {"@type": "dcat:Distribution", "description": "SWOT Mission Page at AVISO", "downloadURL": "https://www.aviso.altimetry.fr/en/missions/current-missions/swot.html", "format": "HTML", "mediaType": "text/html", "title": "View documentation related to this dataset"}, {"@type": "dcat:Distribution", "description": "SWOT Mission Page at JPL", "downloadURL": "https://www.jpl.nasa.gov/missions/surface-water-and-ocean-topography-swot", "format": "HTML", "mediaType": "text/html", "title": "View documentation related to this dataset"}, {"@type": "dcat:Distribution", "description": "SWOT Mission Page at NASA", "downloadURL": "https://www.nasa.gov/swot", "format": "HTML", "mediaType": "text/html", "title": "View documentation related to this dataset"}, {"@type": "dcat:Distribution", "description": "SWOT Mission Page at PO.DAAC", "downloadURL": "https://podaac.jpl.nasa.gov/swot", "format": "HTML", "mediaType": "text/html", "title": "View documentation related to this dataset"}, {"@type": "dcat:Distribution", "description": "Search results for publications that cite this dataset by its DOI.", "downloadURL": "https://scholar.google.com/scholar?q=10.5067%2FSWOT-NALT-GDR-2.0", "format": "HTML", "mediaType": "text/html", "title": "Google Scholar search results"}, {"@type": "dcat:Distribution", "description": "Thumbnail", "downloadURL": "https://podaac.jpl.nasa.gov/Podaac/thumbnails/SWOT_L2_NALT_GDR_2.0.jpg", "format": "JPEG", "mediaType": "image/jpeg", "title": "Get a related visualization"}], "identifier": "C2799465518-POCLOUD", "issued": "2022-06-28", "keyword": ["earth-science", "ocean-waves", "oceans", "sea-surface-topography"], "landingPage": "https://doi.org/10.5067/SWOT-NALT-GDR-2.0", "language": ["en-US"], "modified": "2025-03-31", "programCode": ["026:001"], "publisher": {"@type": "org:Organization", "name": "NASA/JPL/PODAAC"}, "spatial": "-180.0 -77.6 180.0 77.6", "temporal": "2022-12-16T00:00:00Z/2024-03-27T00:00:00Z", "theme": ["SWOT", "geospatial"], "title": "SWOT Level 2 Nadir Altimeter Geophysical Data Record with Waveforms - SGDR"}