{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "U.S. Geological Survey", "hasEmail": "mailto:whsc_data_contact@usgs.gov"}, "description": "This is a tiled collection of the 3D Elevation Program (3DEP) covering Alaska only,\nand is 5-meter resolution. The 3DEP data holdings serve as the elevation layer of The\nNational Map, and provide foundational elevation information for earth science studies and\nmapping applications in the United States. Scientists and resource managers use 3DEP data\nfor hydrologic modeling, resource monitoring, mapping and visualization, and many other\napplications. The elevations in this DEM represent the topographic bare-earth surface. USGS\nstandard 5-meter DEMs are produced exclusively from interferometric synthetic aperture radar\n(Ifsar) source data of 5-meter or higher resolution. Five-meter DEM surfaces are seamless\nwithin collection projects, but, not necessarily seamless across projects. This DEM is\ndelivered in the original resolution, with the original spatial reference. All elevation\nunits have been converted to meters. These data may be used as the source of updates to the\nseamless 1/3 arc-second DEM layer, which serves as the elevation layer of The National Map.\nOther 3DEP products are nationally seamless DEMs in resolutions of 1 and 2 arc seconds.\nThese seamless DEMs were referred to as the National Elevation Dataset (NED) from about 2000\nthrough 2015 at which time they became the seamless DEM layers under the 3DEP program and\nthe NED name and system were retired. Other 3DEP products in Alaska include lidar point\ncloud and interferometric synthetic aperture radar (Ifsar) digital surface models and\nintensity images. All 3DEP products are public domain.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://www.usgs.gov/3d-elevation-program", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", "title": "Digital Data"}, {"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.e250fffe-ed32-4627-a3e6-9474b6dc6f0b.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_e250fffe-ed32-4627-a3e6-9474b6dc6f0b", "keyword": ["Bare Earth", "Cartography", "DEM", "Digital Elevation Model", "Digital Mapping", "Digital Terrain Model", "Elevation", "Elevation Theme", "GIS", "Geodata", "High Resolution", "Hydro-Flattened", "IFSAR", "Interferometric Synthetic Aperture Radar", "LIDAR", "Light Detection and Ranging", "Mapping", "NED", "NGDA", "NGDAID185", "National Elevation Dataset", "National Geospatial Data Asset", "Raster", "Terrain Elevation", "Topographic Surface", "Topography", "U.S. Geological Survey", "US", "USGS", "USGS:e250fffe-ed32-4627-a3e6-9474b6dc6f0b", "United States", "elevation"], "modified": "2025-02-14T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-170.00, 50.00, -127.00, 72.00", "theme": ["geospatial"], "title": "5 Meter Alaska Digital Elevation Models (DEMs) - USGS National Map 3DEP Downloadable Data Collection"}