@prefix dcat: . @prefix dct: . @prefix foaf: . @prefix gsp: . @prefix locn: . @prefix vcard: . @prefix xsd: . a dcat:Dataset ; dct:description """The ASTER Global Water Bodies Database (ASTWBD) Version 1 data product provides global coverage of water bodies larger than 0.2 square kilometers at a spatial resolution of 1 arc second (approximately 30 meters) at the equator, along with associated elevation information. \r \r The ASTWBD data product was created in conjunction with the ASTER Global Digital Elevation Model (ASTER GDEM) Version 3 data product by the Sensor Information Laboratory Corporation (SILC) in Tokyo. The ASTER GDEM Version 3 data product was generated using ASTER Level 1A (https://doi.org/10.5067/ASTER/AST_L1A.003) scenes acquired between March 1, 2000, and November 30, 2013. The ASTWBD data product was then generated to correct elevation values of water body surfaces.\r \r To generate the ASTWBD data product, water bodies were separated from land areas and then classified into three categories: ocean, river, or lake. Oceans and lakes have a flattened, constant elevation value. The effects of sea ice were manually removed from areas classified as oceans to better delineate ocean shorelines in high latitude areas. For lake waterbodies, the elevation for each lake was calculated from the perimeter elevation data using the mosaic image that covers the entire area of the lake. Rivers presented a unique challenge given that their elevations gradually step down from upstream to downstream; therefore, visual inspection and other manual detection methods were required. \r \r The geographic coverage of the ASTWBD extends from 83°N to 83°S. Each tile is distributed in GeoTIFF format and referenced to the 1984 World Geodetic System (WGS84)/1996 Earth Gravitational Model (EGM96) geoid. Each data product is provided as a zipped file that contains an attribute file with the water body classification information and a DEM file, which provides elevation information in meters.""" ; dct:identifier "C1575734433-LPDAAC_ECS" ; dct:issued "2011-08-24"^^xsd:date ; dct:language "{en-US}" ; dct:modified "2015-09-30"^^xsd:date ; dct:publisher ; dct:spatial [ a dct:Location ; locn:geometry "POLYGON ((-180.0000 -83.0000, 180.0000 -83.0000, 180.0000 82.0000, -180.0000 82.0000, -180.0000 -83.0000))"^^gsp:wktLiteral ] ; dct:title "ASTER Global Water Bodies Database V001" ; dcat:contactPoint [ a vcard:Organization ; vcard:fn "undefined" ; vcard:hasEmail ] ; dcat:distribution , , , , , , ; dcat:keyword "amerigeo", "amerigeoss", "ckan", "earth-science", "geo", "geoss", "land-surface", "national", "national-geospatial-data-asset", "ngda", "north-america", "topography", "united-states" ; dcat:theme <%7BTerra>, . a dcat:Distribution ; dct:description "Browse image for Earthdata Search" ; dct:format "HTML" ; dct:issued "2020-11-12T04:35:02.048859"^^xsd:dateTime ; dct:modified "2025-11-23T00:40:01.516359"^^xsd:dateTime ; dct:title "Get a related visualization" ; dcat:accessURL ; dcat:mediaType "text/html" . a dcat:Distribution ; dct:description "Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data." ; dct:format "HTML" ; dct:issued "2020-11-12T04:35:02.048851"^^xsd:dateTime ; dct:modified "2025-11-23T00:40:01.515596"^^xsd:dateTime ; dct:title "Download this dataset through Earthdata Search" ; dcat:accessURL ; dcat:mediaType "text/html" . a dcat:Distribution ; dct:description "Search results for publications that cite this dataset by its DOI." ; dct:format "HTML" ; dct:issued "2020-11-12T04:35:02.048826"^^xsd:dateTime ; dct:modified "2025-11-23T00:40:01.513901"^^xsd:dateTime ; dct:title "Google Scholar search results" ; dcat:accessURL ; dcat:mediaType "text/html" . a dcat:Distribution ; dct:description "The ASTER home page is maintained through NASA's Jet Propulsion Laboratory and documents various aspects of the ASTER mission. " ; dct:format "HTML" ; dct:issued "2020-11-12T04:35:02.048846"^^xsd:dateTime ; dct:modified "2025-11-23T00:40:01.515208"^^xsd:dateTime ; dct:title "The dataset's project home page" ; dcat:accessURL ; dcat:mediaType "text/html" . a dcat:Distribution ; dct:description "The LP DAAC website provides detailed information on discovery, distribution, access, and support of land data products." ; dct:format "HTML" ; dct:issued "2020-11-12T04:35:02.048841"^^xsd:dateTime ; dct:modified "2025-11-23T00:40:01.514798"^^xsd:dateTime ; dct:title "The dataset's project home page" ; dcat:accessURL ; dcat:mediaType "text/html" . a dcat:Distribution ; dct:description "The technical information in the User's Guide enables users to interpret and use the data products. " ; dct:format "PDF" ; dct:issued "2020-11-12T04:35:02.048855"^^xsd:dateTime ; dct:modified "2025-11-23T00:40:01.515985"^^xsd:dateTime ; dct:title "View this dataset's user's guide" ; dcat:accessURL ; dcat:mediaType "application/pdf" . a dcat:Distribution ; dct:description "The LP DAAC product page provides information on Science Data Set layers and links for user guides, ATBDs, data access, tools, customer support, etc. " ; dct:format "HTML" ; dct:issued "2020-11-12T04:35:02.048836"^^xsd:dateTime ; dct:modified "2025-11-23T00:40:01.514331"^^xsd:dateTime ; dct:title "This dataset's landing page" ; dcat:accessURL ; dcat:mediaType "text/html" . a foaf:Agent ; foaf:name "US Migrating" .