{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "PCMSC Science Data Coordinator", "hasEmail": "mailto:pcmsc_data@usgs.gov"}, "description": "Topographic data were collected by the U.S. Geological Survey (USGS) in 2015 for Little Holland Tract in the Sacramento-San Joaquin River Delta, California. The data were collected on foot using a global positioning system (GPS) backpack platform that consisted of survey-grade Trimble R10 and R7 global navigation satellite system (GNSS) receivers with Zephyr 2 antennas. Orthometric elevations relative to NAVD88 were computed using the National Geodetic Survey Geoid12a, and the final data were projected in Cartesian coordinates using the UTM Zone 10 North (meters) (NAD83[2011]) coordinate system.\u00a0The mean estimated vertical uncertainty of the 2015 USGS GPS backpack survey is 3.5 cm.\u00a0", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/F7RX9954", "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.56671ef1e4b06a3ea36c8bf5.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_56671ef1e4b06a3ea36c8bf5", "keyword": ["Bathymetry and Elevation", "GPS (Global Positioning System)", "GPS measurement", "Global Positioning System (GPS) observations", "Liberty Island", "Little Holland Tract", "Sacramento River Deep Water Ship Channel", "Sacramento-San Joaquin Delta", "Solano County", "USGS:56671ef1e4b06a3ea36c8bf5", "Yolo County", "elevation"], "modified": "2020-10-19T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-121.666347272, 38.310742125, -121.64879356, 38.350117093", "theme": ["geospatial"], "title": "Topographic measurements of Little Holland Tract, Sacramento-San Joaquin Delta, California, 2015, using backpack GPS"}