{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Gregory K. Miller", "hasEmail": "mailto:gmiller@usgs.gov"}, "description": "Single-beam bathymetry, gravity, and magnetic data along with DGPS navigation data was collected as part of field activity G-1-75-EG in Eastern Gulf of Alaska, Continental Shelf from 06/22/1975 to 08/27/1975, http://walrus.wr.usgs.gov/infobank/g/g175eg/html/g-1-75-eg.meta.html\nThe geophysical source was a Knudsen 12 kHz 320B/R echosounder.\nThese data are reformatted from space-delimited ASCII text files located in the Coastal and Marine Geology Program (CMGP) InfoBank field activity catalog at http://walrus.wr.usgs.gov/infobank/g/g175eg/html/g-1-75-eg.bath.html into MGD77T format provided by the NOAA's National Geophysical Data Center(NGDC). The MGD77T format includes a header (documentation) file (.h77t) and a data file (.m77t). More information regarding this format can be found in the publication listed in the Cross_reference section of this metadata file.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "http://www.ngdc.noaa.gov/mgg/trk/trackline/cecil_h._green/g175eg/mgd77/", "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.fcb6e449-f918-4fe9-8fd2-0db8bd6f47d8.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_fcb6e449-f918-4fe9-8fd2-0db8bd6f47d8", "keyword": ["AK", "Alaska", "Bathymetry", "Eastern Gulf of Alaska", "Eastern Gulf of Alaska, Continental Shelf", "Magnetic Anomalies", "Marine Geology", "Marine Geophysics", "Marine Gravity Field", "Marine Magnetic Field", "Seafloor Topography", "USA", "USGS:fcb6e449-f918-4fe9-8fd2-0db8bd6f47d8", "Water Depth", "bathymetry", "bathymetry and elevation", "bathymetry measurement", "distributions", "geoscientificinformation", "gravimeter measurement", "gravimetry", "magnetic field observations", "magnetometer measurement", "marine geophysics", "oceans", "single-beam echo sounder"], "modified": "2020-10-19T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-162.72705, 54.03096, -137.06030, 60.18927", "theme": ["geospatial"], "title": "g175eg.m77t - MGD77 data file for Geophysical data from field activity G-1-75-EG in Eastern Gulf of Alaska, Continental Shelf from 06/22/1975 to 08/27/1975"}