{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Elizabeth A. Pendleton", "hasEmail": "mailto:ependleton@usgs.gov"}, "description": "These data are qualitatively derived interpretive polygon shapefiles and selected source raster data defining surficial geology, sediment type and distribution, and physiographic zones of the sea floor from Nahant to Northern Cape Cod Bay. Much of the geophysical data used to create the interpretive layers were collected under a cooperative agreement among the Massachusetts Office of Coastal Zone Management (CZM), the U.S. Geological Survey (USGS), Coastal and Marine Geology Program, the National Oceanic and Atmospheric Administration (NOAA), and the U.S. Army Corps of Engineers (USACE). Initiated in 2003, the primary objective of this program is to develop regional geologic framework information for the management of coastal and marine resources. Accurate data and maps of seafloor geology are important first steps toward protecting fish habitat, delineating marine resources, and assessing environmental changes because of natural or human effects. The project is focused on the inshore waters of coastal Massachusetts. Data collected during the mapping cooperative involving the USGS have been released in a series of USGS Open-File Reports (http://woodshole.er.usgs.gov/project-pages/coastal_mass/html/current_map.html). The interpretations released in this study are for an area extending from the southern tip of Nahant to Northern Cape Cod Bay, Massachusetts. A combination of geophysical and sample data including high resolution bathymetry and lidar, acoustic-backscatter intensity, seismic-reflection profiles, bottom photographs, and sediment samples are used to create the data interpretations. Most of the nearshore geophysical and sample data (including the bottom photographs) were collected during several cruises between 2000 and 2008. More information about the cruises and the data collected can be found at the Geologic Mapping of the Seafloor Offshore of Massachusetts Web page: http://woodshole.er.usgs.gov/project-pages/coastal_mass/.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "http://pubs.usgs.gov/of/2012/1157/", "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.4a088ba0-0810-4e5b-9a76-3d3976a4e017.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_4a088ba0-0810-4e5b-9a76-3d3976a4e017", "keyword": ["U.S. Geological Survey Open-File Report 2010-1006", "Massachusetts Bay", "Jeffreys Ledge", "imageryBaseMapsEarthCover", "Winthrop", "Gulf of Maine", "Gloucester", "Woods Hole Coastal and Marine Science Center", "backscatter", "multibeam sonar", "Bigelow Bight", "geospatial datasets", "Plum Island", "Plymouth", "Stellwagen Bank National Marine Sanctuary", "USGS:4a088ba0-0810-4e5b-9a76-3d3976a4e017", "sidescan", "Coastal and Marine Geology Program", "South Essex Ocean Estuary", "Stellwagen Bank", "side scan sonar", "Boston Harbor", "USGS", "mosaic", "Simrad Subsea EM1000", "marine geophysics", "U.S. Geological Survey Open-File Report 2007-1373", "Salem Sound", "image mosaics", "oceans", "Boston Harbor Islands", "GeoTIFF image", "sidescan sonar", "Hull", "composite image", "grey scale", "Duxbury", "U.S. Geological Survey Open-File Report 2009-1072", "North America", "U.S. Geological Survey Data Series 99", "Massachusetts Bay Disposal Site", "U.S. Geological Survey Open-File Report 2005-1293", "Cape Ann", "U.S. Geological Survey", "WHCMSC", "Tillies Bank", "USGS Map I-2734", "Cape Cod Bay", "CMGP", "U.S. Geological Survey Open-File Report 2006-1008", "Boston", "sea-floor acoustic reflectivity", "Salisbury Beach", "sidescan-sonar", "multibeam backscatter", "Klein 3000", "Scituate", "Nahant", "Merrimack River", "sea floor", "Cohasset", "Manomet", "Ipswich Bay", "Atlantic Ocean", "geoscientificInformation", "Provincetown", "Seafloor", "U.S. Geological Survey Open-File Report 2005-1048", "RESON SeaBat 8101"], "modified": "2024-03-18T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-71.081630, 41.920707, -69.916808, 42.894369", "theme": ["geospatial"], "title": "10-m backscatter mosaic produced from backscatter intensity data from sidescan sonar and multibeam datasets (BS_composite_10m.tif GeoTIFF Image; UTM, Zone 19N, WGS 84)"}