{
    "tag": 16050,
    "title": "Sea floor maps showing topography, sun-illuminated topographic imagery, and backscatter intensity of the Stellwagen Bank National Marine Sanctuary Region off Boston, Massachusetts",
    "pubdate": "2001",
    "sername": null,
    "series_name": null,
    "issue": "2000-410",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/whcmsc\/open_file_report\/ofr2000-410\/ofr00-410.faq.html",
    "format": null,
    "email": null,
    "descript": "This data set contains the sea floor topographic contours, sun-illuminated topographic imagery, and backscatter intensity generated from a multibeam sonar survey of the Stellwagen Bank National Marine Sanctuary region off Boston, Massachusetts, an area of approximately 1100 square nautical miles. The Stellwagen Bank NMS Mapping Project is designed to provide detailed maps of the Stellwagen Bank region's environments and habitats and the first complete multibeam topographic and sea floor characterization maps of a significant region of the shallow EEZ. Data were collected on four cruises over a two year period from the fall of 1994 to the fall of 1996. The surveys were conducted aboard the Candian Hydrographic Service vessel Frederick G. Creed, a SWATH (Small Waterplane Twin Hull) ship that surveys at speeds of 16 knots. The multibeam data were collected utilizing a Simrad Subsea EM 1000 Multibeam Echo Sounder (95 kHz) that is permanently installed in the hull of the Creed.",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "Valentine, Page C.",
            "role": "Author"
        },
        {
            "name": "Middleton, Tammie J.",
            "role": "Author"
        },
        {
            "name": "Fuller, Sarah J.",
            "role": "Author"
        }
    ],
    "index_term": [
        {
            "thcode": 2,
            "code": "80",
            "name": "bathymetry",
            "scope": "The elevation of the earth's surface beneath a body of water, especially the ocean, typically determined by measurements of depth from the water surface."
        },
        {
            "thcode": 2,
            "code": "474",
            "name": "geospatial datasets",
            "scope": "Collections of related digital information that are geographically referenced."
        },
        {
            "thcode": 2,
            "code": "706",
            "name": "marine geology",
            "scope": "Branch of geology concerned with the composition, geologic history, and earth processes of the ocean floor and the continental margin."
        },
        {
            "thcode": 2,
            "code": "2036",
            "name": "multibeam sonar",
            "scope": "Acoustic technique for determining depths or creating backscatter imagery in a wide swath of seafloor or lakebed centered below the instrument platform."
        },
        {
            "thcode": 2,
            "code": "1025",
            "name": "sea-floor characteristics",
            "scope": "Geomorphic features and geographic, compositional, and textural variation in the materials composing the ocean floor. Includes both large-scale structures (such as seamounts and rises) and fine-scale variations in rocks and deposits on the sea floor."
        },
        {
            "thcode": 15,
            "code": "008",
            "name": "geoscientificInformation",
            "scope": "Information pertaining to earth sciences, for example geophysical features and processes, geology, minerals, sciences dealing with the composition, structure and origin of the earth's rocks, risks of earthquakes, volcanic activity, landslides, gravity information, soils, permafrost, hydrogeology, groundwater, erosion"
        }
    ],
    "place_term": [
        {
            "thcode": 1,
            "code": "f25001",
            "name": "Barnstable",
            "scope": "county",
            "pname": "Massachusetts"
        },
        {
            "thcode": 1,
            "code": "f25009",
            "name": "Essex",
            "scope": "county",
            "pname": "Massachusetts"
        },
        {
            "thcode": 1,
            "code": "f25021",
            "name": "Norfolk",
            "scope": "county",
            "pname": "Massachusetts"
        },
        {
            "thcode": 1,
            "code": "f25023",
            "name": "Plymouth",
            "scope": "county",
            "pname": "Massachusetts"
        },
        {
            "thcode": 1,
            "code": "fOC13",
            "name": "North Atlantic",
            "scope": "ocean or sea",
            "pname": "Atlantic"
        }
    ],
    "image": [
        {
            "name": "https:\/\/pubs.usgs.gov\/of\/2000\/of00-410\/images\/pseudo2.gif",
            "description": "Reduced-size copy of the backscatter image with topography (color indicates backscatter, shading indicates topography) 351x599 pixels, 32-bit RGB true color, 120 kbytes."
        }
    ],
    "fan": []
}