{
    "tag": 14681,
    "title": "Sectional Acoustic Backscatter Image (Falsecolor) of the Puerto Rico Trench in a Projected Coordinate System (utm19_30m_mosaic)",
    "pubdate": "2005",
    "sername": null,
    "series_name": null,
    "issue": "2005-1066",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/whcmsc\/open_file_report\/ofr2005-1066\/falsecolor_utm19_30m_mosaic.faq.html",
    "format": null,
    "email": null,
    "descript": "The Puerto Rico Trench is a tectonic plate boundary where the North American Plate slides by and descends under the Caribbean Plate.  Although much of the trench lies within the United States of America's Exclusive Economic Zone (EEZ), surprisingly few surveys have been conducted there during the past 25 years.  This data set is a grey toned surface model image product derived from a process using multibeam bathymetry and acoustic-backscatter imagery data collected during the U.S. Geological Survey (USGS) science cruise 02051 in collaboration with the National Oceanic and Atmospheric Administration (NOAA) Research Cruise RB0208 from 24 September to 30 September 2002, Leg I of III. (Leg II and III: 20030218 to 20030407 and 20030828 to 20030904, respectively).",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "National Oceanic and Atmospheric Administration",
            "role": "Author"
        },
        {
            "name": "U.S. Geological Survey",
            "role": "Author"
        },
        {
            "name": "ten Brink, Uri S.",
            "role": "Author"
        },
        {
            "name": "Worley, Charles R.",
            "role": "Author"
        },
        {
            "name": "Smith, S. M.",
            "role": "Author"
        },
        {
            "name": "Stepka, Thomas",
            "role": "Author"
        },
        {
            "name": "Williams, Glynn",
            "role": "Author"
        }
    ],
    "index_term": [
        {
            "thcode": 2,
            "code": "474",
            "name": "geospatial datasets",
            "scope": "Collections of related digital information that are geographically referenced."
        },
        {
            "thcode": 2,
            "code": "2046",
            "name": "image mosaics",
            "scope": "Composite images formed by overlapping existing images, typically arranged to achieve greater spatial coverage."
        },
        {
            "thcode": 2,
            "code": "707",
            "name": "marine geophysics",
            "scope": "Branch of earth sciences concerned with the physical processes of the oceans and continental margins.  We include here studies of large bodies of brackish and fresh water, such as lakes and rivers."
        },
        {
            "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": "2053",
            "name": "sea-floor acoustic reflectivity",
            "scope": "Acoustic energy received by a sonar system, providing a measure of the roughness of the sea floor."
        }
    ],
    "place_term": [],
    "image": [],
    "fan": []
}