{
    "tag": 17217,
    "title": "Post-stack migrated SEG-Y multi-channel seismic data collected by the U.S. Geological Survey in U.S. Atlantic Seaboard in 2014",
    "pubdate": "2017",
    "sername": null,
    "series_name": null,
    "issue": "DOI:10.5066\/F7V69HHS",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/whcmsc\/field_activities\/2014_011_fa\/2014-011-FA_poststmsegy_meta.faq.html",
    "format": null,
    "email": null,
    "descript": "In summer 2014, the U.S. Geological Survey conducted a 21-day geophysical program in deep water along the Atlantic continental margin by using R\/V Marcus G. Langseth (Field Activity Number 2014-011-FA).\u00a0The purpose of the seismic program was to collect multichannel seismic reflection and refraction data to determine sediment thickness. These data enable the United States to delineate its Extended Continental Shelf (ECS) along the Atlantic margin.\u00a0The same data can also be used to understand large submarine landslides and therefore assess their potential tsunami hazard for infrastructure and communities living along the eastern seaboard.\u00a0Supporting geophysical data were collected as marine magnetic data, gravity data, 3.5-kilohertz shallow seismic reflections, multibeam echo sounder bathymetry, and multibeam backscatter.\u00a0  The survey was conducted from water depths of approximately 1,500 meters to abyssal seafloor depths greater than 5,000 meters. Approximately 2,761 kilometers of multi-channel seismic data was collected along with 30 sonobuoy profiles.  This field program had two primary objectives: (1) to collect some of the data necessary to establish the outer limits of the U.S. Continental Shelf, or Extended Continental Shelf, as defined by Article 76 of the United Nations Convention of the Law of the Sea and (2) to study the sudden mass transport of sediments down the continental margin as submarine landslides that pose potential tsunamigenic hazards to the Atlantic and Caribbean coastal communities.",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "U.S. Geological Survey",
            "role": "Author"
        },
        {
            "name": "Arsenault, Matthew A.",
            "role": "Author"
        },
        {
            "name": "Miller, Nathaniel C.",
            "role": "Author"
        },
        {
            "name": "Hutchinson, Deborah R.",
            "role": "Author"
        },
        {
            "name": "Baldwin, Wayne E.",
            "role": "Author"
        },
        {
            "name": "Moore, Eric M.",
            "role": "Author"
        },
        {
            "name": "Foster, David S.",
            "role": "Author"
        },
        {
            "name": "O'Brien, Thomas F.",
            "role": "Author"
        },
        {
            "name": "Fortin, W. F.",
            "role": "Author"
        }
    ],
    "index_term": [
        {
            "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": "1045",
            "name": "seismic reflection methods",
            "scope": "Geophysical technique to study the subsurface of the earth using sound waves induced by explosives, vibrating devices, or percussive equipment.  The reflections of the sound waves from the boundaries of different rocks are measured."
        },
        {
            "thcode": 2,
            "code": "2054",
            "name": "sub-bottom profiling",
            "scope": "Methods of imaging the structure of sediments below the sea floor  or lakebed using ship-borne or towed sensors with a variety of sound sources."
        },
        {
            "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"
        },
        {
            "thcode": 15,
            "code": "014",
            "name": "oceans",
            "scope": "Features and characteristics of salt water bodies (excluding inland waters), for example tides, tidal waves, coastal information, reefs, maritime, outer continental shelf submerged lands, shoreline"
        }
    ],
    "place_term": [],
    "image": [
        {
            "name": "https:\/\/cmgds.marine.usgs.gov\/data\/field-activity-data\/2014-011-FA\/data\/seismics\/2014-011-FA_poststmsegy.jpg",
            "description": "Thumbnail image of multi-channel seismic data collected by the U.S. Geological Survey on the R\/V Marcus G. Langseth in 2014."
        }
    ],
    "fan": [
        "2014-011-FA"
    ]
}