{
    "tag": 17179,
    "title": "Survey lines along which seismic reflection data were collected in 2012 by the U.S. Geological Survey in the Connecticut River during field activity 2012-024-FA  (Polyline Shapefile)",
    "pubdate": "2017",
    "sername": null,
    "series_name": null,
    "issue": "DOI:10.5066\/F7PG1Q7V",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/whcmsc\/field_activities\/2012_024_fa\/2012-024-FA_SeismicTracklines.faq.html",
    "format": null,
    "email": null,
    "descript": "A geophysical and geological survey was conducted at the mouth of the Connecticut River from Old Saybrook to Essex, Connecticut, in September 2012. Approximately 230 linear kilometers of digital Chirp subbottom (seismic-reflection) and 234-kilohertz interferometric sonar (bathymetric and backscatter) data were collected along with sediment samples, riverbed photographs, and (or) video at 88 sites within the geophysical survey area. Sediment grab samples were collected at 72 of the 88 sampling sites, video was acquired at 68 sites, and photographs of the river bottom were taken at 38 sites. These survey data are used to characterize the riverbed by identifying sediment-texture and riverbed morphology. More information can be found on the web page for the Woods Hole Coastal and Marine Science Center field activity: https:\/\/cmgds.marine.usgs.gov\/fan_info.php?fan=2012-024-FA. Data collected during the 2012 survey can be obtained here: https:\/\/doi.org\/10.5066\/F7PG1Q7V.",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "U.S. Geological Survey",
            "role": "Author"
        },
        {
            "name": "Ackerman, Seth D.",
            "role": "Author"
        },
        {
            "name": "Foster, David S.",
            "role": "Author"
        },
        {
            "name": "Moore, Eric M.",
            "role": "Author"
        },
        {
            "name": "Irwin, Barry J.",
            "role": "Author"
        },
        {
            "name": "Blackwood, Dann S.",
            "role": "Author"
        },
        {
            "name": "Sherwood, Christopher R.",
            "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": "2078",
            "name": "navigational data",
            "scope": "Geospatial data indicating the locations of instruments, vessels, aircraft, or other vehicles used to collect scientific observations.  These data include horizontal coordinates in sequence, and may include time or vertical position."
        },
        {
            "thcode": 2,
            "code": "1042",
            "name": "seismic methods",
            "scope": "Procedures used to record and study earthquakes or earth vibrations including those that are artificially induced."
        },
        {
            "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": "013",
            "name": "location",
            "scope": "Positional information and services, for example addresses, geodetic networks, geodetic control points, postal zones and services, place names, geographic names"
        },
        {
            "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"
        },
        {
            "thcode": 61,
            "code": "132",
            "name": "estuary",
            "scope": "the lower course of a river, subject to tides and mixing of fresh and salt water."
        },
        {
            "thcode": 61,
            "code": "719",
            "name": "marine geology",
            "scope": "used for geological and related studies of ocean basins and margins."
        },
        {
            "thcode": 61,
            "code": "738",
            "name": "marine geophysics",
            "scope": "used for geophysical and related studies of ocean basins and margins."
        },
        {
            "thcode": 61,
            "code": "164",
            "name": "river",
            "scope": "a stream that is larger than a creek."
        }
    ],
    "place_term": [],
    "image": [
        {
            "name": "https:\/\/cmgds.marine.usgs.gov\/data\/field-activity-data\/2012-024-FA\/data\/seismics\/2012-024-FA_SeismicTracklines_browse.jpg",
            "description": "EdgeTech 424 trackline navigation in the Connecticut River."
        }
    ],
    "fan": [
        "2012-024-FA"
    ]
}