{
    "tag": 18078,
    "title": "Sound velocity profiles - locations, images, and text files for sound velocity profiles calculated from XBT and CTD casts conducted during USGS field activities 2017-001-FA and 2017-002 FA.",
    "pubdate": "2020",
    "sername": null,
    "series_name": null,
    "issue": "DOI:10.5066\/P9Y1MSTN",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/whcmsc\/SB_data_release\/DR_P9Y1MSTN\/2017-001-FA_2017-002-FA_SVPdata_meta.faq.html",
    "format": null,
    "email": null,
    "descript": "In spring and summer 2017, the U.S. Geological Survey\u2019s Gas Hydrates Project conducted two cruises aboard the research vessel Hugh R. Sharp to explore the geology, chemistry, ecology, physics, and oceanography of sea-floor methane seeps and water column gas plumes on the northern U.S. Atlantic margin between the Baltimore and Keller Canyons. Split-beam and multibeam echo sounders and a chirp subbottom profiler were deployed during the cruises to map water column backscatter, sea-floor bathymetry and backscatter, and subsurface stratigraphy associated with known and undiscovered sea-floor methane seeps. The first cruise, known as  the Interagency Mission for Methane Research on Seafloor Seeps and designated as field activity 2017-001-FA, was conducted from May 4 to May 11, 2017, and acquired geophysical data to support remotely operated vehicle exploration of seep sites using the Global Explorer, which is operated by Oceaneering International, Inc. Geophysical operations during cruise 2017-002-FA from August 25 to September 6, 2017, were also focused on mapping water column methane plumes, sea-floor seep sites, and subseafloor strata, but primarily supported conductivity, temperature, and depth instrument deployment, surface-water methane-concentration mapping, and water-sampling operations as part of a collaborative study with the University of Rochester  of the effect of methane seepage on ocean water biogeochemistry. The National Oceanic and Atmospheric Administration\u2019s Office of Ocean Exploration and Research partially sponsored cruise 2017-001-FA, and the U.S. Department of Energy partially sponsored both cruises.",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "U.S. Geological Survey",
            "role": "Author"
        },
        {
            "name": "Baldwin, Wayne E.",
            "role": "Author"
        },
        {
            "name": "Moore, Eric M.",
            "role": "Author"
        },
        {
            "name": "Worley, Charles R.",
            "role": "Author"
        },
        {
            "name": "Nichols, Alexander R.",
            "role": "Author"
        },
        {
            "name": "Ruppel, Carolyn D.",
            "role": "Author"
        }
    ],
    "index_term": [
        {
            "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": "818",
            "name": "ocean sciences",
            "scope": "Sciences involved in the study of geological, biological, chemical, and physical characteristics and processes of the oceans."
        },
        {
            "thcode": 2,
            "code": "2081",
            "name": "profiles",
            "scope": "Observations or calculations given for a series of depths, at or near the same horizontal position."
        },
        {
            "thcode": 2,
            "code": "2080",
            "name": "sound velocity",
            "scope": "Estimates of the velocity of sound in water, indexed by depth at a specific location, usually calculated from other water properties."
        },
        {
            "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": "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"
        }
    ],
    "place_term": [],
    "image": [
        {
            "name": "https:\/\/www.sciencebase.gov\/catalog\/file\/get\/5e1e05d7e4b0ecf25c610cc2\/?name=2017-001-FA_2017-002-FA_SVPdata_browse.jpg",
            "description": "Example SVP profile image."
        }
    ],
    "fan": [
        "2017-001-FA",
        "2017-002-FA"
    ]
}