{
    "tag": 8301,
    "title": "Archive of Digital Chirp Subbottom Profile Data Collected During USGS Cruises 10CCT01, 10CCT02, and 10CCT03, Mississippi and Alabama Gulf Islands, March and April 2010",
    "pubdate": "2011",
    "sername": null,
    "series_name": null,
    "issue": "611",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/spcmsc\/ds-611metadata.faq.html",
    "format": null,
    "email": null,
    "descript": "In March and April of 2010 the U.S. Geological Survey (USGS), in cooperation with the U.S. Army Corps of Engineers (USACE), conducted geophysical surveys to investigate the geologic controls on island framework from just east of Cat Island, Mississippi, to Dauphin Island, Alabama, as part of a broader USGS study on Coastal Change and Transport (CCT). This report serves as an archive of unprocessed digital Chirp seismic reflection data, trackline maps, navigation files, Geographic Information System (GIS) files, Field Activity Collection System (FACS) logs, and formal Federal Geographic Data Committee (FGDC) metadata. Gained (showing a relative increase in signal amplitude) digital images of the subbottom profiles are also provided.  For more information on the seismic surveys see http:\/\/walrus.wr.usgs.gov\/infobank\/c\/c110gm\/html\/c-1-10-gm.meta.html, http:\/\/walrus.wr.usgs.gov\/infobank\/m\/m210gm\/html\/m-2-10-gm.meta.html, and http:\/\/walrus.wr.usgs.gov\/infobank\/i\/i310gm\/html\/i-3-10-gm.meta.html  These data are also available via GeoMapApp (http:\/\/www.geomapapp.org\/) and Virtual Ocean ( http:\/\/www.virtualocean.org\/) earth science exploration and visualization applications.",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "Forde, Arnell S.",
            "role": "Author"
        },
        {
            "name": "Dadisman, Shawn V.",
            "role": "Author"
        },
        {
            "name": "Flocks, James G.",
            "role": "Author"
        },
        {
            "name": "Wiese, Dana S.",
            "role": "Author"
        },
        {
            "name": "DeWitt, Nancy T.",
            "role": "Author"
        },
        {
            "name": "Pfeiffer, William R.",
            "role": "Author"
        },
        {
            "name": "Kelso, Kyle W.",
            "role": "Author"
        },
        {
            "name": "Thompson, Phillip R.",
            "role": "Author"
        },
        {
            "name": "U.S. Geological Survey",
            "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": 23,
            "code": "3",
            "name": "Distributions",
            "scope": "Locations or patterns of a feature of interest across space and (or) time. These data can include point data, lines, polygons, and temporal data at any scale relevant to CMSP and can be produced by observation, interpolation, or modeling. Distributions can also include maps or statistics of climatology, the environmental values that are expected to be observed at the present time."
        },
        {
            "thcode": 23,
            "code": "23",
            "name": "Substrate",
            "scope": "Represents the character and composition of the surface and near surface of the sea floor in subtidal or intertidal areas, as defined in the Substrate Component of CMECS or in similar classification systems. Distributions are records of substrate characteristics based on visual or photographic inspection or on analysis of samples and cores, and they also include interpretive maps classifying areas on the basis of combinations of observations, hydrodynamic models, or geological models. Assessments include evaluations of present ecological or economic values of substrate distributions, drivers of substrate change, and functions of substrates. Predictions are the results of models or projections of future substrate distributions, values, or ecological impacts, including predicted substrate changes due to natural and human forces including erosion, accretion, sea-level change, extraction, trawling, or other factors; and they are the results of scenario-based models of substrate changes on ecological or economic values under different management strategies or other human alterations."
        },
        {
            "thcode": 61,
            "code": "738",
            "name": "marine geophysics",
            "scope": "used for geophysical and related studies of ocean basins and margins."
        }
    ],
    "place_term": [],
    "image": [
        {
            "name": "https:\/\/pubs.usgs.gov\/ds\/611\/maps\/cruisenav\/10cct01_03_location.jpg",
            "description": "Location map (fig. 2) of all digital subbottom profile data collected during USGS field activities 10CCT01, 10CCT02, and 10CCT03. This map was created at a scale of 1:726,775."
        }
    ],
    "fan": [
        "10CCT01",
        "10CCT02",
        "10CCT03"
    ]
}