{
    "tag": 8325,
    "title": "Archive of Digital Boomer Seismic Reflection Data Collected During USGS Cruises 94CCT01 and 95CCT01, Eastern Texas and Western Louisiana, 1994 and 1995",
    "pubdate": "2004",
    "sername": null,
    "series_name": null,
    "issue": "93",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/spcmsc\/ds-93metadata.faq.html",
    "format": null,
    "email": null,
    "descript": "In June of 1994 and August and September of 1995, the U.S. Geological Survey, in cooperation with the University of Texas Bureau of Economic Geology, conducted geophysical surveys of the Sabine and Calcasieu Lake areas and the Gulf of Mexico offshore eastern Texas and western Louisiana. This report serves as an archive of unprocessed digital boomer seismic reflection data, trackline maps, navigation files, observers' logbooks, GIS information, and formal FGDC metadata. In addition, a filtered and gained GIF image of each seismic profile is provided.  The archived trace data are in standard Society of Exploration Geophysicists (SEG) SEG-Y format (Barry and others, 1975) and may be downloaded and processed with commercial or public domain software such as Seismic Unix (SU). Examples of SU processing scripts and in-house (USGS) software for viewing SEG-Y files (Zihlman, 1992) are also provided. Processed profile images, trackline maps, navigation files, and formal metadata may be viewed with a web browser. Scanned handwritten logbooks and Field Activity Collection System (FACS) logs may be viewed with Adobe Reader.  For more information on the seismic surveys see http:\/\/walrus.wr.usgs.gov\/infobank\/g\/g194gm\/html\/g-1-94-gm.meta.html and http:\/\/walrus.wr.usgs.gov\/infobank\/g\/g195gm\/html\/g-1-95-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": "Calderon, Karynna",
            "role": "Author"
        },
        {
            "name": "Dadisman, Shawn V.",
            "role": "Author"
        },
        {
            "name": "Kindinger, Jack L.",
            "role": "Author"
        },
        {
            "name": "Flocks, James G.",
            "role": "Author"
        },
        {
            "name": "Morton, Robert A.",
            "role": "Author"
        },
        {
            "name": "Wiese, Dana S.",
            "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\/2004\/93\/maps\/all.jpg",
            "description": "Trackline map of boomer seismic reflection data collected during USGS Cruises 94CCT01 and 95CCT01. These data were collected in Sabine Lake, Sabine Pass, the Neches River, Black Bayou, Calcasieu Lake, and the Gulf of Mexico offshore eastern Texas and western Louisiana in June of 1994 and August and September of 1995. This map is set in geographic coordinates, NAD83 (unprojected), and was created at a scale of 1:600,000. It was created using ESRI GIS software ArcView 3.2 and 8.1, exported to Adobe Illustrator for further editing, and saved in JPEG format. The coastline layer was derived from 1:100,000 DLGs. The USGS is not the originator of all layers used in creating this map. The U.S. states layer is an Environmental Systems Research Institute (ESRI) dataset. The Texas hydrography layer is a Texas General Land Office (GLO)\/Texas Department of Transportation (DOT) dataset. The Louisiana waterbodies layer is a Louisiana Oil Spill Coordinator's Office (LOSCO) dataset derived from ESRI\/Geographic Data Technology, Inc. (GDT) data."
        }
    ],
    "fan": [
        "94CCT01",
        "95CCT01"
    ]
}