{
    "tag": 15816,
    "title": "Chirp sub-bottom data collected in Lake Crescent, Washington during USGS field activity 2019-622-FA",
    "pubdate": "20240126",
    "sername": null,
    "series_name": null,
    "issue": "DOI:10.5066\/P9DR46DI",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/pcmsc\/DataReleases\/CMGDS_DR_tool\/DR_P9DR46DI\/2019-622-FA.chirp.metadata.faq.html",
    "format": null,
    "email": null,
    "descript": "Chirp sub-bottom data were collected by the U.S. Geological Survey in August of 2019 in Lake Crescent, Washington.",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "Balster-Gee, Alicia F.",
            "role": "Author"
        },
        {
            "name": "Brothers, Daniel S.",
            "role": "Author"
        },
        {
            "name": "Sherrod, Brian",
            "role": "Author"
        },
        {
            "name": "Ritchie, Andrew C.",
            "role": "Author"
        },
        {
            "name": "Dal Ferro, Peter",
            "role": "Author"
        }
    ],
    "index_term": [
        {
            "thcode": 2,
            "code": "474",
            "name": "geospatial datasets",
            "scope": "Collections of related digital information that are geographically referenced."
        },
        {
            "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": "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": 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": "417",
            "name": "Global Positioning System (GPS) observations",
            "scope": "the use of satellite signals from the Global Positioning System to determine the precise location of a terrestrial receiver."
        },
        {
            "thcode": 61,
            "code": "144",
            "name": "lake",
            "scope": "a body of water surrounded by land and larger than a pond."
        },
        {
            "thcode": 61,
            "code": "479",
            "name": "seismic reflection profiling",
            "scope": "technique for determining the composition and structure of subsurface earth materials based on the transmission and reflection of artificially induced seismic waves; in practice, the seismic waves are generated and received at a one location (in marine geophysical studies, a single ship)."
        }
    ],
    "place_term": [],
    "image": [],
    "fan": [
        "2019-622-FA"
    ]
}