{
    "tag": 19148,
    "title": "River-transect locations used in spatial analyses of geomorphic change along the lower, middle, and upper reaches of the Elwha River, Washington",
    "pubdate": "20250423",
    "sername": null,
    "series_name": null,
    "issue": "doi:10.5066\/P13RXGHA",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/pcmsc\/DataReleases\/ScienceBase\/DR_P13RXGHA\/Elwha_transect_location_metadata.faq.html",
    "format": null,
    "email": null,
    "descript": "This data release provides transect locations used for GIS analyses of geomorphic change along the Elwha River, Washington conducted by East and others (2018). The transect locations are represented by fixed points, spaced 250 meters (m) apart, placed along the length of the middle and lower river reaches (excluding the Lake Mills and Lake Aldwell reservoirs) and along a control reach in Geyser Valley, upstream of the historic Elwha and Glines Canyon dam sites. To account for migration of the river channel through time, metrics such as river width were calculated from transects generated within a GIS at each point location, oriented orthogonal to the general river-corridor orientation at the time of image collection.",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "Foxgrover, Amy C.",
            "role": "Author"
        },
        {
            "name": "East, Amy E.",
            "role": "Author"
        },
        {
            "name": "Ritchie, Andrew C.",
            "role": "Author"
        }
    ],
    "index_term": [
        {
            "thcode": 2,
            "code": "15",
            "name": "aerial photography",
            "scope": "The process of taking pictures with a camera from an aircraft. Use for both the process of photography from the air and the images produced by the process."
        },
        {
            "thcode": 2,
            "code": "375",
            "name": "field inventory and monitoring",
            "scope": "Repeated observation or sampling at a site, on a scheduled or event basis, for study and analysis.  In general, this category excludes sampling programs in which materials are obtained in the field and brought back to a laboratory for study and analysis."
        },
        {
            "thcode": 2,
            "code": "575",
            "name": "image collections",
            "scope": "Visible representations of objects or earth properties produced by cameras, spectral instruments, or as graphical representations of measurements."
        },
        {
            "thcode": 2,
            "code": "2046",
            "name": "image mosaics",
            "scope": "Composite images formed by overlapping existing images, typically arranged to achieve greater spatial coverage."
        },
        {
            "thcode": 2,
            "code": "981",
            "name": "remote sensing",
            "scope": "Acquiring information about a natural feature or phenomenon, such as the Earth's surface, without actually being in contact with it. USGS remote sensing is usually carried out with airborne or spaceborne sensors or cameras."
        },
        {
            "thcode": 2,
            "code": "1001",
            "name": "river reaches",
            "scope": "Continuous parts of streams between two specified points."
        },
        {
            "thcode": 2,
            "code": "1002",
            "name": "river systems",
            "scope": "Long water courses including main streams and tributaries."
        },
        {
            "thcode": 15,
            "code": "006",
            "name": "elevation",
            "scope": "Height above or below sea level, for example altitude, bathymetry, digital elevation models, slope, derived products, DEMs, TINs"
        },
        {
            "thcode": 15,
            "code": "012",
            "name": "inlandWaters",
            "scope": "Inland water features, drainage systems and characteristics, for example rivers and glaciers, salt lakes, water utilization plans, dams, currents, floods and flood hazards, water quality, hydrographic charts, watersheds, wetlands, hydrography"
        },
        {
            "thcode": 61,
            "code": "707",
            "name": "geographic information systems (GIS)",
            "scope": "geographic subdiscipline that employs computer systems to manage, analyze, and display spatial information."
        },
        {
            "thcode": 61,
            "code": "165",
            "name": "river bank",
            "scope": "the land adjacent to a river."
        },
        {
            "thcode": 61,
            "code": "167",
            "name": "river channel",
            "scope": "the area between the banks of a river, where flow is generally confined except during flood stage."
        },
        {
            "thcode": 61,
            "code": "314",
            "name": "sediment deposition",
            "scope": "the effects of deposition on natural sedimentary environments."
        }
    ],
    "place_term": [],
    "image": [
        {
            "name": "https:\/\/www.sciencebase.gov\/catalog\/file\/get\/67102ac4d34edd2692096271?name=Elwha_margins_and_transect_overview.png&allowOpen=true",
            "description": "Map of Elwha River margins and transect locations overlying 2013 NAIP imagery."
        }
    ],
    "fan": []
}