{
    "tag": 14932,
    "title": "Tile index for Alaska coastal orthoimagery and elevation data: Icy Cape to Cape Prince of Wales, 2016",
    "pubdate": "20221115",
    "sername": null,
    "series_name": null,
    "issue": "DOI:10.5066\/P9PGJNE9",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/pcmsc\/DataReleases\/ScienceBase\/DR_P9PGJNE9\/Tile_Index_metadata.faq.html",
    "format": null,
    "email": null,
    "descript": "This part of the data release presents a shapefile that includes a spatial index of orthoimagery and elevation data describing the Alaskan coastline from Icy Cape to Cape Prince of Wales. The data products referenced in this index include orthoimagery, digital surface models, and elevation point clouds which were generated from aerial imagery using structure-from-motion methods. Fairbanks Fodar, a contracted mapping service, collected the aerial imagery in 2016 and created all of the data products referenced here. Due to the enormous extent of this dataset, the products are split into separate files with more manageable sizes. Each polygon in this shapefile index provides a geographic outline of a data file\u2019s coverage, corresponding file name, and data type. Additionally, the orthoimagery and digital surface model files include a link to stream the file using any software that supports access to cloud optimized geotiffs (COGs).",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "Nolan, Matt",
            "role": "Author"
        },
        {
            "name": "Gibbs, Ann E.",
            "role": "Author"
        },
        {
            "name": "Snyder, Alexander G.",
            "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": "1799",
            "name": "coastal processes",
            "scope": "Processes unique to coastal areas including longshore transport, beach erosion, storm surge, shoreline change, delta formation, barrier island migration, beach stabilization by vegetation"
        },
        {
            "thcode": 2,
            "code": "1799",
            "name": "coastal processes",
            "scope": "Processes unique to coastal areas including longshore transport, beach erosion, storm surge, shoreline change, delta formation, barrier island migration, beach stabilization by vegetation"
        },
        {
            "thcode": 2,
            "code": "291",
            "name": "earth sciences",
            "scope": "Broad term for all science related to the study of the earth."
        },
        {
            "thcode": 2,
            "code": "447",
            "name": "geography",
            "scope": "Study of the earth's landforms, topography, and climate, the distribution of flora and fauna, and the distribution, culture, and activities of human populations."
        },
        {
            "thcode": 2,
            "code": "468",
            "name": "geomorphology",
            "scope": "Branch of geology dealing with surface land features and the processes that create and change them."
        },
        {
            "thcode": 2,
            "code": "474",
            "name": "geospatial datasets",
            "scope": "Collections of related digital information that are geographically referenced."
        },
        {
            "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": "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": "2265",
            "name": "structure from motion",
            "scope": "Mathematical analysis, using photogrammetric principles, of multiple images that depict the same subject from different angles to derive geometrical information and relationships in three-dimensional space that are not inherent in any single image. Often used for deriving land elevation or large scale orthoimagery from a collection of aerial photographs."
        },
        {
            "thcode": 15,
            "code": "010",
            "name": "imageryBaseMapsEarthCover",
            "scope": "Base maps, for example land\/earth cover, topographic maps, imagery, unclassified images, annotations, digital ortho imagery"
        },
        {
            "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"
        },
        {
            "thcode": 23,
            "code": "21",
            "name": "Physical Habitats and Geomorphology",
            "scope": "Includes measures of the geologic and structural characteristics of the coast or sea floor, such as the features defined in the Geoform Component of CMECS. Distributions are detailed topographic and bathymetric maps, geolocated photographs, or sea-floor descriptions; Distributions includes maps that interpret observations to categorize areas on the basis of geoform types such as those in CMECS. Assessment types include evaluations of ecological or human use value and can include models that project environmental or economic effects of erosion, climate change, dredging, and other stressors. Predictions are the results of models or projections of future distributions, values, or ecological impacts of physical habitats, including predicted changes due to natural and human forces; they are also from scenario-based models of resource losses, gains, or impacts on ecological or economic values under different management strategies (for example, mining, removal, relocation, or the building of structures)."
        },
        {
            "thcode": 61,
            "code": "112",
            "name": "beach",
            "scope": "a gently sloping shore, generally underlain by sand or gravel and subject to the action of waves and tides."
        },
        {
            "thcode": 61,
            "code": "113",
            "name": "beach ridge",
            "scope": "the ridge defining the landward limit of a current of former beach, often capped by dunes."
        },
        {
            "thcode": 61,
            "code": "118",
            "name": "cliff",
            "scope": "a very steep, vertical, or overhanging slope."
        },
        {
            "thcode": 61,
            "code": "119",
            "name": "coast",
            "scope": "the distinctive terrain between the shore and inland areas; varies in width."
        },
        {
            "thcode": 61,
            "code": "177",
            "name": "shore",
            "scope": "the boundary between an ocean, sea, or lake and the adjacent dry land."
        }
    ],
    "place_term": [],
    "image": [
        {
            "name": "https:\/\/www.sciencebase.gov\/catalog\/file\/get\/636c9e13d34ed907bf6b315a?name=Tile_Index_Example.jpg&allowOpen=true",
            "description": "Example of the Tile Index symbolized by data type and an example of an orthoimagery tile."
        }
    ],
    "fan": []
}