{
    "tag": 19171,
    "title": "Topographic data, aerial imagery, and GPS data collected during uncrewed aircraft system (UAS) operations at Sesuit Marsh, Dennis, Massachusetts, August 12, 2024",
    "pubdate": "20250620",
    "sername": null,
    "series_name": null,
    "issue": "DOI:10.5066\/P1EPMT7Y",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/whcmsc\/SB_data_release\/DR_P1EPMT7Y\/2024021FA_Sesuit_Aug2024_Metadata.faq.html",
    "format": null,
    "email": null,
    "descript": "Small Uncrewed Aircraft Systems (sUAS) were used to collect aerial remote sensing data over Sesuit Marsh in Dennis, MA.  Raw data from aerial surveys include aerial images from natural color (RGB) and multispectral cameras and raw lidar data.  These datasets were processed to produce high resolution digital elevation models (DEM), image mosaics, and lidar point clouds (LPC) to provide local partners with high resolution imagery and elevation data to monitor and identify vegetation cover of a salt marsh on Cape Cod during peak growing season.  A YellowScan Mapper Plus lidar system with integrated RGB camera module were mounted to a DJI Matrice 600 to collect the raw lidar data and true-color imagery.  A MicaSense Altum-PT was then mounted to the DJI Matrice 600 to collect the multispectral reflectance imagery.  Black and white cross-coded ground control points (GCPs) were surveyed using RTK-GPS and RTK-enabled AeroPoints to georeference the model and orthomosaics during post-processing.  This project was supported by grant funding from the Commonwealth of Massachusetts' Executive Office of Energy and Environmental Affairs, Division of Conservation, awarded to Rick Rheinhardt in collaboration with the Cape Cod Conservation District.",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "Cramer, Jennifer M.",
            "role": "Author"
        },
        {
            "name": "Brosnahan, Sandra M.",
            "role": "Author"
        },
        {
            "name": "Ackerman, Seth D.",
            "role": "Author"
        },
        {
            "name": "Over, Jin-Si R.",
            "role": "Author"
        },
        {
            "name": "Millo, Amit",
            "role": "Author"
        },
        {
            "name": "Rheinhardt, Rick",
            "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": "2041",
            "name": "digital elevation models",
            "scope": "Gridded elevation, geographically referenced to the surface of the earth, as digital data"
        },
        {
            "thcode": 2,
            "code": "474",
            "name": "geospatial datasets",
            "scope": "Collections of related digital information that are geographically referenced."
        },
        {
            "thcode": 2,
            "code": "492",
            "name": "GPS measurement",
            "scope": "Determination of distance and location using instruments receiving signals from the Global Positioning System, a system of satellites for identifying earth locations."
        },
        {
            "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": "648",
            "name": "lidar",
            "scope": "Light detection and ranging, an airborne, spaceborne or ground-based laser-ranging technique commonly used for acquiring high-resolution topographic data."
        },
        {
            "thcode": 2,
            "code": "765",
            "name": "multispectral imaging",
            "scope": "A method of remote sensing that obtains optical representations in two or more ranges of frequencies or wave lengths."
        },
        {
            "thcode": 2,
            "code": "2078",
            "name": "navigational data",
            "scope": "Geospatial data indicating the locations of instruments, vessels, aircraft, or other vehicles used to collect scientific observations.  These data include horizontal coordinates in sequence, and may include time or vertical position."
        },
        {
            "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": 2,
            "code": "1281",
            "name": "visible light imaging",
            "scope": "Remote sensing methods using electromagnetic radiation which is visible to the human eye to react with the coating on a photographic plate or film."
        },
        {
            "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": "007",
            "name": "environment",
            "scope": "Environmental resources, protection and conservation, for example environmental pollution, waste storage and treatment, environmental impact assessment, monitoring environmental risk, nature reserves, landscape, water quality, air quality, environmental modeling"
        },
        {
            "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": 15,
            "code": "010",
            "name": "imageryBaseMapsEarthCover",
            "scope": "Base maps, for example land\/earth cover, topographic maps, imagery, unclassified images, annotations, digital ortho imagery"
        }
    ],
    "place_term": [],
    "image": [
        {
            "name": "https:\/\/www.sciencebase.gov\/catalog\/file\/get\/67c9df85d34ed3737708ca1a?name=Landing_browse.jpg&allowOpen=true",
            "description": "Browse image showing reflectance orthomosaic of Sesuit Marsh in Dennis, MA"
        }
    ],
    "fan": [
        "2024-021-FA"
    ]
}