{
  "accessLevel": "public",
  "bureauCode": [
    "010:12"
  ],
  "contactPoint": {
    "@type": "vcard:Contact",
    "fn": "Christopher Sherwood",
    "hasEmail": "mailto:csherwood@usgs.gov"
  },
  "description": "Low-altitude (30-120 meters above ground level) digital images of Town Neck Beach in Sandwich, Massachusetts, were obtained with a series of cameras mounted on small unmanned aerial systems (UAS, also known as a drone). Imagery was collected at close to low tide on five days to observe changes in beach and dune morphology. The images were geolocated by using the single-frequency geographic positioning system aboard the UAS. Ground control points (GCPs) were established by using temporary targets on the ground, which were located by using a real-time kinematic global navigation satellite system (RTK-GNSS) base station and rovers. The GCPs can be used as constraints during photogrammetric processing. Transect points were collected by using the same RTK-GNSS system; these can be used to evaluate photogrammetric products. This data release includes georeferenced images, image-location files, GCPs, and transect points. Collection of these data was supported by the U.S. Geological Survey Coastal/Marine Hazards and Resources Program and conducted under U.S. Geological Survey field activity numbers 2016-013-FA, 2016-043-FA, 2016-053-FA, 2016-054-FA and 2016-055-FA.",
  "distribution": [
    {
      "@type": "dcat:Distribution",
      "accessURL": "https://doi.org/10.5066/P9CJOMBM",
      "description": "Landing page for access to the data",
      "format": "XML",
      "mediaType": "application/http",
      "title": "Digital Data"
    },
    {
      "@type": "dcat:Distribution",
      "description": "The metadata original format",
      "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.5d03964be4b0e3d311568090.xml",
      "format": "XML",
      "mediaType": "text/xml",
      "title": "Original Metadata"
    }
  ],
  "identifier": "http://datainventory.doi.gov/id/dataset/USGS_5d03964be4b0e3d311568090",
  "keyword": [
    "CMGP",
    "Coastal and Marine Geology Program",
    "Coastal/Marine Hazards and Resources Program",
    "DJI Phantom 3 quadcopter",
    "FC300X",
    "JPEG",
    "Massachusetts",
    "Sandwich",
    "Town Neck Beach",
    "U.S. Geological Survey",
    "UAS",
    "USA",
    "USGS",
    "USGS:5d03964be4b0e3d311568090",
    "Unmanned aerial system",
    "WHCMSC",
    "Woods Hole Coastal and Marine Science Center",
    "aerial and satellite photography",
    "aerial imagery",
    "aerial photography",
    "field activity number 2016-054-FA",
    "geoscientificInformation",
    "geotagged photos",
    "image collections",
    "location",
    "low-altitude aerial imagery",
    "oceans",
    "photographs",
    "photos",
    "remote sensing",
    "shoreline",
    "shoreline photographs"
  ],
  "modified": "2022-07-07T00:00:00Z",
  "publisher": {
    "@type": "org:Organization",
    "name": "U.S. Geological Survey"
  },
  "spatial": "-70.4885, 41.7621, -70.4727, 41.7717",
  "theme": [
    "geospatial"
  ],
  "title": "Geotagged Low-Altitude Aerial Imagery From Unmanned Aerial Systems Flights Over Town Neck Beach, in Sandwich, Massachusetts, on January 25, 2016"
}