{
  "accessLevel": "public",
  "bureauCode": [
    "010:12"
  ],
  "contactPoint": {
    "@type": "vcard:Contact",
    "fn": "Victoria E Langenheim",
    "hasEmail": "mailto:zulanger@usgs.gov"
  },
  "description": "This data release contains gridded aeromagnetic data from a dataset that merges two aeromagnetic surveys of northeastern California.  Data from the Alturas and Burney surveys were gridded and merged to provide a continuous, detailed aeromagnetic dataset of the region.  The merged dataset was then corrected for the inclination of the Earth's magnetic field (reduced to pole or rtp); match-filtering of the merged rtp gridded dataset provides three dipole-equivalent source layers at 0.85 km (shallow), 3.28 km (medium), and 16.4 (deep) km.  Magnetization boundaries were calculated using the maximum horizontal gradient method on the match-filtered gridded data. Lastly, a magnetic field caused by magnetic terrain was calculated to compare with observed magnetic field gridded values.",
  "distribution": [
    {
      "@type": "dcat:Distribution",
      "accessURL": "https://doi.org/10.5066/P9TQGRDW",
      "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.6227acd4d34ee0c6b38b7fdd.xml",
      "format": "XML",
      "mediaType": "text/xml",
      "title": "Original Metadata"
    }
  ],
  "identifier": "http://datainventory.doi.gov/id/dataset/USGS_6227acd4d34ee0c6b38b7fdd",
  "keyword": [
    "Alturas",
    "Canby",
    "USGS:6227acd4d34ee0c6b38b7fdd",
    "aeromagnetic surveying",
    "crust (earth)",
    "earthquakes",
    "geoscientificInformation",
    "magnetic anomaly",
    "magnetic field (earth)",
    "magnetometer measurement",
    "neotectonic processes"
  ],
  "modified": "2023-08-14T00:00:00Z",
  "publisher": {
    "@type": "org:Organization",
    "name": "U.S. Geological Survey"
  },
  "spatial": "-122.0218, 40.4056, -119.9731, 42.0122",
  "theme": [
    "geospatial"
  ],
  "title": "Aeromagnetic and derivative gridded data, and magnetization boundaries of northeastern California"
}