{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Peter N. Schweitzer", "hasEmail": "mailto:pschweitzer@usgs.gov"}, "description": "Aeromagnetic data were collected along flight lines by instruments in an aircraft that recorded magnetic-field values and locations. In the earlier days of surveying, the only way to represent this data was to generate an analog map with contour lines. This dataset is a representation of the digitized contour lines either by following the lines or by choosing the intersection of the contour and flight-line to create a value of the magnetic field. The values presented are latitude, longitude, and map magnetic-field values.", "distribution": [{"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.c4869ed4-81a2-4e11-abd6-c8bd3580d3b6.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_c4869ed4-81a2-4e11-abd6-c8bd3580d3b6", "keyword": ["USGS:c4869ed4-81a2-4e11-abd6-c8bd3580d3b6", "aeromagnetic surveying", "f23003 = Aroostook", "f23019 = Penobscot", "field monitoring stations", "geophysics", "geospatial datasets", "magnetic field (earth)"], "modified": "2020-11-10T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-68.750343322754, 45.999145507812, -68.497360229492, 46.501415252685", "theme": ["geospatial"], "title": "Airborne geophysical survey: Oxbow '57"}