{"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.9bde81d8-dedb-4181-bde5-eb1bdca6b240.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_9bde81d8-dedb-4181-bde5-eb1bdca6b240", "keyword": ["USGS:9bde81d8-dedb-4181-bde5-eb1bdca6b240", "aeromagnetic surveying", "f18041 = Fayette", "f18047 = Franklin", "f18075 = Jay", "f18135 = Randolph", "f18161 = Union", "f18177 = Wayne", "f39009 = Athens", "f39011 = Auglaize", "f39017 = Butler", "f39021 = Champaign", "f39023 = Clark", "f39027 = Clinton", "f39037 = Darke", "f39041 = Delaware", "f39045 = Fairfield", "f39047 = Fayette", "f39049 = Franklin", "f39057 = Greene", "f39065 = Hardin", "f39073 = Hocking", "f39083 = Knox", "f39089 = Licking", "f39091 = Logan", "f39097 = Madison", "f39101 = Marion", "f39107 = Mercer", "f39109 = Miami", "f39113 = Montgomery", "f39117 = Morrow", "f39127 = Perry", "f39129 = Pickaway", "f39135 = Preble", "f39141 = Ross", "f39149 = Shelby", "f39159 = Union", "f39165 = Warren", "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": "-85.096664428711, 39.399154663086, -82.242317199707, 40.52808380127", "theme": ["geospatial"], "title": "Airborne geophysical survey: Columbus ARMS"}