{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Data Coordinator", "hasEmail": "mailto:geomag-data-owner@geohazards.usgs.gov"}, "description": "Movie-maps of low-latitude horizontal-intensity magnetic disturbance are derived from magnetic vector time series data collected at multiple ground-based observatories. Using a technique similar to that used in the calculation of Dst, a quiet time baseline is subtracted from the time series from each observatory. The remaining disturbance time series are shown in a polar coordinate system that accommodates both Earth rotation and the universal time dependence of magnetospheric disturbance. Each magnetic storm recorded in the movie-maps is different. While some standard interpretations about the storm time equatorial ring current appear to apply to certain moments and certain phases of some storms, the movie-maps also show substantial variety in the local time distribution of low-latitude magnetic disturbance, especially during storm commencements and storm main phases.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P9UQZARF", "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.5b228f72e4b092d9652a2228.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_5b228f72e4b092d9652a2228", "keyword": ["GHSC", "Geologic Hazards Science Center", "Geomagnetism Program", "USGS", "USGS:5b228f72e4b092d9652a2228", "earth science", "geomagnetic observatory", "hazard mitigation", "magnetic disturbance", "magnetic field", "magnetic storm", "magnetic vector time series", "real time monitoring"], "modified": "2020-08-31T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-180.0, -90.0, 180.0, 90.0", "theme": ["geospatial"], "title": "USGS Geomagnetism Program: Magnetic Disturbance Movies"}