USGS Geomagnetism Program: Magnetic Disturbance Movies
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.
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[ "010:12" ] |
| contactPoint |
{ "fn": "Data Coordinator", "@type": "vcard:Contact", "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", "title": "Digital Data", "format": "XML", "accessURL": "https://doi.org/10.5066/P9UQZARF", "mediaType": "application/http", "description": "Landing page for access to the data" }, { "@type": "dcat:Distribution", "title": "Original Metadata", "format": "XML", "mediaType": "text/xml", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.5b228f72e4b092d9652a2228.xml" } ] |
| 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 |
{ "name": "U.S. Geological Survey", "@type": "org:Organization" } |
| spatial | -180.0, -90.0, 180.0, 90.0 |
| theme |
[ "geospatial" ] |
| title | USGS Geomagnetism Program: Magnetic Disturbance Movies |
