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.
Complete Metadata
| 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"
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{
"@type": "dcat:Distribution",
"title": "Original Metadata",
"format": "XML",
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"downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.5b228f72e4b092d9652a2228.xml"
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|
| 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 |
