USGS Geomagnetism Program: Magnetic Disturbance Movies
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.
Resources
| Name |
Format |
Description |
Link |
|
55 |
The metadata original format |
https://data.usgs.gov/datacatalog/metadata/USGS.5b228f72e4b092d9652a2228.xml |
|
55 |
Landing page for access to the data |
https://doi.org/10.5066/P9UQZARF |
Tags
- magnetic-disturbance
- ghsc
- hazard-mitigation
- geologic-hazards-science-center
- magnetic-storm
- real-time-monitoring
- magnetic-vector-time-series
- geomagnetism-program
- magnetic-field
- geomagnetic-observatory
- usgs
- earth-science
- usgs-5b228f72e4b092d9652a2228