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Multiple-satellite studies of magnetospheric substorms: plasma sheet recovery and the poleward leap of auroral-zone activity
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | West Jr., H. I. Pytte, T. McPherron, R. L. Hones Jr., E. W. Kivelson, M. G. |
| Copyright Year | 1977 |
| Description | Particle observations from pairs of satellites (Ogo 5, Vela 4A and 5B, Imp 3) during the recovery of plasma sheet thickness late in substorms were examined. Six of the nine events occurred within about 5 min in locations near the estimated position of the neutral sheet, but over wide ranges of east-west and radial separations. The time of occurrence and spatial extent of the recovery were related to the onset (defined by ground Pi 2 pulsations) and approximate location (estimated from ground mid-latitude magnetic signatures) of substorm expansions. It was found that the plasma sheet recovery occurred 10 - 30 min after the last in a series of Pi bursts, which were interpreted to indicate that the recovery was not due directly to a late, high latitude substorm expansion. The recovery was also observed to occur after the substorm current wedge had moved into the evening sector and to extend far to the east of the center of the last preceding substorm expansion. |
| File Size | 1529529 |
| Page Count | 53 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19790004462 |
| Archival Resource Key | ark:/13960/t7pp3wk3s |
| Language | English |
| Publisher Date | 1977-12-01 |
| Access Restriction | Open |
| Subject Keyword | Geophysics Earth Magnetosphere Plasma Physics Auroras Ogo Satellite Observation Magnetic Fields Imp Magnetic Storms Vela Satellites Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
