GEOTAIL Spacecraft Observations of Near-Tail Dipolarization and Plasma Flow during the Substorm Expansion
| Autor: | D.-Y. Lee, K. W. Min, E. S. Lee |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2000 |
| Předmět: | |
| Zdroj: | Journal of Astronomy and Space Sciences, Vol 17, Iss 2, Pp 141-146 (2000) |
| Druh dokumentu: | article |
| ISSN: | 2093-5587 2093-1409 |
| Popis: | Some observational features on the July 5, 1995 substorm event are presented using the data from the Geotail satellite which was located at near-Earth plasma sheet, XGSE ¡ -9.6 R_E, and quite close to the onset sector. Near-tail magnetic field reveals the typical dipolarizations starting at ¡ 1104 UT until ¡ 1113 UT. During the interval, two dipolarizations occur: First dipolarization is not strong and accompanies only weak ( 450 km/s was observed, but delayed by ¡ 1 min with respect to the second dipolarization initiation. These features are in conflict with the flow-braking scenario for the substorm. Rather they fit better in the near-tail current disruption scenario. |
| Databáze: | Directory of Open Access Journals |
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