Field-aligned currents and erosion of the dayside magnetosphere |
| |
| Authors: | YuP Maltsev WB Lyatsky |
| |
| Institution: | Polar Geophysical Institute, Apatity, U.S.S.R. |
| |
| Abstract: | The influence of the three-dimensional current system of the precursory phase of a substorm on the magnetic field in the dayside magnetosphere is considered. The current system includes the field-aligned currents flowing into the high-latitude ionosphere at dawn and flowing out at dusk. These currents decrease the magnetic field in the dayside magnetosphere and cause the transference of part of the dayside magnetic field lines into the magnetotail. As a result two kinds of deformation arise: the shrinkage of the dayside magnetopause and the equatorward displacement of the dayside polar cusps. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
