| タイトル | Terrestrial ionospheric signatures of field-aligned currents |
| 著者（英） | Friis-Christensen, E. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 1990-01-01 |
| 言語 | eng |
| 内容記述 | The occurrence of traveling field-aligned current filaments and twin-vortex patterns is suggested to be related to sudden changes in solar wind dynamic pressure and/or the IMF. Greenland magnetometer observations of the cleft region magnetic perturbations associated with small-scale twin-vortex patterns show that these events occur on both sides of the magnetic local noon, contradicting Glassmeier at al.'s (1989) statistical analysis of 82 twin-vortex subauroral-latitude events obtained by the Scandinavian Magnetometer Array; the stations are closer to the ionospheric projection of the cleft earlier in magnetic local time, relative to the across-the-cleft-located Greenland stations. |
| NASA分類 | GEOPHYSICS |
| レポートNO | 92A31275 |
| 権利 | Copyright |
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