| タイトル | Variation with interplanetary sector of the total magnetic field measured at the OGO 2, 4, and 6 satellites |
| 本文（外部サイト） | http://hdl.handle.net/2060/19740005453 |
| 著者（英） | Langel, R. A. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 1973-11-01 |
| 言語 | eng |
| 内容記述 | Variations in the scalar magnetic field (delta B) from the polar orbiting OGO 2, 4, and 6 spacecraft are examined as a function of altitude for times when the interplanetary magnetic field is toward the sun and for times when the interplanetary magnetic field away from the sun. This morphology is basically the same as that found when all data, irrespective of interplanetary magnetic sector, are averaged together. Differences in delta B occur, both between sectors and between seasons, which are similar in nature to variations in the surface delta Z found by Langel (1973c). The altitude variation of delta B at sunlit local times, together with delta Z at the earth's surface, demonstrates that the delta Z and delta B which varies with sector has an ionospheric source. Langel (1973b) showed that the positive delta B region in the dark portion of the hemisphere is due to at least two sources, the westward electrojet and an unidentified non-ionospheric source(s). Comparison of magnetic variations between season/sector at the surface and at the satellite, in the dark portion of the hemisphere, indicates that these variations are caused by variations in the latitudinally narrow electrojet currents and not by variations in the non-ionospheric source of delta B. |
| NASA分類 | SPACE SCIENCES |
| レポートNO | 74N13566
NASA-TM-X-70531
NSSDC-ID-65-081A-05-PM
X-645-73-356
NSSDC-ID-69-051A-21-PM
NSSDC-ID-67-073A-06-PM |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/196438 |
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