کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1766906 | 1020169 | 2009 | 13 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Low-latitude geomagnetic response to the interplanetary conditions during very intense magnetic storms Low-latitude geomagnetic response to the interplanetary conditions during very intense magnetic storms](/preview/png/1766906.png)
The variations in the horizontal and declination components of the geomagnetic field in response to the interplanetary shocks driven by fast halo coronal mass ejections, fast solar wind streams from the coronal hole regions and the dynamic pressure pulses associated with these events are studied. Close association between the field-aligned current density (j∥) and the fluctuations in the declination component (ΔDABG) at Alibag is found for intense storm conditions. Increase in the dawn-dusk interplanetary electric field (Ey) and ΔDABG are generally in phase. However, when the magnetospheric electric field is directed from dusk to dawn direction, a prominent scatter occurs between the two. It is suggested that low-latitude ground magnetic data may serve as a proxy for the interplanetary conditions in the solar wind.
Journal: Advances in Space Research - Volume 43, Issue 10, 15 May 2009, Pages 1575–1587