Solar wind parameters and geomagnetic indices for four different interplanetary shock/ICME structures
Solar wind parameters and geomagnetic indices for four different interplanetary shock/ICME structures
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四种不同行星际激波/ICME结构的太阳风参数和地磁指数
DOI:
10.1029/2011ja017013
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发表时间:
2011-12
影响因子:
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通讯作者:
Y. Chao, Q.‐G. Zong
中科院分区:
文献类型:
--
作者:
Y. Chao, Q.‐G. Zong
[1] Interplanetary shocks associated with coronal mass ejections (CMEs) have very profound effects on geomagnetic storms. In order to investigate the role of the interplanetary shock properties and pre-conditions, we present a statistical study of 280 interplanetary shocks and their associated geomagnetic activities during 1998–2007. The results show that perpendicular shocks can cause more intense geomagnetic activities compared with parallel ones under the same IMF pre-condition. Through a southward IMF pre-condition, interplanetary shocks and driven ICMEs can intensify geomagnetic storms significantly. It is revealed that interplanetary shocks would intensify negative IMF Bz pre-condition by a factor of 3 to 6. This effect would enhance geomagnetic storms greatly. The result shows that there are 74% of intense (Dst ≤ −100 nT) and 69% of super (Dst ≤ −200 nT) geomagnetic storms related to a negative IMF Bz pre-condition.
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影响因子:
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作者:
Jichun Zhang;M. Liemohn;J. Kozyra;B. Lynch;T. Zurbuchen
通讯作者:
Jichun Zhang;M. Liemohn;J. Kozyra;B. Lynch;T. Zurbuchen
影响因子:
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作者:
通讯作者:
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影响因子:
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作者:
J. Gosling;D. McComas;J. Phillips;S. Bame
通讯作者:
J. Gosling;D. McComas;J. Phillips;S. Bame
影响因子:
5.2
作者:
Hui Li;Chi Wang;J. Richardson
通讯作者:
Hui Li;Chi Wang;J. Richardson
影响因子:
2.1
作者:
Q. Zong
通讯作者:
Q. Zong