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Field-Aligned Currents at the PSBL on 17 August 2001 Storm: Relationships with solar Wind Conditions
Cheng Zheng-Wei; Shi Jian-Kui; Zhang Tie-Long; Wang Sheng-Guo; Liu Zhen-Xing; Cheng, ZW (reprint author), CSSAR CAS, State Key Lab Space Weather, Beijing 100190, Peoples R China.
Department空间科学部
Source PublicationCHINESE PHYSICS LETTERS
2011
Volume28Issue:9Pages:99401
ISSN0256-307X
Language英语
AbstractUsing magnetic field and plasma data acquired with Cluster spacecrafts, we investigate the relationship between the field-aligned currents (FACs) at the plasma sheet boundary layer (PSBL) and solar wind dynamic pressure, as well as the interplanetary magnetic field (IMF) B(y) on 17 August 2001 storm. Our studies reveal that FAC density at the PSBL in the magnetotail in the storm time is controlled mainly by the solar wind dynamic pressure rather than IMF B(y) The FACs at the PSBL are associated with the low-altitude region-1 current and have the same polarity as region-1 current in the dawn sector. In the polar region, the footprints of the FACs at the PSBL expand equatorward. The data analysis also shows that a very strong FAC with a density over 40 nA.m(-2) appeared in this storm time when a substorm just occurred.; Using magnetic field and plasma data acquired with Cluster spacecrafts, we investigate the relationship between the field-aligned currents (FACs) at the plasma sheet boundary layer (PSBL) and solar wind dynamic pressure, as well as the interplanetary magnetic field (IMF) B(y) on 17 August 2001 storm. Our studies reveal that FAC density at the PSBL in the magnetotail in the storm time is controlled mainly by the solar wind dynamic pressure rather than IMF B(y) The FACs at the PSBL are associated with the low-altitude region-1 current and have the same polarity as region-1 current in the dawn sector. In the polar region, the footprints of the FACs at the PSBL expand equatorward. The data analysis also shows that a very strong FAC with a density over 40 nA.m(-2) appeared in this storm time when a substorm just occurred.
Indexed BySCI
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/3310
Collection空间科学部
Corresponding AuthorCheng, ZW (reprint author), CSSAR CAS, State Key Lab Space Weather, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Cheng Zheng-Wei,Shi Jian-Kui,Zhang Tie-Long,et al. Field-Aligned Currents at the PSBL on 17 August 2001 Storm: Relationships with solar Wind Conditions[J]. CHINESE PHYSICS LETTERS,2011,28(9):99401.
APA Cheng Zheng-Wei,Shi Jian-Kui,Zhang Tie-Long,Wang Sheng-Guo,Liu Zhen-Xing,&Cheng, ZW .(2011).Field-Aligned Currents at the PSBL on 17 August 2001 Storm: Relationships with solar Wind Conditions.CHINESE PHYSICS LETTERS,28(9),99401.
MLA Cheng Zheng-Wei,et al."Field-Aligned Currents at the PSBL on 17 August 2001 Storm: Relationships with solar Wind Conditions".CHINESE PHYSICS LETTERS 28.9(2011):99401.
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