The relations between density of FACs in the plasma sheet boundary layers and Kp index
文献类型：期刊论文
| 作者 | Cheng ZhengWei; Shi JianKui; Zhang TieLong; Dunlop, Malcolm; Liu ZhenXing |
| 刊名 | SCIENCE CHINA-TECHNOLOGICAL SCIENCES
 |
| 出版日期 | 2011 |
| 卷号 | 54期号:11页码:2987-2992 |
| 关键词 | field-aligned currents plasma sheet boundary layer Kp index AE index |
| ISSN号 | 1674-7321 |
| 通讯作者 | Cheng, ZW (reprint author), Chinese Acad Sci, CSSAR, State Key Lab Space Weather, Beijing 100190, Peoples R China. |
| 中文摘要 | We have studied 172 field-aligned currents (FACs) cases observed by the ClusterII satellites when they crossed the plasma sheet boundary layer (PSBL) in the magnetotail from July to October 2001. We mainly analyzed the relationship between the characteristic of FACs at the PSBL in magnetotail and the Kp index. The main results indicated the followings: 1) In the different geomagnetic activity levels, the relative occurrence of FACs in PSBL increased monotonically with geomagnetic activity. 2) The density of FACs in PSBL increased monotonically with Kp index. In the storm main phase, the density of FACs increased dramatically, the maximum FACs approximately equaled 19.05 nA m(-2) while Kp equaled 5. 3) The variation of FACs density in PSBL was consistent with the variation of the Kp index. However, when AE < 800 nT, FACs density in PSBL increased with increasing AE, and when AE > 800 nT, it decreased with increasing AE. Therefore, our results suggested that the FACs density in PSBL had a closer correlation with Kp index. |
| 英文摘要 | We have studied 172 field-aligned currents (FACs) cases observed by the ClusterII satellites when they crossed the plasma sheet boundary layer (PSBL) in the magnetotail from July to October 2001. We mainly analyzed the relationship between the characteristic of FACs at the PSBL in magnetotail and the Kp index. The main results indicated the followings: 1) In the different geomagnetic activity levels, the relative occurrence of FACs in PSBL increased monotonically with geomagnetic activity. 2) The density of FACs in PSBL increased monotonically with Kp index. In the storm main phase, the density of FACs increased dramatically, the maximum FACs approximately equaled 19.05 nA m(-2) while Kp equaled 5. 3) The variation of FACs density in PSBL was consistent with the variation of the Kp index. However, when AE < 800 nT, FACs density in PSBL increased with increasing AE, and when AE > 800 nT, it decreased with increasing AE. Therefore, our results suggested that the FACs density in PSBL had a closer correlation with Kp index. |
| 学科主题 | 空间物理 |
| 收录类别 | SCI ; EI |
| 资助信息 | National Natural Science Foundation of China [40804031, 41074114, 40921063]; Specialized Research Fund for State Key Laboratories |
| 语种 | 英语 |
| 公开日期 | 2014-12-15 |
| 源URL | [http://ir.nssc.ac.cn/handle/122/3311]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 推荐引用方式 GB/T 7714 | Cheng ZhengWei,Shi JianKui,Zhang TieLong,et al. The relations between density of FACs in the plasma sheet boundary layers and Kp index[J]. SCIENCE CHINA-TECHNOLOGICAL SCIENCES,2011,54(11):2987-2992. |
| APA | Cheng ZhengWei,Shi JianKui,Zhang TieLong,Dunlop, Malcolm,&Liu ZhenXing.(2011).The relations between density of FACs in the plasma sheet boundary layers and Kp index.SCIENCE CHINA-TECHNOLOGICAL SCIENCES,54(11),2987-2992. |
| MLA | Cheng ZhengWei,et al."The relations between density of FACs in the plasma sheet boundary layers and Kp index".SCIENCE CHINA-TECHNOLOGICAL SCIENCES 54.11(2011):2987-2992. |
入库方式： OAI收割
来源：国家空间科学中心
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