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Tilt of the ring current during the main phases of intense geomagnetic storms

文献类型：期刊论文

作者Liu BaoJia1,2,3; Zhang XiaoXin3; He Fei4,5,6
刊名SCIENCE CHINA-TECHNOLOGICAL SCIENCES
出版日期2019-05-01
卷号62期号:5页码:820-828
关键词tilt of ring current geomagnetic storm solar wind interplanetary magnetic field
ISSN号1674-7321
DOI10.1007/s11431-018-9344-5
英文摘要Based on the data from the SuperMAG collaboration in 2000-2014, the magnetic latitude (MLAT) location of the ring current (RC) denoted by the MLAT of the maximum horizontal magnetic disturbance during the main phase of 67 intense geomagnetic storms (Dst -100 nT) are derived. The results show that the maximum horizontal magnetic disturbance does not always occur in the magnetic equator, indicating that the RC might be tilted in the latitudinal direction during these storms. Specifically, the tilt of the RC near the day-night line is affected by the direction of solar wind. When the solar wind flows southward against the magnetic equatorial plane, the RC is more likely to show a dayside-lifted tilt. When the solar wind flows northward, the pattern is opposite. Tilts of the RC near the dawn-dusk line are also found in most of these storms. The location of the RC is mainly lifted in the dusk side and declined in the dawn side for positive IMF B-Y, while the tilt is reversed for negative IMF B-Y. A possible interpretation might be the IMF B-Y-related twisting of the geomagnetic field. Besides, the monthly averaged MLAT of the fitted RC also varies with seasons. It is shifted to the southern hemisphere in the northern summer and to the northern hemisphere in the northern winter, which might indicate that the RC is not centered on a single plane. Such a seasonal variation might be related to the angle between the solar wind and the magnetic equatorial plane.
WOS关键词MAGNETIC-FIELD ; INNER MAGNETOSPHERE ; DISTURBANCE ; MODEL
资助项目National Natural Science Foundation of China[41674155] ; National Natural Science Foundation of China[41774152] ; National Natural Science Foundation of China[41404053] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2017258]
WOS研究方向Engineering ; Materials Science
语种英语
WOS记录号WOS:000467172800014
出版者SCIENCE PRESS
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/91480]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者Zhang XiaoXin
作者单位1.Nanjing Univ Informat Sci & Technol, Sch Math & Stat, Inst Space Weather, Nanjing 210044, Jiangsu, Peoples R China
2.Chinese Acad Meteorol Sci, China Meteorol Adm, State Key Lab Severe Weather, Beijing 100081, Peoples R China
3.China Meteorol Adm, Natl Ctr Space Weather, Key Lab Space Weather, Beijing 100081, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
5.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
6.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Liu BaoJia,Zhang XiaoXin,He Fei. Tilt of the ring current during the main phases of intense geomagnetic storms[J]. SCIENCE CHINA-TECHNOLOGICAL SCIENCES,2019,62(5):820-828.
APA Liu BaoJia,Zhang XiaoXin,&He Fei.(2019).Tilt of the ring current during the main phases of intense geomagnetic storms.SCIENCE CHINA-TECHNOLOGICAL SCIENCES,62(5),820-828.
MLA Liu BaoJia,et al."Tilt of the ring current during the main phases of intense geomagnetic storms".SCIENCE CHINA-TECHNOLOGICAL SCIENCES 62.5(2019):820-828.

入库方式： OAI收割

来源：地质与地球物理研究所

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