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The Magnetic Local Time Distribution of Storm Geomagnetic Field Disturbance Under Different Conditions of solar Wind and interplanetary Magnetic Field
Liu, Bao-Jia1,2,3; Zhang, Xiao-Xin3,4; He, Fei5,6,7; Zong, Qiu-Gang8
2019-04-01
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
ISSN2169-9380
Volume124Issue:4Pages:2656-2667
AbstractThe magnetic local time (MLT) distributions of the horizontal geomagnetic disturbance (Delta H) are investigated with the SuperMAG data set during 330 magnetic storms from 2000 to 2015. Then the MLT distributions of Delta H are verified and interpreted with the SuperMAG-based partial ring current indices (SMR indices) and the Burton equation. It is shown that the Delta H is positive at most MLTs and slightly stronger on the dayside during the initial phase. Such distribution might be mainly attributed to the global positive impact of the magnetopause currents, while the ring current (RC) only produces weak negative disturbances, which are slightly stronger on the duskside. In the main phase, the Delta H decreases prominently with the peak on the duskside. The RC particles injection plays a major role, especially for large solar wind electric field (E-SW) The region with Delta H larger than -20 nT is concentrated on the dawnside for small E-SW, which might be attributed to earthward bursty bulk flows. Besides, larger solar wind dynamic pressure might cause stronger disturbances under the same magnitude of E-SW. In the recovery phase, the Delta H is weaker and more uniform distributed than in the main phase for negative E-SW. For positive E-SW, similar dawn-dusk asymmetry occurs as that in the main phase, but the peak of strongest disturbance tends to weaken and move toward the dayside. Based on the dawn-dusk asymmetric decay rate derived from the Burton equation, it is speculated that the contribution of partial RC might be no less than the FACs.
DOI10.1029/2018JA026287
Funding OrganizationNational Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Specialized Research Fund for State Key Laboratory of Space Weather, Chinese Academy of Sciences ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Specialized Research Fund for State Key Laboratory of Space Weather, Chinese Academy of Sciences ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Specialized Research Fund for State Key Laboratory of Space Weather, Chinese Academy of Sciences ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Specialized Research Fund for State Key Laboratory of Space Weather, Chinese Academy of Sciences
WOS KeywordSTEADY-STATE RESPONSE ; LOW-LATITUDE STATIONS ; RING CURRENT ; DYNAMIC PRESSURE ; INNER MAGNETOSPHERE ; SUDDEN IMPULSES ; INJECTION ; CURRENTS ; DECAY ; IMF
Language英语
Funding ProjectNational Natural Science Foundation of China[41774152] ; National Natural Science Foundation of China[41674155] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2017258] ; Specialized Research Fund for State Key Laboratory of Space Weather, Chinese Academy of Sciences
Funding OrganizationNational Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Specialized Research Fund for State Key Laboratory of Space Weather, Chinese Academy of Sciences ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Specialized Research Fund for State Key Laboratory of Space Weather, Chinese Academy of Sciences ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Specialized Research Fund for State Key Laboratory of Space Weather, Chinese Academy of Sciences ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Specialized Research Fund for State Key Laboratory of Space Weather, Chinese Academy of Sciences
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000477707800021
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/92970
Collection地球与行星物理院重点实验室
Corresponding AuthorZhang, Xiao-Xin
Affiliation1.Nanjing Univ Informat Sci & Technol, Sch Math & Stat, Inst Space Weather, Nanjing, Jiangsu, Peoples R China
2.China Meteorol Adm, Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing, Peoples R China
3.China Meteorol Adm, Natl Ctr Space Weather, Key Lab Space Weather, Beijing, Peoples R China
4.Chinese Acad Sci, State Key Lab Space Weather, Beijing, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
6.Chinese Acad Sci, Inst Earth Sci, Beijing, Peoples R China
7.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
8.Peking Univ, Inst Space Phys & Appl Technol, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Liu, Bao-Jia,Zhang, Xiao-Xin,He, Fei,et al. The Magnetic Local Time Distribution of Storm Geomagnetic Field Disturbance Under Different Conditions of solar Wind and interplanetary Magnetic Field[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2019,124(4):2656-2667.
APA Liu, Bao-Jia,Zhang, Xiao-Xin,He, Fei,&Zong, Qiu-Gang.(2019).The Magnetic Local Time Distribution of Storm Geomagnetic Field Disturbance Under Different Conditions of solar Wind and interplanetary Magnetic Field.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,124(4),2656-2667.
MLA Liu, Bao-Jia,et al."The Magnetic Local Time Distribution of Storm Geomagnetic Field Disturbance Under Different Conditions of solar Wind and interplanetary Magnetic Field".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 124.4(2019):2656-2667.
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