中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 中国科学院地球与行星物理重点实验室
Latitudinal and MLT dependence of the seasonal variation of geomagnetic field around auroral zone

文献类型：期刊论文

作者Zhu, Jin1,2,3; Du, Aimin1,2; Ou, Jiaming1,2; Xu, Wenyao1,2
刊名ADVANCES IN SPACE RESEARCH
出版日期2017-08-01
卷号60期号:3页码:667-676
关键词Geomagnetic field Annual variation Semiannual variation Auroral zone
ISSN号0273-1177
DOI10.1016/j.asr.2017.04.022
文献子类Article
英文摘要Seasonal variation of geomagnetic field around auroral zone is analyzed in terms of geomagnetic latitude, magnetic local time (MLT) and geomagnetic condition in this study. The study uses horizontal component (H) of geomagnetic field obtained from 6 observatories located in geomagnetic latitude of 57.8 degrees N-73.8 degrees N along 115 degrees E longitudinal line. The results indicate that seasonal variations of geomagnetic field around auroral zone are different combinations of annual and semiannual variations at different latitudinal ranges. Both annual and semiannual variations show distinct MLT dependency: (1) At dayside auroral latitudes (around 72 degrees N geomagnetic latitude), geomagnetic field shows distinct annual variation under both quiet and disturbed conditions. Furthermore, the annual component is mainly contributed by data of dusk sector. (2) At nightside auroral latitudes (around 65 degrees N), geomagnetic field shows semiannual dominated seasonal variation. Under quiet conditions the annual component is comparable to the semiannual component, while under disturbed conditions, the semiannual component is twice as much as the annual component. Under quiet conditions, the semiannual component is mainly contributed by 1300-1400 MLT, while the annual component has two peaks: one is around 1100-1300 MLT and the other is around 2000-2200 MLT. Under disturbed conditions, the semiannual component is mainly contributed by data around midnight, while the annual component is mainly contributed by dusk sector. (3) At subauroral latitudes (around 60 degrees N), annual variation is comparable to semiannual variation under both quiet and disturbed conditions. Both annual and semiannual components show similar MLT dependencies as that of nightside auroral latitudes. (C) 2017 COSPAR. Published by Elsevier Ltd. All rights reserved.
WOS关键词SOLAR-CYCLE VARIATIONS ; SEMIANNUAL VARIATION ; ELECTROJET INDEXES ; QUIET ; CURRENTS ; SUBSTORMS ; BEHAVIOR
WOS研究方向Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:000404793400013
出版者ELSEVIER SCI LTD
资助机构National Basic Research Program of China(2014CB845903) ; National Key Research and Development Program of China(2016YFB0501300 ; National Natural Science Foundation of China(41674168 ; 2016YFB0501304) ; 41590851) ; National Basic Research Program of China(2014CB845903) ; National Key Research and Development Program of China(2016YFB0501300 ; National Natural Science Foundation of China(41674168 ; 2016YFB0501304) ; 41590851) ; National Basic Research Program of China(2014CB845903) ; National Key Research and Development Program of China(2016YFB0501300 ; National Natural Science Foundation of China(41674168 ; 2016YFB0501304) ; 41590851) ; National Basic Research Program of China(2014CB845903) ; National Key Research and Development Program of China(2016YFB0501300 ; National Natural Science Foundation of China(41674168 ; 2016YFB0501304) ; 41590851)
源URL[http://ir.iggcas.ac.cn/handle/132A11/46062]  
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Du, Aimin
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Beijing Natl Observ Space Environm, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Sch Earth Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Zhu, Jin,Du, Aimin,Ou, Jiaming,et al. Latitudinal and MLT dependence of the seasonal variation of geomagnetic field around auroral zone[J]. ADVANCES IN SPACE RESEARCH,2017,60(3):667-676.
APA Zhu, Jin,Du, Aimin,Ou, Jiaming,&Xu, Wenyao.(2017).Latitudinal and MLT dependence of the seasonal variation of geomagnetic field around auroral zone.ADVANCES IN SPACE RESEARCH,60(3),667-676.
MLA Zhu, Jin,et al."Latitudinal and MLT dependence of the seasonal variation of geomagnetic field around auroral zone".ADVANCES IN SPACE RESEARCH 60.3(2017):667-676.

入库方式： OAI收割

来源：地质与地球物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。