Regional differences of the ionospheric response to the July 2012 geomagnetic storm

doi:10.1002/2016JA023844

CORC > 地质与地球物理研究所 > 中国科学院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

	Regional differences of the ionospheric response to the July 2012 geomagnetic storm
	Kuai, Jiawei 1,2,3; Liu, Libo 1,2,3; Lei, Jiuhou 4; Liu, Jing 5; Zhao, Biqiang 1,2,3; Chen, Yiding 1,2,3; Le, Huijun 1,2,3; Wang, Yungang 6; Hu, Lianhuan 1,2,3
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
	2017-04-01
卷号	122 期号:4 页码:4654-4668
ISSN号	2169-9380
DOI	10.1002/2016JA023844
文献子类	Article
英文摘要	The July 2012 geomagnetic storm is an extreme space weather event in solar cycle 24, which is characterized by a southward interplanetary geomagnetic field lasting for about 30 h below -10 nT. In this work, multiple instrumental observations, including electron density from ionosondes, total electron content (TEC) from Global Positioning System, Jason-2, and Gravity Recovery and Climate Experiment, and the topside ion concentration observed by the Defense Meteorological Satellite Program spacecraft are used to comprehensively present the regional differences of the ionospheric response to this event. In the Asian-Australian sector, an intensive negative storm is detected near longitude similar to 120 degrees E on 16 July, and in the topside ionosphere the negative phase is mainly existed in the equatorial region. The topside and bottomside TEC contribute equally to the depletion in TEC, and the disturbed electric fields make a reasonable contribution. On 15 July, the positive storm effects are stronger in the Eastside than in the Westside. The topside TEC make a major contribution to the enhancement in TEC for the positive phases, showing the important role of the equatorward neutral winds. For the American sector, the equatorial ionization anomaly intensification is stronger in the Westside than in the Eastside and shows the strongest feature in the longitude similar to 110 degrees W. The combined effects of the disturbed electric fields, composition disturbances, and neutral winds cause the complex storm time features. Both the topside ion concentrations and TEC reveal the remarkable hemispheric asymmetry, which is mainly resulted from the asymmetry in neutral winds and composition disturbances.
WOS关键词	TOTAL ELECTRON-CONTENT ; OCTOBER 2003 SUPERSTORMS ; LOW-LATITUDE IONOSPHERE ; MAGNETIC STORM ; EQUATORIAL IONOSPHERE ; BOTTOMSIDE IONOSPHERE ; DISTURBANCE DYNAMO ; THERMOSPHERE ; DENSITY ; TOPSIDE
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000401340800056
资助机构	National Natural Science Foundation of China(41231065 ; National Natural Science Foundation of China(41231065 ; National High Technology Research and Development Program of China (863 program)(2014AA123501) ; National High Technology Research and Development Program of China (863 program)(2014AA123501) ; Young Talent Program of Chinese Academy of Science ; Young Talent Program of Chinese Academy of Science ; 41304128 ; 41304128 ; 41621063 ; 41621063 ; 41574151) ; 41574151) ; National Natural Science Foundation of China(41231065 ; National Natural Science Foundation of China(41231065 ; National High Technology Research and Development Program of China (863 program)(2014AA123501) ; National High Technology Research and Development Program of China (863 program)(2014AA123501) ; Young Talent Program of Chinese Academy of Science ; Young Talent Program of Chinese Academy of Science ; 41304128 ; 41304128 ; 41621063 ; 41621063 ; 41574151) ; 41574151) ; National Natural Science Foundation of China(41231065 ; National Natural Science Foundation of China(41231065 ; National High Technology Research and Development Program of China (863 program)(2014AA123501) ; National High Technology Research and Development Program of China (863 program)(2014AA123501) ; Young Talent Program of Chinese Academy of Science ; Young Talent Program of Chinese Academy of Science ; 41304128 ; 41304128 ; 41621063 ; 41621063 ; 41574151) ; 41574151) ; National Natural Science Foundation of China(41231065 ; National Natural Science Foundation of China(41231065 ; National High Technology Research and Development Program of China (863 program)(2014AA123501) ; National High Technology Research and Development Program of China (863 program)(2014AA123501) ; Young Talent Program of Chinese Academy of Science ; Young Talent Program of Chinese Academy of Science ; 41304128 ; 41304128 ; 41621063 ; 41621063 ; 41574151) ; 41574151)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/52927]
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	Liu, Libo
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China 2.Chinese Acad Sci, Beijing Natl Observ Space Environm, Inst Geol & Geophys, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Coll Earth Sci, Beijing, Peoples R China 4.Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Geospace Environm, Hefei, Peoples R China 5.Natl Ctr Atmospher Res, High Altitude Observ, Pob 3000, Boulder, CO 80307 USA 6.China Meteorol Adm, Key Lab Space Weather, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Kuai, Jiawei,Liu, Libo,Lei, Jiuhou,et al. Regional differences of the ionospheric response to the July 2012 geomagnetic storm[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2017,122(4):4654-4668.
APA	Kuai, Jiawei.,Liu, Libo.,Lei, Jiuhou.,Liu, Jing.,Zhao, Biqiang.,...&Hu, Lianhuan.(2017).Regional differences of the ionospheric response to the July 2012 geomagnetic storm.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,122(4),4654-4668.
MLA	Kuai, Jiawei,et al."Regional differences of the ionospheric response to the July 2012 geomagnetic storm".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 122.4(2017):4654-4668.