NSSC OpenIR  > 空间科学部
Alternative TitleRelationship between Interplanetary Magnetic Field Clock Angle and Magnetosphere Open Magnetic Flux
夏之阳; 王赤; 彭忠; 陆全明
Source Publication空间科学学报
Keyword开放磁通 行星际磁场时钟角 Mhd模拟
Abstract地球磁层开放磁通F_(pc)是研究磁层动力学过程的重要参数之一,其与日侧和夜侧磁尾的磁场重联具有密切关系.日侧重联率控制稳定状态下磁层开放磁通的大小,主要受各种太阳风条件的影响.其中,行星际磁场(IMF)的时钟角是影响日侧重联率的一个重要因素.通过全球MHD模拟,研究了行星际磁场时钟角theta_c与地球磁层开放磁通F_(pc)之间的关系.结果表明,开放磁通Fpc随着行星际磁场时钟角theta_c逐渐接近180° (纯南向)而逐渐增加,两者之间的关系近似为F_(pc) sin~(3/2)(theta_c/2).由于表征行星际磁场与地球磁场剪切程度的theta_c影响日侧重联率,从而控制F_(pc),该关系反映了二者之间的物理联系.
Other AbstractThe open magnetic flux (F_(pc)) is a key parameter to study magnetospheric dynamical process, which is closely related to magnetic reconnections in the dayside magnetopause and magnetotail. The dayside reconnection rate controls the amount of the open magnetic flux, which is affected by various solar wind parameters, among which the clock angle theta_c of the interplanetary magnetic field (IMF) is an important factor that influence the dayside reconnection rate. Using global MHD simulations, we analyze the relationship between theta_C and F_(pc). The results show that the open flux F_(pc) increases as the clock angle theta_c approaches 180°(due southward), and the open flux Fpc is proportional to sin~(3/2)(theta_c/2). This reflects the physical connection between them, since O_c describes the magnitude of the shear between IMF and terrestrial magnetic field, and affects the dayside reconnection rate, thus controlling the open flux F_(pc).
Indexed ByCSCD
Funding Project中国科学院空间科学与应用研究中心
Citation statistics
Document Type期刊论文
Recommended Citation
GB/T 7714
夏之阳,王赤,彭忠,等. 行星际磁场时钟角与地球磁层开放磁通的关系[J]. 空间科学学报,2014,34(1):24-28.
APA 夏之阳,王赤,彭忠,&陆全明.(2014).行星际磁场时钟角与地球磁层开放磁通的关系.空间科学学报,34(1),24-28.
MLA 夏之阳,et al."行星际磁场时钟角与地球磁层开放磁通的关系".空间科学学报 34.1(2014):24-28.
Files in This Item:
File Name/Size DocType Version Access License
201434124.pdf(469KB) 开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[夏之阳]'s Articles
[王赤]'s Articles
[彭忠]'s Articles
Baidu academic
Similar articles in Baidu academic
[夏之阳]'s Articles
[王赤]'s Articles
[彭忠]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[夏之阳]'s Articles
[王赤]'s Articles
[彭忠]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.