NSSC OpenIR  > 空间科学部
Alternative TitleOn the asymmetry of the storm-time current system in the ionosphere between southern and northern hemispheres
沈长寿; 资民筠; 王劲松; 徐寄遥; 刘顺林; 北京8701信箱
Source Publication地球物理学报
Keyword扰动电流系 电离层发电机 热层风场 电导率 磁暴 磁层耦合 极盖区边界驱动电场 场向电流
Other AbstractThe parameters of the upper atmosphere and ionosphere,such as the neutral wind and conductance,deduced from widely accepted empirical models are used to calculate the distribution of the electric field and current between geomagnetic latitudes ±72° and 00:00~24:00 MLT on June-and December-solstices during strong storms in terms of the ionospheric current continuity equation.The deviation of geomagnetic and rotation axes of the earth is considered in the calculation.Except the dynamo effect induced by the neutral wind,the driving electric field across the polar cap and the region 2 field aligned current,caused by the magnetospheric coupling, are also taken into account. The results show that on the June-solstice the penetration of magnetospheric disturbances from the auroral zone to mid-and low-latitude areas is similar between the southern and northern hemispheres,but is a bit little stronger in the northern one. On the December solstice,however,obvious asymmetry appeared. The penetration of disturbed current is much stronger in the routhern hemisphere than that in the northern one,meanwhile the penetration of the electric field is stronger in the northern one.Independent of the southern or northern hemisphere,in the moderate high latitude areas the existence of a eastward electric field in the midnight-dawn region is an expected mechanism,which can be used to explain phenomena found many times in our previous irks,due to its E XB upper-ward drift effect phenomena.
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
沈长寿,资民筠,王劲松,等. 关于暴时电离层电流分布的南北半球不对称性[J]. 地球物理学报,2006,49(6):1573-1581.
APA 沈长寿,资民筠,王劲松,徐寄遥,刘顺林,&北京8701信箱.(2006).关于暴时电离层电流分布的南北半球不对称性.地球物理学报,49(6),1573-1581.
MLA 沈长寿,et al."关于暴时电离层电流分布的南北半球不对称性".地球物理学报 49.6(2006):1573-1581.
Files in This Item: Download All
File Name/Size DocType Version Access License
20064961573.pdf(587KB) 开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[沈长寿]'s Articles
[资民筠]'s Articles
[王劲松]'s Articles
Baidu academic
Similar articles in Baidu academic
[沈长寿]'s Articles
[资民筠]'s Articles
[王劲松]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[沈长寿]'s Articles
[资民筠]'s Articles
[王劲松]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 20064961573.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.

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