中文核心期刊
CNKI期刊全文数据库
中国科学引文数据库(CSCD)源期刊
中国科技论文统计源期刊
万方数据知识服务平台
英国《科学文摘》(SA)
美国化学文摘(CA)
俄罗斯《文摘杂志》(AJ)
德国《天文学与天体物理学文摘》(AAA)
英国《中国天文学和天体物理学》(SCI收录)全文摘译期刊之一
《中国学术期刊文摘》
《中国物理文摘》
《中国天文学文摘》

• 日球层物理和太阳系探测 •     Next Articles

Magnetopause Location and Shape Under Extreme Solar Wind Conditions

DING Kai1,2, HUANG Zhaohui1, WANG Chi1, LIU Huilian1,2   

  1. 1. State Key Laboratory of Space Weather, Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190;
    2. Graduate University of Chinese Academy of Sciences, Beijing 100049
  • Received:2011-01-21 Revised:2011-11-22 Online:2012-03-15 Published:2012-03-15

Abstract: Based on the 3D global MHD numerical simulation data under extreme solar wind conditions, a dynamic 3D asymmetric magnetopause model under extreme solar wind conditions is developed. This magnetopause model parameters are fitted by the Levenberg-Marquart method and this magnetopause model has the ability to describe the saturation effects of the solar wind dynamic pressure Bd on the flaring of the magnetopause, the saturation effects of the interplanetary magnetic field (IMF) Bz on the subsolar standoff distance, the magnetopause indentation in the cusp region, the magnetopause asymmetry and the movement of magnetopause indentation center. On the basis of this model under extreme solar wind conditions, the subsolar point decreases with increasing Bd and increasing Bd causes the decrease of the magnetopause size but almost keeps the magnetopause shapes self-similar; with increasing southward (IMF) Bz, the subsolar point decreases slightly, the flaring of the magnetopause decreases and magnetopause indentation center moves towards lowlatitude. Through analysis of the solar storm on August 1, 2010, it is found that this magnetopause model can describe the global magnetopause location and shape under extreme solar wind conditions.

CLC Number: