亚暴膨胀相近磁尾位形不稳定性模型:II.中磁尾等离子体流与近磁尾亚暴活动的关系
洪明华 ; 濮祖荫 ; 王敬芳 ; 王宪民 ; 刘振兴
刊名地球物理学报
1997
卷号40期号:2页码:143-163
关键词近磁尾位形不稳定性 等离子体流 亚暴膨胀相
ISSN号0001-5733
其他题名A SUBSTORM EXPANSION MODEL BASED ON CONFIGURATION INSTABILITY OF THE NEAR-EARTH MAGNETOTAIL: THE RELATION BETWEEN PLASMA FLOW IN THE MIDTAIL AND SUBSTORM ACTIVITY IN THE NEAR-EARTH MAGNETOTAIL
通讯作者北京8701信箱
中文摘要在单流体MHD近似下,研究了有背景等离子体流存在时的近磁尾位形不稳定性.分析表明,等离子体地向流使两支漂移气球模DBM1和DBM2的不稳定增长更快.与卫星观测资料对比显示,诸多的观测观象与本模型的预言一致.这个结果对中磁尾磁场重联及高速等离子体流与亚暴膨胀相在近地触发之间的关系给出了新的解释.
英文摘要One-fluid MHD approao is used to investigate configuration instability in me presence of plasma flow prior to onset of the substorm expansion phase in the near-Earth magnetotail. The results show that two drift ballooning modes DBMI and DBM2 become more unstable and grow more rapidly in presence of an earthward plasma flow Comparison of the theory presented here with GEOS2 observations indicate that a number of observations are consistent with the model discussed in this paper This may give a new explanation to the the midtail and the relation between the magnetic rennection and onset of the substor}n expansion phase in the resulting plasma flow in near一Earth magnetotail.
学科主题空间物理
资助信息国家教委博士点基金,国家自然科学基金
语种中文
内容类型期刊论文
源URL[http://ir.cssar.ac.cn/handle/122/1262]  
专题国家空间科学中心_空间科学部
推荐引用方式
GB/T 7714
洪明华,濮祖荫,王敬芳,等. 亚暴膨胀相近磁尾位形不稳定性模型:II.中磁尾等离子体流与近磁尾亚暴活动的关系[J]. 地球物理学报,1997,40(2):143-163.
APA 洪明华,濮祖荫,王敬芳,王宪民,&刘振兴.(1997).亚暴膨胀相近磁尾位形不稳定性模型:II.中磁尾等离子体流与近磁尾亚暴活动的关系.地球物理学报,40(2),143-163.
MLA 洪明华,et al."亚暴膨胀相近磁尾位形不稳定性模型:II.中磁尾等离子体流与近磁尾亚暴活动的关系".地球物理学报 40.2(1997):143-163.
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