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磁层顶高纬边界层的瞬时重联过程
Alternative TitleTRANSIENT MAGNETIC RECONNECTION PROCESSES AT THE HIGH LATITUDE BOUNDARY LAYER
刘振兴; 祝中伟; 濮祖荫; 北京8701信箱
Department空间天气学国家重点实验室
Source Publication地球物理学报
1995
Volume38Issue:2Pages:141-149
ISSN0001-5733
Language中文
Keyword瞬时磁场重联 背阳面磁层顶 等离子体幔
Abstract用二维可压缩的MHD模型模拟研究了北半球背阳面磁层顶区的瞬时重联过程.结果表明,当行星际磁场(IMF)具有南向Bz分量和背太阳向Bx分量时,IMF与地磁场联接,磁层顶向外扩张,在等离子体幔区可形成流体旋涡,磁力线被扭曲,但不易形成磁涡旋;当IMF具有北向Bz分量时,不论Bx分量是背向太阳或指向太阳,都可发生瞬时重联,而且当IMFBx分量与地磁场Bx分量反向时,在等离子体幔区更易形成磁涡旋.这两种情况,在磁层顶边界层区都能产生多层的电流片.
Other AbstractBy using a two-dimentional compressible MHD model,the transient magnetic reconnection processes at the nightside magnetopause boundary layer are simulated based on the theary of vortex-induced reconnection.It is found that when the IMFhas a southward Bz,the IMF connects with the geomagnetic field at the nightsidenorthern magnetopause only When the IMF Bx component is opposite to the sun worddirectioon.In this case the magnetopuse moves toward the magnetotheath region;no magnetic vortices are formed in the magnetopause boundary layer. When theIMF has a northward BJ and a sunward Bz,the transient reconnection m ay occur at the nightside magnetopause region;and fluid vortices and m agnetic vortices are also formed
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/1179
Collection空间科学部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
刘振兴,祝中伟,濮祖荫,等. 磁层顶高纬边界层的瞬时重联过程[J]. 地球物理学报,1995,38(2):141-149.
APA 刘振兴,祝中伟,濮祖荫,&北京8701信箱.(1995).磁层顶高纬边界层的瞬时重联过程.地球物理学报,38(2),141-149.
MLA 刘振兴,et al."磁层顶高纬边界层的瞬时重联过程".地球物理学报 38.2(1995):141-149.
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