Revealing spatiotemporal evolution of eddy turbulence in the magnetospheric boundary layer with multi-spacecraft measurements
Revealing spatiotemporal evolution of eddy turbulence in the magnetospheric boundary layer with multi-spacecraft measurements
批准号:
21740358
负责人:
HASEGAWA Hiroshi
金额:
$2.08万
依托单位国家:
日本
项目类别:
Grant-in-Aid for Young Scientists (B)
财政年份:
2009
资助国家:
日本
项目状态:
已结题
起止时间:
2009 至 2011
中文摘要
利用多个航天器的测量数据,研究了地球磁层边界层中涡旋湍流的性质,以期揭示无碰撞太阳风等离子体进入磁层的机制。建立了从Kelvin-Helmholtz涡发展到非线性阶段的现场测量识别方法,并对涡旋的激发和非线性演化及其后果获得了新的认识。这些涡旋可能不是太阳风进入本身的主要因素。
英文摘要
The nature of eddy turbulence induced in Earth's magnetospheric boundary layer is examined by using data from multi-spacecraft measurements, with a view to revealing the mechanism by which collisionless solar wind plasma is transported into the magnetosphere. The methods have been established for identification from in situ measurements of Kelvin-Helmholtz vortices developed to the nonlinear phase, and new insights have been obtained regarding the excitation and nonlinear evolution of the vortices and their consequences. The vortices may not be the major player in the solar wind entry itself.
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会议论文
DOI:
10.5194/angeo-29-1683-2011
发表时间:
2011-01-01
期刊:
ANNALES GEOPHYSICAE
影响因子:
1.9
作者:
[Dunlop, M. W., Zhang, Q. -H., Carr, C.]
通讯作者:
Carr, C.
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