Multi-spacecraft observations of ULF waves during the recovery phase of   magnetic storm on October 30, 2003

doi:10.1007/s11431-008-0168-8

CORC > 北京大学 > 地球与空间科学学院

	Multi-spacecraft observations of ULF waves during the recovery phase of magnetic storm on October 30, 2003
	Wang YongFu ; Fu SuiYan ; Zong QiuGang ; Yang Biao ; Pu ZuYin ; Xie Lun ; Zhou XuZhi
刊名	中国科学e辑技术科学
	2008
关键词	magnetic storm ULF wave poloidal mode toroidal mode compressional mode cavity mode Field Line Resonance (FLR) FIELD LINE RESONANCES HYDROMAGNETIC-WAVES CLOUD EVENT SOLAR-WIND PULSATIONS MAGNETOSPHERE OSCILLATIONS ACCELERATION PROPAGATION IONOSPHERE
DOI	10.1007/s11431-008-0168-8
英文摘要	Based on observations obtained by Cluster C1, GOES 10, 12, and Polar, the global ULF wave properties are studied during the recovery phase of a very intense magnetic storm-Halloween storm (October 31, 2003, 21:00-23:00 UT). The results indicate that the ULF waves' properties observed by different satellites, such as amplitude, period, etc. show large variations. This can be interpreted as that Field Line Resonance (FLR) might take place in the region where Cluster C1 passed. The compressional wave of the cavity mode coupled with FLR's shear Alfven wave and fed energy to the latter, forming a large-amplitude toroidal mode. From the point of period, Cluster C1 observed the shortest period, GOES 10, 12 observed the middle, while Polar observed the longest. The wave period of toroidal mode observed by Cluster C1 kept almost unchanging when Cluster C1 passed L range from 11.7 to 5.3. Using the Squared Wavelet Coherence analysis method, we estimated that the FLR region in the dayside magnetosphere could expand to at least 4 local time widths. The toroidal mode observed by Polar was a standing wave, while the poloidal mode was a propagating wave, the observation results could be well explained by the waveguide mode theory. Since the solarwind speed V(x) was -800 km/s and the dynamic pressure varied little, we speculated that the source of the ULF wave was the Kelvin-Helmholtz instability at the magnetopause triggered by high speed solarwind.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000259789900022&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Engineering, Multidisciplinary; Materials Science, Multidisciplinary; SCI(E); EI; 10; ARTICLE; 10,SI; 1772-1785; 51
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/148976]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Wang YongFu,Fu SuiYan,Zong QiuGang,et al. Multi-spacecraft observations of ULF waves during the recovery phase of magnetic storm on October 30, 2003[J]. 中国科学e辑技术科学,2008.
APA	Wang YongFu.,Fu SuiYan.,Zong QiuGang.,Yang Biao.,Pu ZuYin.,...&Zhou XuZhi.(2008).Multi-spacecraft observations of ULF waves during the recovery phase of magnetic storm on October 30, 2003.中国科学e辑技术科学.
MLA	Wang YongFu,et al."Multi-spacecraft observations of ULF waves during the recovery phase of magnetic storm on October 30, 2003".中国科学e辑技术科学 (2008).