Plasmaspheric trough evolution under different conditions of subauroral ion drift

	Plasmaspheric trough evolution under different conditions of subauroral ion drift
其他题名	论文其他题名
	He F.; Zhang X. X.; Chen B.; Fok M.
	2012
发表期刊	Science China-Technological Sciences
ISSN	1674-7321
卷号	55 期号:5 页码:1287-1294
摘要	The statistical characteristics of the subauroral ion drift (SAID) in the ionosphere and the plasmaspheric trough evolution under different conditions of SAID were investigated in this paper, based on 566 SAID events observed by Akebono, Astrid-2, DE-2, and Freja satellites. The relationships between the latitudinal location of SAID and the Kp, AL, and Dst indices for these events were also discussed. It was found that the SAID events happened mainly at invariant latitude (ILAT) of 60.4 degrees and magnetic local time (MLT) of 21.6 MLT and that 92.4% of the events happened when the Kp index was below 5.0, indicating a medium geomagnetic activity. The latitudinal half-width of SAID varied from 0.5 degrees to 3.0 degrees with a typical half-width of 1.0 degrees. The SAID would happen at low latitudes if the geomagnetic activity was high. The effects of SAID on equatorial outer plasmasphere trough evolutions were studied with the dynamic global core plasma model (DGCPM) driven by the statistical results of SAID signatures. It was noted that locations, shapes and density of troughs vary with ILAT, MLT, latitudinal width, cross polar cap potential and lifetime of SAID events. The evolution of a trough is determined by the extent of SAID electric field penetrating into plasmasphere and not all SAID events can result in trough formations.
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/24619
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	He F.,Zhang X. X.,Chen B.,et al. Plasmaspheric trough evolution under different conditions of subauroral ion drift[J]. Science China-Technological Sciences,2012,55(5):1287-1294.
APA	He F.,Zhang X. X.,Chen B.,&Fok M..(2012).Plasmaspheric trough evolution under different conditions of subauroral ion drift.Science China-Technological Sciences,55(5),1287-1294.
MLA	He F.,et al."Plasmaspheric trough evolution under different conditions of subauroral ion drift".Science China-Technological Sciences 55.5(2012):1287-1294.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
He-2012-Plasmaspheri（659KB）			开放获取	--	浏览下载