Propagation characteristics of plasma sheet oscillations during a small storm

被引：17

作者：

Gabrielse, C. ^{[1
]}

Angelopoulos, V. ^{[1
]}

Runov, A. ^{[1
]}

Kepko, L. ^{[4
]}

Glassmeier, K. H. ^{[2
]}

Auster, H. U. ^{[2
]}

McFadden, J. ^{[3
]}

Carlson, C. W. ^{[3
]}

Larson, D. ^{[3
]}

机构：

[1] Univ Calif Los Angeles, ESS, IGPP, Los Angeles, CA 90095 USA

[2] Tech Univ Carolo Wilhelmina Braunschweig, Inst Geophys & Extraterrestr Phys, D-38106 Braunschweig, Germany

[3] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA

[4] Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2008年 / 35卷 / 17期

关键词：

D O I：

10.1029/2008GL033664

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

On 24 March 2007, the THEMIS spacecraft were in a string-of-pearls configuration through the dusk plasma sheet at the recovery phase of a small storm. Large undulations of the plasma sheet were observed that brought the five probes from one lobe to another. Each neutral sheet crossing was accompanied by bursty bulk flows and Pi2 oscillations. In this paper we focus on the low frequency (similar to 10 min) large scale plasma sheet undulations and determine their propagation characteristics, origin, and properties in the presence of storm-time substorms. As the first case of "flapping waves'' observed and analyzed during storm-time, it is interesting to find their characteristics coincide with those described by previous quiet-time observations. These characteristics include flankward propagation of the undulations with velocities generally between similar to 40-130 km/s.

引用

页数：5

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