Nakamura, R; Baumjohann, W; Klecker, B; Bogdanova, Y; Balogh, A; Reme, H; Bosqued, JM; ... Runov, A; + view all Nakamura, R; Baumjohann, W; Klecker, B; Bogdanova, Y; Balogh, A; Reme, H; Bosqued, JM; Dandouras, I; Sauvaud, JA; Glassmeier, KH; Kistler, L; Mouikis, C; Zhang, TL; Eichelberger, H; Runov, A; - view fewer (2002) Motion of the dipolarization front during a flow burst event observed by Cluster. Geophysical Research Letters , 29 (20) , Article 1942. 10.1029/2002GL015763.

Preview

PDF 2002GL015763.pdf Available under License : See the attached licence file. Download (251kB)

Abstract

In this paper we study a flow burst event which took place during enhanced geomagnetic activity on July 22, 2001, when Cluster was located in the postmidnight magnetotail. The flow burst was associated with a clear dipolarization ahead of the high-speed part of the predominantly Earthward directed flow. Based on the analysis of the four spacecraft data, we found that a similar to2000 km thick dipolarization front moves Earthward and dawnward with a speed of similar to77 km/s. The plasma before this front is deflected, consistent with the plasma ahead of a localized plasma bubble centered at midnight side being pushed aside by the moving obstacle. The main body of the high-speed flow is directed mainly parallel to the dipolarization front. These observations indicate that the evolution of the dipolarization front across the tail is directly coupled with the fast flow.

Download activity - last month

Export as JSONCSVXML

Download activity - last 12 months

Export as XMLCSVJSON

Downloads by country - last 12 months

Export as CSVXMLJSON

Archive Staff Only

View Item