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The Storm Time Central Plasma Sheet : Volume 20, Issue 11 (30/11/-0001)

By Schödel, R.

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Book Id: WPLBN0004000999
Format Type: PDF Article :
File Size: Pages 5
Reproduction Date: 2015

Title: The Storm Time Central Plasma Sheet : Volume 20, Issue 11 (30/11/-0001)  
Author: Schödel, R.
Volume: Vol. 20, Issue 11
Language: English
Subject: Science, Annales, Geophysicae
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Nakamura, R., Baumjohann, W., Dierschke, K., Mukai, T., & Schödel, R. (-0001). The Storm Time Central Plasma Sheet : Volume 20, Issue 11 (30/11/-0001). Retrieved from

Description: Max-Planck-Institut für extraterrestrische Physik, Garching, Germany. The plasma sheet plays a key role during magnetic storms because it is the bottleneck through which large amounts of magnetic flux that have been eroded from the dayside magnetopause have to be returned to the dayside magnetosphere. Using about five years of Geotail data we studied the average properties of the near- and midtail central plasma sheet (CPS) in the 10–30 RE range during magnetic storms. The earthward flux transport rate is greatly enhanced during the storm main phase, but shows a significant earthward decrease. Hence, since the magnetic flux cannot be circulated at a sufficient rate, this leads to an average dipolarization of the central plasma sheet. An increase of the specific entropy of the CPS ion population by a factor of about two during the storm main phase provides evidence for nonadiabatic heating processes. The direction of flux transport during the main phase is consistent with the possible formation of a near-Earth neutral line beyond ~20 RE.

Key words. Magnetospheric physics (plasma convection; plasma sheet; storms and substorms)

The storm time central plasma sheet


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