Flux pile-up and plasma depletion at the high latitude dayside magnetopause during southward interplanetary magnetic field: a cluster event study

Flux pile-up and plasma depletion at the high latitude dayside magnetopause during southward interplanetary magnetic field: a cluster event study

An event of strong flux pile-up and plasma depletion at the high latitude magnetopause tailward of the cusp has been analyzed based on observations by the suite of Cluster spacecraft. The multi-satellite analysis facilitates the separation of temporal and spatial features and provides a direct estim...

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Main Authors: T. Moretto, D. G. Sibeck, B. Lavraud, K. J. Trattner, H. Rème, A. Balogh
Format: Article
Language:English
Published: Copernicus Publications 2005-09-01
Series:Annales Geophysicae
Online Access:https://www.ann-geophys.net/23/2259/2005/angeo-23-2259-2005.pdf
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spelling doaj-5060c5c05c8c4bccb2d01b01076a68ac2020-11-25T01:23:53ZengCopernicus PublicationsAnnales Geophysicae0992-76891432-05762005-09-01232259226410.5194/angeo-23-2259-2005Flux pile-up and plasma depletion at the high latitude dayside magnetopause during southward interplanetary magnetic field: a cluster event studyT. Moretto0D. G. Sibeck1B. Lavraud2K. J. Trattner3H. Rème4A. Balogh5National Science Foundation, Arlington, Virginia, USALab. for Solar and Space Physics, NASA Goddard Space Flight Center, Greenbelt, Maryland, USASpace Science and Applications, Los Alamos National Laboratory, Los Alamos, New Mexico, USALockheed Martin ATC, Palo Alto, California, USACESR, Toulouse, FranceImperial College, London, UKAn event of strong flux pile-up and plasma depletion at the high latitude magnetopause tailward of the cusp has been analyzed based on observations by the suite of Cluster spacecraft. The multi-satellite analysis facilitates the separation of temporal and spatial features and provides a direct estimate for the strength of the plasma depletion layer for this event. A doubling of the magnetic field strength and a forty percent reduction of the density are found. Our analysis shows that roughly half of the total magnetic field increase occurs within 0.6 RE of the magnetopause and another quarter within a distance of 1.2 RE. In addition, the plasma depletion signatures exhibit temporal variations which we relate to magnetopause dynamics.<br><br> <b>Keywords.</b> Magnetospheric physics (Magnetopause, Cusp and boundary layers; Magnetosheath; Solar windmagnetosphere interactions)https://www.ann-geophys.net/23/2259/2005/angeo-23-2259-2005.pdf
collection DOAJ
language English
format Article
sources DOAJ
author T. Moretto
D. G. Sibeck
B. Lavraud
K. J. Trattner
H. Rème
A. Balogh
spellingShingle T. Moretto
D. G. Sibeck
B. Lavraud
K. J. Trattner
H. Rème
A. Balogh
Flux pile-up and plasma depletion at the high latitude dayside magnetopause during southward interplanetary magnetic field: a cluster event study
Annales Geophysicae
author_facet T. Moretto
D. G. Sibeck
B. Lavraud
K. J. Trattner
H. Rème
A. Balogh
author_sort T. Moretto
title Flux pile-up and plasma depletion at the high latitude dayside magnetopause during southward interplanetary magnetic field: a cluster event study
title_short Flux pile-up and plasma depletion at the high latitude dayside magnetopause during southward interplanetary magnetic field: a cluster event study
title_full Flux pile-up and plasma depletion at the high latitude dayside magnetopause during southward interplanetary magnetic field: a cluster event study
title_fullStr Flux pile-up and plasma depletion at the high latitude dayside magnetopause during southward interplanetary magnetic field: a cluster event study
title_full_unstemmed Flux pile-up and plasma depletion at the high latitude dayside magnetopause during southward interplanetary magnetic field: a cluster event study
title_sort flux pile-up and plasma depletion at the high latitude dayside magnetopause during southward interplanetary magnetic field: a cluster event study
publisher Copernicus Publications
series Annales Geophysicae
issn 0992-7689
1432-0576
publishDate 2005-09-01
description An event of strong flux pile-up and plasma depletion at the high latitude magnetopause tailward of the cusp has been analyzed based on observations by the suite of Cluster spacecraft. The multi-satellite analysis facilitates the separation of temporal and spatial features and provides a direct estimate for the strength of the plasma depletion layer for this event. A doubling of the magnetic field strength and a forty percent reduction of the density are found. Our analysis shows that roughly half of the total magnetic field increase occurs within 0.6 RE of the magnetopause and another quarter within a distance of 1.2 RE. In addition, the plasma depletion signatures exhibit temporal variations which we relate to magnetopause dynamics.<br><br> <b>Keywords.</b> Magnetospheric physics (Magnetopause, Cusp and boundary layers; Magnetosheath; Solar windmagnetosphere interactions)
url https://www.ann-geophys.net/23/2259/2005/angeo-23-2259-2005.pdf
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AT dgsibeck fluxpileupandplasmadepletionatthehighlatitudedaysidemagnetopauseduringsouthwardinterplanetarymagneticfieldaclustereventstudy
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