The changing topology of the duskside magnetopause boundary layer in relation to IMF orientation

On 7 December 2000, Cluster made an extended outbound radial traversal of the duskside magnetopause boundary layer. The long duration of the crossing, during which Cluster spent several hours within 2RE of the nominal magnetopause, allows us to deconvolve the structure of this boundary layer in its...

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Detalles Bibliográficos
Autor principal:	Gratton, Fausto Tulio Livio
Publicado:	2006
Materias:	Boundary layers Kelvin-Helmholtz instability Multispacecraft measurements Reconnection Solar wind-magnetosphere coupling Magnetic field effects Solar system
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02731177_v37_n3_p497_Lund http://hdl.handle.net/20.500.12110/paper_02731177_v37_n3_p497_Lund
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_02731177_v37_n3_p497_Lund
record_format	dspace
spelling	paper:paper_02731177_v37_n3_p497_Lund2023-06-08T15:25:34Z The changing topology of the duskside magnetopause boundary layer in relation to IMF orientation Gratton, Fausto Tulio Livio Boundary layers Kelvin-Helmholtz instability Multispacecraft measurements Reconnection Solar wind-magnetosphere coupling Magnetic field effects Solar system Kelvin-Helmholtz instability Multispacecraft measurements Reconnection Solar wind-magnetosphere coupling Boundary layers On 7 December 2000, Cluster made an extended outbound radial traversal of the duskside magnetopause boundary layer. The long duration of the crossing, during which Cluster spent several hours within 2RE of the nominal magnetopause, allows us to deconvolve the structure of this boundary layer in its dependence on interplanetary parameters. We present evidence that as the interplanetary magnetic field (IMF) changed in discontinuous jumps from southward to northward, the magnetic topology of the boundary layer evolved from open to closed. Reconnection signatures, including enhanced flows observed locally at Cluster and ion energy dispersion signatures observed by FAST near Cluster's magnetic footpoint, appeared while the IMF was southward. When the IMF turned nearly due northward, Cluster observed 75-s (Pc 4) oscillations which we attribute to the Kelvin-Helmholtz instability. © 2004 COSPAR. Fil:Gratton, F.T. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2006 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02731177_v37_n3_p497_Lund http://hdl.handle.net/20.500.12110/paper_02731177_v37_n3_p497_Lund
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Boundary layers Kelvin-Helmholtz instability Multispacecraft measurements Reconnection Solar wind-magnetosphere coupling Magnetic field effects Solar system Kelvin-Helmholtz instability Multispacecraft measurements Reconnection Solar wind-magnetosphere coupling Boundary layers
spellingShingle	Boundary layers Kelvin-Helmholtz instability Multispacecraft measurements Reconnection Solar wind-magnetosphere coupling Magnetic field effects Solar system Kelvin-Helmholtz instability Multispacecraft measurements Reconnection Solar wind-magnetosphere coupling Boundary layers Gratton, Fausto Tulio Livio The changing topology of the duskside magnetopause boundary layer in relation to IMF orientation
topic_facet	Boundary layers Kelvin-Helmholtz instability Multispacecraft measurements Reconnection Solar wind-magnetosphere coupling Magnetic field effects Solar system Kelvin-Helmholtz instability Multispacecraft measurements Reconnection Solar wind-magnetosphere coupling Boundary layers
description	On 7 December 2000, Cluster made an extended outbound radial traversal of the duskside magnetopause boundary layer. The long duration of the crossing, during which Cluster spent several hours within 2RE of the nominal magnetopause, allows us to deconvolve the structure of this boundary layer in its dependence on interplanetary parameters. We present evidence that as the interplanetary magnetic field (IMF) changed in discontinuous jumps from southward to northward, the magnetic topology of the boundary layer evolved from open to closed. Reconnection signatures, including enhanced flows observed locally at Cluster and ion energy dispersion signatures observed by FAST near Cluster's magnetic footpoint, appeared while the IMF was southward. When the IMF turned nearly due northward, Cluster observed 75-s (Pc 4) oscillations which we attribute to the Kelvin-Helmholtz instability. © 2004 COSPAR.
author	Gratton, Fausto Tulio Livio
author_facet	Gratton, Fausto Tulio Livio
author_sort	Gratton, Fausto Tulio Livio
title	The changing topology of the duskside magnetopause boundary layer in relation to IMF orientation
title_short	The changing topology of the duskside magnetopause boundary layer in relation to IMF orientation
title_full	The changing topology of the duskside magnetopause boundary layer in relation to IMF orientation
title_fullStr	The changing topology of the duskside magnetopause boundary layer in relation to IMF orientation
title_full_unstemmed	The changing topology of the duskside magnetopause boundary layer in relation to IMF orientation
title_sort	changing topology of the duskside magnetopause boundary layer in relation to imf orientation
publishDate	2006
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02731177_v37_n3_p497_Lund http://hdl.handle.net/20.500.12110/paper_02731177_v37_n3_p497_Lund
work_keys_str_mv	AT grattonfaustotuliolivio thechangingtopologyofthedusksidemagnetopauseboundarylayerinrelationtoimforientation AT grattonfaustotuliolivio changingtopologyofthedusksidemagnetopauseboundarylayerinrelationtoimforientation
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The changing topology of the duskside magnetopause boundary layer in relation to IMF orientation

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