Eulerian decorrelation of fluctuations in the interplanetary magnetic field

Autores
Matthaeus, W.H.; Dasso, S.; Weygand, J.M.; Kivelson, M.G.; Osman, K.T.
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A method is devised for estimating the two-time correlation function and the associated Eulerian decorrelation timescale in turbulence.With the assumptions of a single decorrelation time and a frozen-in flow approximation for the single-point analysis, the method compares two-point correlation measurements with single-point correlation measurements at the corresponding spatial lag. This method is applied to interplanetarymagnetic fieldmeasurements from the Advanced Composition Explorer and Wind spacecraft. An average Eulerian decorrelation time of 2.9 hr is found. This measures the total rate of distortion of turbulent fluid elements-including sweeping, nonlinear distortion, and wave propagation. © 2010. The American Astronomical Society. All rights reserved.
Fil:Dasso, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fuente
Astrophys. J. Lett. 2010;721(1 PART 2):L10-L13
Materia
Interplanetary medium
Magnetic fields
Solar wind
Turbulence
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/2.5/ar
Repositorio
Biblioteca Digital (UBA-FCEN)
Institución
Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
OAI Identificador
paperaa:paper_20418205_v721_n1PART2_pL10_Matthaeus
Acceder
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oai_identifier_str paperaa:paper_20418205_v721_n1PART2_pL10_Matthaeus
network_acronym_str BDUBAFCEN
repository_id_str 1896
network_name_str Biblioteca Digital (UBA-FCEN)
spelling Eulerian decorrelation of fluctuations in the interplanetary magnetic fieldMatthaeus, W.H.Dasso, S.Weygand, J.M.Kivelson, M.G.Osman, K.T.Interplanetary mediumMagnetic fieldsSolar windTurbulenceA method is devised for estimating the two-time correlation function and the associated Eulerian decorrelation timescale in turbulence.With the assumptions of a single decorrelation time and a frozen-in flow approximation for the single-point analysis, the method compares two-point correlation measurements with single-point correlation measurements at the corresponding spatial lag. This method is applied to interplanetarymagnetic fieldmeasurements from the Advanced Composition Explorer and Wind spacecraft. An average Eulerian decorrelation time of 2.9 hr is found. This measures the total rate of distortion of turbulent fluid elements-including sweeping, nonlinear distortion, and wave propagation. © 2010. The American Astronomical Society. All rights reserved.Fil:Dasso, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.2010info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12110/paper_20418205_v721_n1PART2_pL10_MatthaeusAstrophys. J. Lett. 2010;721(1 PART 2):L10-L13reponame:Biblioteca Digital (UBA-FCEN)instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesinstacron:UBA-FCENenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/2.5/ar2025-10-23T11:18:22Zpaperaa:paper_20418205_v721_n1PART2_pL10_MatthaeusInstitucionalhttps://digital.bl.fcen.uba.ar/Universidad públicaNo correspondehttps://digital.bl.fcen.uba.ar/cgi-bin/oaiserver.cgiana@bl.fcen.uba.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:18962025-10-23 11:18:23.718Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesfalse
dc.title.none.fl_str_mv Eulerian decorrelation of fluctuations in the interplanetary magnetic field
title Eulerian decorrelation of fluctuations in the interplanetary magnetic field
spellingShingle Eulerian decorrelation of fluctuations in the interplanetary magnetic field
Matthaeus, W.H.
Interplanetary medium
Magnetic fields
Solar wind
Turbulence
title_short Eulerian decorrelation of fluctuations in the interplanetary magnetic field
title_full Eulerian decorrelation of fluctuations in the interplanetary magnetic field
title_fullStr Eulerian decorrelation of fluctuations in the interplanetary magnetic field
title_full_unstemmed Eulerian decorrelation of fluctuations in the interplanetary magnetic field
title_sort Eulerian decorrelation of fluctuations in the interplanetary magnetic field
dc.creator.none.fl_str_mv Matthaeus, W.H.
Dasso, S.
Weygand, J.M.
Kivelson, M.G.
Osman, K.T.
author Matthaeus, W.H.
author_facet Matthaeus, W.H.
Dasso, S.
Weygand, J.M.
Kivelson, M.G.
Osman, K.T.
author_role author
author2 Dasso, S.
Weygand, J.M.
Kivelson, M.G.
Osman, K.T.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Interplanetary medium
Magnetic fields
Solar wind
Turbulence
topic Interplanetary medium
Magnetic fields
Solar wind
Turbulence
dc.description.none.fl_txt_mv A method is devised for estimating the two-time correlation function and the associated Eulerian decorrelation timescale in turbulence.With the assumptions of a single decorrelation time and a frozen-in flow approximation for the single-point analysis, the method compares two-point correlation measurements with single-point correlation measurements at the corresponding spatial lag. This method is applied to interplanetarymagnetic fieldmeasurements from the Advanced Composition Explorer and Wind spacecraft. An average Eulerian decorrelation time of 2.9 hr is found. This measures the total rate of distortion of turbulent fluid elements-including sweeping, nonlinear distortion, and wave propagation. © 2010. The American Astronomical Society. All rights reserved.
Fil:Dasso, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
description A method is devised for estimating the two-time correlation function and the associated Eulerian decorrelation timescale in turbulence.With the assumptions of a single decorrelation time and a frozen-in flow approximation for the single-point analysis, the method compares two-point correlation measurements with single-point correlation measurements at the corresponding spatial lag. This method is applied to interplanetarymagnetic fieldmeasurements from the Advanced Composition Explorer and Wind spacecraft. An average Eulerian decorrelation time of 2.9 hr is found. This measures the total rate of distortion of turbulent fluid elements-including sweeping, nonlinear distortion, and wave propagation. © 2010. The American Astronomical Society. All rights reserved.
publishDate 2010
dc.date.none.fl_str_mv 2010
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12110/paper_20418205_v721_n1PART2_pL10_Matthaeus
url http://hdl.handle.net/20.500.12110/paper_20418205_v721_n1PART2_pL10_Matthaeus
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/2.5/ar
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/2.5/ar
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Astrophys. J. Lett. 2010;721(1 PART 2):L10-L13
reponame:Biblioteca Digital (UBA-FCEN)
instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron:UBA-FCEN
reponame_str Biblioteca Digital (UBA-FCEN)
collection Biblioteca Digital (UBA-FCEN)
instname_str Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron_str UBA-FCEN
institution UBA-FCEN
repository.name.fl_str_mv Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
repository.mail.fl_str_mv ana@bl.fcen.uba.ar
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score 12.982451

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