Eulerian decorrelation of fluctuations in the interplanetary magnetic field

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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 measu...

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Autores principales:	Matthaeus, W.H., Dasso, S., Weygand, J.M., Kivelson, M.G., Osman, K.T.
Formato:	JOUR
Materias:	Interplanetary medium Magnetic fields Solar wind Turbulence
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_20418205_v721_n1PART2_pL10_Matthaeus
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_20418205_v721_n1PART2_pL10_Matthaeus
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spelling	todo:paper_20418205_v721_n1PART2_pL10_Matthaeus2023-10-03T16:38:00Z Eulerian decorrelation of fluctuations in the interplanetary magnetic field Matthaeus, W.H. Dasso, S. Weygand, J.M. Kivelson, M.G. Osman, K.T. Interplanetary medium Magnetic fields Solar wind Turbulence 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_20418205_v721_n1PART2_pL10_Matthaeus
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Interplanetary medium Magnetic fields Solar wind Turbulence
spellingShingle	Interplanetary medium Magnetic fields Solar wind Turbulence Matthaeus, W.H. Dasso, S. Weygand, J.M. Kivelson, M.G. Osman, K.T. Eulerian decorrelation of fluctuations in the interplanetary magnetic field
topic_facet	Interplanetary medium Magnetic fields Solar wind Turbulence
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.
format	JOUR
author	Matthaeus, W.H. Dasso, S. Weygand, J.M. Kivelson, M.G. Osman, K.T.
author_facet	Matthaeus, W.H. Dasso, S. Weygand, J.M. Kivelson, M.G. Osman, K.T.
author_sort	Matthaeus, W.H.
title	Eulerian decorrelation of fluctuations in the interplanetary magnetic field
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
url	http://hdl.handle.net/20.500.12110/paper_20418205_v721_n1PART2_pL10_Matthaeus
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_version_	1807320803034791936

Eulerian decorrelation of fluctuations in the interplanetary magnetic field

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