Ensemble Space-Time Correlation of Plasma Turbulence in the Solar Wind

Single point measurement turbulence cannot distinguish variations in space and time. We employ an ensemble of one- and two-point measurements in the solar wind to estimate the space-time correlation function in the comoving plasma frame. The method is illustrated using near Earth spacecraft observat...

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Autor principal:	Dasso, Sergio Ricardo
Publicado:	2016
Materias:	Orbits Plasma turbulence Solar wind Space flight Correlation lengths Correlation time Single-point measurement Solar Orbiters Space and time Space-time correlation Space-time correlation function Spacetime structures Rain
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v116_n24_p_Matthaeus http://hdl.handle.net/20.500.12110/paper_00319007_v116_n24_p_Matthaeus
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00319007_v116_n24_p_Matthaeus
record_format	dspace
spelling	paper:paper_00319007_v116_n24_p_Matthaeus2023-06-08T14:58:18Z Ensemble Space-Time Correlation of Plasma Turbulence in the Solar Wind Dasso, Sergio Ricardo Orbits Plasma turbulence Solar wind Space flight Correlation lengths Correlation time Single-point measurement Solar Orbiters Space and time Space-time correlation Space-time correlation function Spacetime structures Rain Single point measurement turbulence cannot distinguish variations in space and time. We employ an ensemble of one- and two-point measurements in the solar wind to estimate the space-time correlation function in the comoving plasma frame. The method is illustrated using near Earth spacecraft observations, employing ACE, Geotail, IMP-8, and Wind data sets. New results include an evaluation of both correlation time and correlation length from a single method, and a new assessment of the accuracy of the familiar frozen-in flow approximation. This novel view of the space-time structure of turbulence may prove essential in exploratory space missions such as Solar Probe Plus and Solar Orbiter for which the frozen-in flow hypothesis may not be a useful approximation. © 2016 American Physical Society. Fil:Dasso, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2016 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v116_n24_p_Matthaeus http://hdl.handle.net/20.500.12110/paper_00319007_v116_n24_p_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	Orbits Plasma turbulence Solar wind Space flight Correlation lengths Correlation time Single-point measurement Solar Orbiters Space and time Space-time correlation Space-time correlation function Spacetime structures Rain
spellingShingle	Orbits Plasma turbulence Solar wind Space flight Correlation lengths Correlation time Single-point measurement Solar Orbiters Space and time Space-time correlation Space-time correlation function Spacetime structures Rain Dasso, Sergio Ricardo Ensemble Space-Time Correlation of Plasma Turbulence in the Solar Wind
topic_facet	Orbits Plasma turbulence Solar wind Space flight Correlation lengths Correlation time Single-point measurement Solar Orbiters Space and time Space-time correlation Space-time correlation function Spacetime structures Rain
description	Single point measurement turbulence cannot distinguish variations in space and time. We employ an ensemble of one- and two-point measurements in the solar wind to estimate the space-time correlation function in the comoving plasma frame. The method is illustrated using near Earth spacecraft observations, employing ACE, Geotail, IMP-8, and Wind data sets. New results include an evaluation of both correlation time and correlation length from a single method, and a new assessment of the accuracy of the familiar frozen-in flow approximation. This novel view of the space-time structure of turbulence may prove essential in exploratory space missions such as Solar Probe Plus and Solar Orbiter for which the frozen-in flow hypothesis may not be a useful approximation. © 2016 American Physical Society.
author	Dasso, Sergio Ricardo
author_facet	Dasso, Sergio Ricardo
author_sort	Dasso, Sergio Ricardo
title	Ensemble Space-Time Correlation of Plasma Turbulence in the Solar Wind
title_short	Ensemble Space-Time Correlation of Plasma Turbulence in the Solar Wind
title_full	Ensemble Space-Time Correlation of Plasma Turbulence in the Solar Wind
title_fullStr	Ensemble Space-Time Correlation of Plasma Turbulence in the Solar Wind
title_full_unstemmed	Ensemble Space-Time Correlation of Plasma Turbulence in the Solar Wind
title_sort	ensemble space-time correlation of plasma turbulence in the solar wind
publishDate	2016
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v116_n24_p_Matthaeus http://hdl.handle.net/20.500.12110/paper_00319007_v116_n24_p_Matthaeus
work_keys_str_mv	AT dassosergioricardo ensemblespacetimecorrelationofplasmaturbulenceinthesolarwind
_version_	1768543408698163200

Ensemble Space-Time Correlation of Plasma Turbulence in the Solar Wind

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