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dc.contributor.author
Chuychai, P.
dc.contributor.author
Weygand, J. M.
dc.contributor.author
Matthaeus, W. H.
dc.contributor.author
Dasso, Sergio Ricardo
dc.contributor.author
Smith, C. W.
dc.contributor.author
Kivelson, M. G.
dc.date.available
2017-05-15T18:47:34Z
dc.date.issued
2014-06
dc.identifier.citation
Chuychai, P.; Weygand, J. M.; Matthaeus, W. H.; Dasso, Sergio Ricardo; Smith, C. W.; et al.; Technique for measuring and correcting the Taylor microscale; American Geophysical Union; Journal Of Geophysical Research; 119; 6; 6-2014; 4256-4265
dc.identifier.issn
0148-0227
dc.identifier.uri
http://hdl.handle.net/11336/16500
dc.description.abstract
We discuss and develop methods to estimate and refine measurements of the Taylor microscale from discrete data sets. To study how well a method works, we construct a time series of discrete data with a known power spectrum and Taylor scale, but with various truncations of the resolution that eliminate higher frequencies in a controlled fashion. We compute the second-order structure function and correlation function, assuming that the unresolved dissipation range spectrum has various values of spectral index. A series of Taylor scale estimates are obtained from parabolic fits to subsets of the correlation function data, and these are extrapolated to the limit of zero separation. The error in this procedure, for finite time resolution sampling, depends on the spectral index in the dissipation range. When the spectral form is known, we can compute a correction factor that improves the estimate of the Taylor microscale value determined from the extrapolation method and band-limited data. Application of this technique to spacecraft observations of solar wind fluctuations is illustrated.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Geophysical Union
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Turbulence
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Magnetohydrodynamics
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Taylor Microscale
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Física de los Fluidos y Plasma
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Technique for measuring and correcting the Taylor microscale
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-05-02T20:13:34Z
dc.journal.volume
119
dc.journal.number
6
dc.journal.pagination
4256-4265
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Chuychai, P.. Mae Fah Luang University; Estados Unidos. Ministry of Education; Tailandia
dc.description.fil
Fil: Weygand, J. M.. University of California; Estados Unidos
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Fil: Matthaeus, W. H.. University of Delaware; Estados Unidos
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Fil: Dasso, Sergio Ricardo. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomia y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomia y Física del Espacio; Argentina
dc.description.fil
Fil: Smith, C. W.. University of New Hampshire; Estados Unidos
dc.description.fil
Fil: Kivelson, M. G.. University of California; Estados Unidos
dc.journal.title
Journal Of Geophysical Research
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1002/2013JA019641
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/2013JA019641/abstract
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