Eintrag weiter verarbeiten
Technique for measuring and correcting the Taylor microscale
Gespeichert in:
Zeitschriftentitel: | Journal of Geophysical Research: Space Physics |
---|---|
Personen und Körperschaften: | , , , , , |
In: | Journal of Geophysical Research: Space Physics, 119, 2014, 6, S. 4256-4265 |
Format: | E-Article |
Sprache: | Englisch |
veröffentlicht: |
American Geophysical Union (AGU)
|
Schlagwörter: |
author_facet |
Chuychai, P. Weygand, J. M. Matthaeus, W. H. Dasso, S. Smith, C. W. Kivelson, M. G. Chuychai, P. Weygand, J. M. Matthaeus, W. H. Dasso, S. Smith, C. W. Kivelson, M. G. |
---|---|
author |
Chuychai, P. Weygand, J. M. Matthaeus, W. H. Dasso, S. Smith, C. W. Kivelson, M. G. |
spellingShingle |
Chuychai, P. Weygand, J. M. Matthaeus, W. H. Dasso, S. Smith, C. W. Kivelson, M. G. Journal of Geophysical Research: Space Physics Technique for measuring and correcting the Taylor microscale Space and Planetary Science Geophysics |
author_sort |
chuychai, p. |
spelling |
Chuychai, P. Weygand, J. M. Matthaeus, W. H. Dasso, S. Smith, C. W. Kivelson, M. G. 2169-9380 2169-9402 American Geophysical Union (AGU) Space and Planetary Science Geophysics http://dx.doi.org/10.1002/2013ja019641 <jats:title>Abstract</jats:title><jats:p>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.</jats:p> Technique for measuring and correcting the Taylor microscale Journal of Geophysical Research: Space Physics |
doi_str_mv |
10.1002/2013ja019641 |
facet_avail |
Online Free |
finc_class_facet |
Geologie und Paläontologie Geographie Physik Technik |
format |
ElectronicArticle |
fullrecord |
blob:ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTAwMi8yMDEzamEwMTk2NDE |
id |
ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTAwMi8yMDEzamEwMTk2NDE |
institution |
DE-105 DE-14 DE-Ch1 DE-L229 DE-D275 DE-Bn3 DE-Brt1 DE-Zwi2 DE-D161 DE-Gla1 DE-Zi4 DE-15 DE-Rs1 DE-Pl11 |
imprint |
American Geophysical Union (AGU), 2014 |
imprint_str_mv |
American Geophysical Union (AGU), 2014 |
issn |
2169-9380 2169-9402 |
issn_str_mv |
2169-9380 2169-9402 |
language |
English |
mega_collection |
American Geophysical Union (AGU) (CrossRef) |
match_str |
chuychai2014techniqueformeasuringandcorrectingthetaylormicroscale |
publishDateSort |
2014 |
publisher |
American Geophysical Union (AGU) |
recordtype |
ai |
record_format |
ai |
series |
Journal of Geophysical Research: Space Physics |
source_id |
49 |
title |
Technique for measuring and correcting the Taylor microscale |
title_unstemmed |
Technique for measuring and correcting the Taylor microscale |
title_full |
Technique for measuring and correcting the Taylor microscale |
title_fullStr |
Technique for measuring and correcting the Taylor microscale |
title_full_unstemmed |
Technique for measuring and correcting the Taylor microscale |
title_short |
Technique for measuring and correcting the Taylor microscale |
title_sort |
technique for measuring and correcting the taylor microscale |
topic |
Space and Planetary Science Geophysics |
url |
http://dx.doi.org/10.1002/2013ja019641 |
publishDate |
2014 |
physical |
4256-4265 |
description |
<jats:title>Abstract</jats:title><jats:p>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.</jats:p> |
container_issue |
6 |
container_start_page |
4256 |
container_title |
Journal of Geophysical Research: Space Physics |
container_volume |
119 |
format_de105 |
Article, E-Article |
format_de14 |
Article, E-Article |
format_de15 |
Article, E-Article |
format_de520 |
Article, E-Article |
format_de540 |
Article, E-Article |
format_dech1 |
Article, E-Article |
format_ded117 |
Article, E-Article |
format_degla1 |
E-Article |
format_del152 |
Buch |
format_del189 |
Article, E-Article |
format_dezi4 |
Article |
format_dezwi2 |
Article, E-Article |
format_finc |
Article, E-Article |
format_nrw |
Article, E-Article |
_version_ |
1792344951552475142 |
geogr_code |
not assigned |
last_indexed |
2024-03-01T17:15:45.362Z |
geogr_code_person |
not assigned |
openURL |
url_ver=Z39.88-2004&ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fvufind.svn.sourceforge.net%3Agenerator&rft.title=Technique+for+measuring+and+correcting+the+Taylor+microscale&rft.date=2014-06-01&genre=article&issn=2169-9402&volume=119&issue=6&spage=4256&epage=4265&pages=4256-4265&jtitle=Journal+of+Geophysical+Research%3A+Space+Physics&atitle=Technique+for+measuring+and+correcting+the+Taylor+microscale&aulast=Kivelson&aufirst=M.+G.&rft_id=info%3Adoi%2F10.1002%2F2013ja019641&rft.language%5B0%5D=eng |
SOLR | |
_version_ | 1792344951552475142 |
author | Chuychai, P., Weygand, J. M., Matthaeus, W. H., Dasso, S., Smith, C. W., Kivelson, M. G. |
author_facet | Chuychai, P., Weygand, J. M., Matthaeus, W. H., Dasso, S., Smith, C. W., Kivelson, M. G., Chuychai, P., Weygand, J. M., Matthaeus, W. H., Dasso, S., Smith, C. W., Kivelson, M. G. |
author_sort | chuychai, p. |
container_issue | 6 |
container_start_page | 4256 |
container_title | Journal of Geophysical Research: Space Physics |
container_volume | 119 |
description | <jats:title>Abstract</jats:title><jats:p>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.</jats:p> |
doi_str_mv | 10.1002/2013ja019641 |
facet_avail | Online, Free |
finc_class_facet | Geologie und Paläontologie, Geographie, Physik, Technik |
format | ElectronicArticle |
format_de105 | Article, E-Article |
format_de14 | Article, E-Article |
format_de15 | Article, E-Article |
format_de520 | Article, E-Article |
format_de540 | Article, E-Article |
format_dech1 | Article, E-Article |
format_ded117 | Article, E-Article |
format_degla1 | E-Article |
format_del152 | Buch |
format_del189 | Article, E-Article |
format_dezi4 | Article |
format_dezwi2 | Article, E-Article |
format_finc | Article, E-Article |
format_nrw | Article, E-Article |
geogr_code | not assigned |
geogr_code_person | not assigned |
id | ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTAwMi8yMDEzamEwMTk2NDE |
imprint | American Geophysical Union (AGU), 2014 |
imprint_str_mv | American Geophysical Union (AGU), 2014 |
institution | DE-105, DE-14, DE-Ch1, DE-L229, DE-D275, DE-Bn3, DE-Brt1, DE-Zwi2, DE-D161, DE-Gla1, DE-Zi4, DE-15, DE-Rs1, DE-Pl11 |
issn | 2169-9380, 2169-9402 |
issn_str_mv | 2169-9380, 2169-9402 |
language | English |
last_indexed | 2024-03-01T17:15:45.362Z |
match_str | chuychai2014techniqueformeasuringandcorrectingthetaylormicroscale |
mega_collection | American Geophysical Union (AGU) (CrossRef) |
physical | 4256-4265 |
publishDate | 2014 |
publishDateSort | 2014 |
publisher | American Geophysical Union (AGU) |
record_format | ai |
recordtype | ai |
series | Journal of Geophysical Research: Space Physics |
source_id | 49 |
spelling | Chuychai, P. Weygand, J. M. Matthaeus, W. H. Dasso, S. Smith, C. W. Kivelson, M. G. 2169-9380 2169-9402 American Geophysical Union (AGU) Space and Planetary Science Geophysics http://dx.doi.org/10.1002/2013ja019641 <jats:title>Abstract</jats:title><jats:p>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.</jats:p> Technique for measuring and correcting the Taylor microscale Journal of Geophysical Research: Space Physics |
spellingShingle | Chuychai, P., Weygand, J. M., Matthaeus, W. H., Dasso, S., Smith, C. W., Kivelson, M. G., Journal of Geophysical Research: Space Physics, Technique for measuring and correcting the Taylor microscale, Space and Planetary Science, Geophysics |
title | Technique for measuring and correcting the Taylor microscale |
title_full | Technique for measuring and correcting the Taylor microscale |
title_fullStr | Technique for measuring and correcting the Taylor microscale |
title_full_unstemmed | Technique for measuring and correcting the Taylor microscale |
title_short | Technique for measuring and correcting the Taylor microscale |
title_sort | technique for measuring and correcting the taylor microscale |
title_unstemmed | Technique for measuring and correcting the Taylor microscale |
topic | Space and Planetary Science, Geophysics |
url | http://dx.doi.org/10.1002/2013ja019641 |