Artículo
Chuychai, P.; Weygand, J.M.; Matthaeus, W.H.; Dasso, S.; Smith, C.W.; Kivelson, M.G. "Technique for measuring and correcting the Taylor microscale" (2014) Journal of Geophysical Research: Space Physics. 119(6):4256-4265
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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. ©2014. American Geophysical Union. All Rights Reserved.
Registro:
| Documento: | Artículo |
| Título: | Technique for measuring and correcting the Taylor microscale |
| Autor: | Chuychai, P.; Weygand, J.M.; Matthaeus, W.H.; Dasso, S.; Smith, C.W.; Kivelson, M.G. |
| Filiación: | School of Science, Mae Fah Luang University, Chiang Rai, Thailand Thailand Center of Excellence in Physics, CHE, Ministry of Education, Bangkok, Thailand Institute for Geophysics and Planetary Physics, University of California, Los Angeles CA, United States Bartol Research Institute, Department of Physics and Astronomy, University of Delaware, Newark DE, United States Instituto de Astronomia y Fisica Del Espacio (CONICET-UBA), Departamento de Fisica (FCEN-UBA), Buenos Aires, Argentina Space Science Center, University of New Hampshire, Durham NH, United States |
| Palabras clave: | correlation functions; magnetic field; solar wind |
| Año: | 2014 |
| Volumen: | 119 |
| Número: | 6 |
| Página de inicio: | 4256 |
| Página de fin: | 4265 |
| DOI: | http://dx.doi.org/10.1002/2013JA019641 |
| Título revista: | Journal of Geophysical Research: Space Physics |
| Título revista abreviado: | J. Geophys. Res. A. Space Phys. |
| ISSN: | 21699402 |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_21699402_v119_n6_p4256_Chuychai |
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Citas:
---------- APA ----------
Chuychai, P., Weygand, J.M., Matthaeus, W.H., Dasso, S., Smith, C.W. & Kivelson, M.G. (2014) . Technique for measuring and correcting the Taylor microscale. Journal of Geophysical Research: Space Physics, 119(6), 4256-4265.http://dx.doi.org/10.1002/2013JA019641
---------- CHICAGO ----------
Chuychai, P., Weygand, J.M., Matthaeus, W.H., Dasso, S., Smith, C.W., Kivelson, M.G. "Technique for measuring and correcting the Taylor microscale" . Journal of Geophysical Research: Space Physics 119, no. 6 (2014) : 4256-4265.http://dx.doi.org/10.1002/2013JA019641
---------- MLA ----------
Chuychai, P., Weygand, J.M., Matthaeus, W.H., Dasso, S., Smith, C.W., Kivelson, M.G. "Technique for measuring and correcting the Taylor microscale" . Journal of Geophysical Research: Space Physics, vol. 119, no. 6, 2014, pp. 4256-4265.http://dx.doi.org/10.1002/2013JA019641
---------- VANCOUVER ----------
Chuychai, P., Weygand, J.M., Matthaeus, W.H., Dasso, S., Smith, C.W., Kivelson, M.G. Technique for measuring and correcting the Taylor microscale. J. Geophys. Res. A. Space Phys. 2014;119(6):4256-4265.http://dx.doi.org/10.1002/2013JA019641
