Quantifying scaling in the velocity field of the anisotropic turbulent solar wind
Chapman, Sandra C. and Hnat, B.. (2007) Quantifying scaling in the velocity field of the anisotropic turbulent solar wind. Geophysical Research Letters, Vol.34 . ISSN 0094-8276
WRAP_Chapman_Quantifying_scaling_velocity.pdf - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Official URL: http://dx.doi.org/10.1029/2007GL030518
Solar wind turbulence is dominated by Alfvénic fluctuations with power spectral exponents that somewhat surprisingly evolve toward the Kolmogorov value of −5/3, that of hydrodynamic turbulence. We analyze in situ satellite observations at 1AU and show that the turbulence decomposes linearly into two coexistent components perpendicular and parallel to the local average magnetic field and determine their distinct intermittency independent scaling exponents. The first of these is consistent with recent predictions for anisotropic MHD turbulence and the second is closer to Kolmogorov-like scaling.
|Item Type:||Journal Article|
|Subjects:||Q Science > QB Astronomy|
|Divisions:||Faculty of Science > Physics|
|Library of Congress Subject Headings (LCSH):||Solar wind, Magnetohydrodynamic waves|
|Journal or Publication Title:||Geophysical Research Letters|
|Publisher:||American Geophysical Union|
|Access rights to Published version:||Open Access|
|Funder:||Science and Technology Facilities Council (Great Britain) (STFC)|
Boldyrev, S. (2006), Spectrum of magnetohydrodynamic turbulence, Phys.
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