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The influence of anisotropy on stress estimation by the indirect dissipation method

✍ Scribed by Jürgen Wucknitz

Publisher
Springer
Year
1979
Tongue
English
Weight
639 KB
Volume
17
Category
Article
ISSN
0006-8314

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✦ Synopsis

A comparison of observations by different authors reveals that systematic differences exist between momentum fluxes measured directly, and momentum fluxes determined indirectly by the 'dissipation method'. This discrepancy is attributed to systematic errors due to the indirect determination of energy dissipation from the presumed inertial subrange spectrum of the horizontal wind component. The discrepancy increases with increasing 'degree of anisotropy', indicated by the ratio (vertical wind spectrum) : (horizontal wind spectrum) deviating from f.

The results support a value of 0.48 for Kolmogoroff's constant.

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