On Helicity of Ekman Boundary Layers

The sensitivity of the results of calculating atmospheric flow helicity in the atmospheric boundary layer with respect to the factor of nonstationarity and details of the eddy exchange description is theoretically investigated. The study shows that estimates often used in the framework of the classi...

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Bibliographic Details
Published in:Russian meteorology and hydrology 2023-07, Vol.48 (7), p.576-580
Main Author: Ingel, L. Kh
Format: Article
Language:English
Subjects:
Atmospheric boundary layer
Atmospheric Sciences
Boundary layers
Earth and Environmental Science
Earth Sciences
Ekman layers
Estimates
Helicity
Meteorology
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Summary:The sensitivity of the results of calculating atmospheric flow helicity in the atmospheric boundary layer with respect to the factor of nonstationarity and details of the eddy exchange description is theoretically investigated. The study shows that estimates often used in the framework of the classical Ekman model can lead to significantly overestimated values of helicity. Appropriate estimates and variants of refined calculations are given.
ISSN:1068-3739
1934-8096
DOI:10.3103/S1068373923070038