A Refinement of the Millionshchikov Quasi-Normality Hypothesis for Convective Boundary Layer Turbulence

hdl:10013/epic.22012

A Refinement of the Millionshchikov Quasi-Normality Hypothesis for Convective Boundary Layer Turbulence

Gryanik, Vladimir M, Hartmann, Jörg, Raasch, Siegfried and Schröter, Michael ;

Contact

vgryanik [ at ] awi-bremerhaven.de

Abstract

<jats:title>Abstract</jats:title> <jats:p>The Millionshchikov hypothesis of quasi-normal distribution of fourth-order moments fails for convective conditions where the probability density functions of temperature and vertical velocity fluctuations are skewed. This is shown for aircraft and large-eddy simulation (LES) data, and new closures for fourth-order moments that take the skewness into account are suggested. These new closures are in very good agreement with the data.</jats:p>

Item Type

Article

Authors

Gryanik, Vladimir M, Hartmann, Jörg, Raasch, Siegfried and Schröter, Michael ;

Divisions

AWI Organizations > Climate Sciences > Polar Meteorology

Programs

Helmholtz Research Programs > MARCOPOLI (2004-2008) > POL-MARCOPOLI
Helmholtz Research Programs > MARCOPOLI (2004-2008) > POL1-Processes and interactions in the polar climate system

Publication Status

Published

Eprint ID

11560

DOI https://www.doi.org/10.1175/jas3457.1

Cite as

Gryanik, V. M. , Hartmann, J. , Raasch, S. and Schröter, M. (2005): A Refinement of the Millionshchikov Quasi-Normality Hypothesis for Convective Boundary Layer Turbulence , Journal of the Atmospheric Sciences, 62 (7), pp. 2632-2638 . doi: https://www.doi.org/10.1175/jas3457.1

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