On the use of shear‐dependent turbulent length‐scales

We investigate the behaviour of the recently proposed shear‐dependent turbulent length‐scale in the neutrally stratified surface layer. It is found that close to ground, this shear‐dependent length‐scale is proportional to height, and thus, equivalent to the law of the wall. We speculate that the la...

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Veröffentlicht in:	Quarterly journal of the Royal Meteorological Society 2008-01, Vol.134 (631), p.539-540
Hauptverfasser:	Mauritsen, Thorsten, Enger, Leif
Format:	Artikel
Sprache:	eng
Schlagworte:	Atmosfärs- och hydrosfärsvetenskap Atmosphere and hydrosphere sciences Earth sciences Earth, ocean, space Exact sciences and technology External geophysics Geovetenskap Meteorologi Meteorology NATURAL SCIENCES NATURVETENSKAP Physics of the high neutral atmosphere Surface layer theory turbulence modelling turbulent exchange wind shear
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Zusammenfassung:	We investigate the behaviour of the recently proposed shear‐dependent turbulent length‐scale in the neutrally stratified surface layer. It is found that close to ground, this shear‐dependent length‐scale is proportional to height, and thus, equivalent to the law of the wall. We speculate that the law of the wall could be just a special case of applying the shear‐length to near‐surface flows. Copyright © 2008 Royal Meteorological Society
ISSN:	0035-9009 1477-870X 1477-870X
DOI:	10.1002/qj.218