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contributor authorSteeneveld, G. J.
contributor authorvan de Wiel, B. J. H.
contributor authorHoltslag, A. A. M.
date accessioned2017-06-09T16:48:06Z
date available2017-06-09T16:48:06Z
date copyright2007/02/01
date issued2007
identifier issn1558-8424
identifier otherams-74383.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4216602
description abstractThe performance of diagnostic equations for the stable boundary layer height h is evaluated with four observational datasets that represent a broad range of latitudes, land use, and surface roughness. In addition, large-eddy simulation results are used. Special care is given to data-quality selection. The diagnostic equations evaluated are so-called multilimit equations as derived by Zilitinkevich and coworkers in a number of papers. It appears that these equations show a serious negative bias, especially for h < 100 m, and it was found that the parameters involved could not be determined uniquely with calibration. As an alternative, dimensional analysis is used here to derive a formulation for h that is more robust. The formulation depends on the surface friction velocity u*, surface buoyancy flux Bs, Coriolis parameter, and the free-flow stability N. The relevance of the Coriolis parameter for the boundary layer height estimation in practice is also discussed. If the Coriolis parameter is ignored, two major regimes are found: h ? u*/N for weakly stable conditions and h ? (|Bs|/N?3)1/2 for moderate to very stable conditions.
publisherAmerican Meteorological Society
titleDiagnostic Equations for the Stable Boundary Layer Height: Evaluation and Dimensional Analysis
typeJournal Paper
journal volume46
journal issue2
journal titleJournal of Applied Meteorology and Climatology
identifier doi10.1175/JAM2454.1
journal fristpage212
journal lastpage225
treeJournal of Applied Meteorology and Climatology:;2007:;volume( 046 ):;issue: 002
contenttypeFulltext


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