Stable atmospheric boundary layer over a uniform slope : Some theoretical concepts

Theoretical arguments are developed to describe the effects of a uniform slope on the development of the stably stratified atmospheric boundary layer (SBL). A maximum sustainable surface buoyancy flux exists for the SBL overlying a uniform, non-sloping surface. In this study it is shown that the SBL...

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Bibliographic Details
Published in:Boundary-layer meteorology 2006-08, Vol.120 (2), p.219-227
Main Authors: MAGUIRE, Andrew J, REES, Julia M, DERBYSHIRE, Stephen H
Format: Article
Language:English
Subjects:
Atmospheric boundary layer
Atmospheric models
Boundary layers
Buoyancy
Convection, turbulence, diffusion. Boundary layer structure and dynamics
Earth, ocean, space
Exact sciences and technology
External geophysics
Meteorology
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Summary:Theoretical arguments are developed to describe the effects of a uniform slope on the development of the stably stratified atmospheric boundary layer (SBL). A maximum sustainable surface buoyancy flux exists for the SBL overlying a uniform, non-sloping surface. In this study it is shown that the SBL overlying a uniform shallow slope (with gradient of the order of 1:1000) also supports a maximum sustainable buoyancy flux, B ^sub max^, but that the value of B ^sub max^ is influenced by the gradient of the slope, γ. It is demonstrated that in the limit γ [arrow right] 0, results for the SBL over a horizontal surface are recovered.[PUBLICATION ABSTRACT]
ISSN:0006-8314
1573-1472
DOI:10.1007/s10546-006-9055-7