Surface boundary layer: Difference between revisions
From Glossary of Meteorology
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<div class="definition"><div class="short_definition">( | <div class="definition"><div class="short_definition">(''Also called'' constant flux layer, surface layer.) A layer of air of order tens of meters thick adjacent to the ground where mechanical ([[shear]]) generation of [[turbulence]] exceeds buoyant generation or [[consumption]].</div><br/> <div class="paragraph">In this layer [[Monin–Obukhov similarity theory]] can be used to describe the [[logarithmic wind profile]]. The [[friction velocity]] ''u''<sub>*</sub> is nearly constant with height in the surface layer. <br/>''Compare'' [[atmospheric boundary layer]], [[radix layer]], [[Obukhov length]], [[aerodynamic roughness length]].</div><br/> </div> | ||
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Revision as of 15:15, 20 February 2012
surface boundary layer[edit | edit source]
(Also called constant flux layer, surface layer.) A layer of air of order tens of meters thick adjacent to the ground where mechanical (shear) generation of turbulence exceeds buoyant generation or consumption.
In this layer Monin–Obukhov similarity theory can be used to describe the logarithmic wind profile. The friction velocity u* is nearly constant with height in the surface layer.
Compare atmospheric boundary layer, radix layer, Obukhov length, aerodynamic roughness length.
Compare atmospheric boundary layer, radix layer, Obukhov length, aerodynamic roughness length.
