Abstract
The convective boundary-layer scaling expressions presented by Wyngaard and LeMone (1980) are compared with predictions from a turbulence closure model. We first examine a model experiment involving a clear-air, convectively driven boundary layer overland. The model results agree well with scaling expressions and observations in the lower boundary layer and near the inversion. In the mid-boundary layer region, however, the closure model underestimates the temperature structure parameter CT2 and overestimates the humidity structure parameter Cq2. A cloud-topped marine boundary layer is examined in a second experiment which uses AMTEX data. Order-of-magnitude differences are found here between interfacial-layer scaling expressions and closure model predictions. Potential sources of this disagreement are discussed.
Keywords
ScalingBoundary layerClosure (psychology)TurbulenceStatistical physicsConvective Boundary LayerMechanicsPhysicsPlanetary boundary layerMeteorologyGeometryMathematics
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Publication Info
- Year
- 1981
- Type
- article
- Volume
- 38
- Issue
- 4
- Pages
- 751-761
- Citations
- 12
- Access
- Closed
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Cite This
Stephen D. Burk
(1981).
Comparison of Structure Parameter Scaling Expressions with Turbulence Closure Model Predictions.
Journal of the Atmospheric Sciences
, 38
(4)
, 751-761.
https://doi.org/10.1175/1520-0469(1981)038<0751:cospse>2.0.co;2
Identifiers
- DOI
- 10.1175/1520-0469(1981)038<0751:cospse>2.0.co;2