Abstract
The horizontal grid mesh in atmospheric forecast models is almost always larger than several kilometers, and hence all turbulent eddies within the Planetary Boundary Layer (PBL) are subgrid-scale motions. Therefore the net effect of PBL turbulence has to be parameterized as an ensemble mean through an ensemble-mean turbulence model. There exist many PBL parameterization schemes. Based on a survey Wyngaard and Moeng performed in 1990 (Taylor and Wyngaard [24]), we found these PBL schemes can be categorized into six generic types:
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1.
Stablility Bounds model
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2.
Bulk model
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3.
Transilient turbulence model
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4.
Richardson-number dependent K model
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5.
K-profile model
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6.
Higher-order closure approach
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Moeng, CH. (1998). Parameterizations of the Convective Boundary Layer in Atmospheric Models. In: Plate, E.J., Fedorovich, E.E., Viegas, D.X., Wyngaard, J.C. (eds) Buoyant Convection in Geophysical Flows. NATO ASI Series, vol 513. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5058-3_13
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DOI: https://doi.org/10.1007/978-94-011-5058-3_13
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