Surface Layer and Energy Budget Parameterizations for Mesoscale Models

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  • 1 Environmental Protection Agency, Meteorology Laboratory, Research Triangle Park, N.C. 27711
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Abstract

A transcendental equation is presented for the Monin-Obukhov length L based upon (i) the Businger-Dyer surface layer formulations, (ii) parameterizations of the moisture flux, ground storage, and radiation terms in the surface energy budget; and (iii) the wind and temperature at 10 m above a surface characterized by a roughness length zo. The surface temperature, friction velocity and sensible heat flux are obtained from the computed value of L.

Abstract

A transcendental equation is presented for the Monin-Obukhov length L based upon (i) the Businger-Dyer surface layer formulations, (ii) parameterizations of the moisture flux, ground storage, and radiation terms in the surface energy budget; and (iii) the wind and temperature at 10 m above a surface characterized by a roughness length zo. The surface temperature, friction velocity and sensible heat flux are obtained from the computed value of L.

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