A modified parameterization of flux-profile relationships in the surface layer using different roughness length values for heat and momentum |
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| Authors: | Patrick Mascart Joel Noilhan Hervé Giordani |
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| Institution: | (1) Laboratoire d'Aérologie, Université Paul Sabatier, 118, route de Narbonne, 31062 Toulouse, France;(2) Centre National de Recherche Météorologique, Météo-France, CNRM/GMME/MC2, 42, Av. Coriolis, 31057 Toulouse, France |
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| Abstract: | The surface-layer flux-profile formulae of Louis (1979), used in many atmospheric models, are modified in a simple way to allow for different values of the roughness lengths for heat and momentum. The modified set of formulae simplifies the calculation of surface-layer fluxes over most natural land surfaces, where the roughness length for momentum can be almost an order of magnitude greater than that for heat. |
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