Improvement of Surface Flux Calculations in the Atmospheric Surface Layer

Abstract

Simple and efficient formulas for calculating surface fluxes are presented for the nondimensional profile functional forms of wind and temperature in the atmospheric surface layer. Four formulations representing nondimensional profile functional forms are examined. New approximate solutions for the relationship between z/L and the bulk Richardson number are proposed. These new solutions are an improvement over the existing approximate solutions and give much better agreement with the numerical solutions obtained by iteration. The approach can be extended to other similar nondimensional profile functional forms.