A NUMERICAL EXPERIMENT OF EFFECTS OF TURBULENT TRANSFER PROCESSES ON THE LAND AND SEA BREEZE

Abstract

A two-dimensional land and sea breeze model was integrated numerically for some different formulae of vertical turbulent exchanges of heat and momentum in order to examine the effect of the formulations on land and sea breeze circulation. For the upper boundary layer the use of a formula of turbulent exchange coefficient K to be locally estimated by the thermal stratification and the vertical wind shear yields an extremely weak land and sea breeze. The formula of K used by Estoque [1961] which takes into consideration the Richerdson number of the surface layer gives some characteristic features of the land and sea breeze. It is suggested that the effect of so-called penetrative convection should be taken into account in turbulent transfer processes.