斜坡地形夜间大气边界层一维非定常模式的研究

A MODEL STUDY OF THE ONE-DIMENSIONAL NONSTATIONARY NOCTURNAL BOUNDARY LAYER OVER A SLOPED TERRAIN

本文建立了斜坡地形一维非定常夜间大气边界层的数值模式。着重讨论斜坡地形上的Ekman螺线的特性,指出Ekman螺线出现反时针旋转的条件,并给出摩擦力项与Ekman螺线旋转方式的关系。

In this study, a numerical model of one-dimensional nonsta-tionary boundary layer over a sloped terrain is established. Emphasis isput on the characteristics of Ekman spirals over the sloped terrain.Conditions in which Ekman spirals move counterclockwise (ccw) and therelationship between frictional force and Ekman spiral pattern are givenas well.