森林覆盖对大气边界层风速的影响

The Effect of Forest Conopies on Atmospheric Boundary layer Velocity

研究地-气相互作用时,地面森林覆盖的影响是个重要因素,研究森林内部及其上方湍流流动对研究地-气间的动量、热量和质量交换有着重要意义。本文利用湍流模式计算了森林对大气边界层内Ekman风速螺旋,特别是近地面风速剖面的影响。

While investigating the imteractions between atmosphere and land surface, the effect of plant canopies, e. g. forest, is considered to be an important factor. The turbulence in and above a forest is of subtantial importance to the exchange processes among mass, momentum and heat. This paper proposes a two—layer model of mixed length and calculates the Enman spiral and velocity profile near surface.