【摘要】 模式是以 Nickerson 等(1986)的静力大气模式与 McCumer 等(1981)的土壤模式相耦合为基础,而且仅考虑平坦地形和无天气系统扰动的晴朗天气条件作敏感性试验,以便研究非均一下垫面状况对行星边界层气候的影响。试验表明,模式计算结果对植被覆盖因子和背景水平风速十分敏感,然而对植被粗糙度则不大敏感。更多还原

【Abstract】 The paper presents a sensitivity experiment in order to study the influence of the inhomoge-neous surface conditions on the PBL climate,using a coupled model with flat terrain and clear skyand calm day in an undisturbed synoptic condition,in which the hydrostatics atmosphere modeland the soil model were developed by Nickerson et al.and McCumber et al.,respectively.The re-sults show that it is highly sensitive to changes of the vegetative cover and background windspeed,and less to the roughness of the vegetation.更多还原