【摘要】 本文利用阿克苏水平衡站32m铁塔的风速和温度梯度观测数据,对荒漠-绿洲交界处风、温铅直分布廓线及其日变化规律的分析表明,冬夏均存在强烈逆温,逆温是本地风、温铅直分布的主要特点。以莫宁-奥布赫夫相似理论为基础的廊线拟合在中性与弱稳定(Ri<0.05)时,风速遵循对数分布规律;0.05<Ri<0.25时,风速廓线遵循对数加线性分布规律;Ri> 0.25时,风速廓线拟合出现异常。更多还原

【Abstract】 By using data of mean wind and temperature obtained from a 32m tower at the Tarimwater balancing experimental Station,the vertical distribution of mean wind and oasis hadbeen analyzed in this paper,the result shows that inversion is the main characteristic of thevertical distribution of temperature both winter and summer. Based on the similarity hypothesis of profiles between wind and temperature of Moninand Obukhov, the diabatic mean profile forms in the surface layer are studied.It is found,concordantly from the observational data of Tarim, that the logarithmic law of wind profile isvalid for Ri values between -0.10 and+0.25,which includes a small range of slight unstableand a wide range of slight stable conditions. In stable conditions for Ri values between+0.25and +1.00, the log-linear law of wind profile is valid according to the profile relationships ofE.K. Webb. The extension of profile relationships to strong stable conditions, for Ri> 1.00,shows that the log-linear law of wind profile is not valid according to that of E. K. Webb.更多还原