摘要
以莫宁－奥布霍夫相似理论为基础，利用风温梯度观测资料，采用迭代方法确定湍流特征参量Ｕ＿＊、Ｔ＿＊、Ｌ和廓线参数β、γ，得出了适用于确定农田植被层上方风温廓线和湍流通量的普适函数半经验表达式；分析讨论了大气层结稳定度与风温廓线曲率、廓线参数以及普适函数的关系。
On the basis of the Monin-Obukhov similarity theory, turbulence characteristicparameters U_*,T_*and L, wind speed and temperature profile parameters βand γ are determinedby means of the iteration method,using the experimental data over a wheat field. The semi-empirical expressions of universal functions are given,The influence of the stratified stability onwind and temperature profiles curvatures,profile parameters and the universal functions isdiscussed also in this paper。
出处
《南京气象学院学报》
CSCD
1995年第3期404-409,共6页
Journal of Nanjing Institute of Meteorology
关键词
农田
湍流通量
风温廓线
相似理论
farmland vegetation,turbulence flux,wind-temperature profile,similarity theory,universal function
