摘要
本文着重研究青藏高原近地层的湍流结构。使用梯度观测和热量平衡方法,确定了感热湍流系数(Kh)表达式中的无量纲系数1/ψmψh,并表明它与W.O.Pruitt等人的结果相当一致。本文还计算了睛天和多云条件下1米高度上感热湍流系数,最后比较了高原和低海拔平原上感热湍流系数与动量湍流系数的比值αT。
This study deals with the turbulent structure in the surface layer over the Qing-hai-Xizang Plateau. Using gradient traesfer and heat balance methods we have determined the nondimensional coefficient 1/ m h in the expression of turbulent transfer coefficient for sensible heat(Kh). It is found that the results are in good agreement with the l/ m h obtained by Pruitt, et al. The Kh at a height of lmunder cloudy and cloudless conditions is calculated.Finally, the ratio of Kh to mome-ntum turbulent coefficient over the plateau is compared with those over plains.
出处
《气象科学》
CSCD
北大核心
1989年第3期236-245,共10页
Journal of the Meteorological Sciences
