青藏高原五道梁地区湍流输送特征的研究

根据１９９４年６－７月在青藏高原五道梁地区的湍流脉动观测资料，分析了该地区近地层能量平衡、感热和谱热的日变化及湍流强度和端流谱特征。结果表明：晴天该地区近地层能量基本平衡，各能量分量的日变化与常情况相同；白天感热通量的输送占主导地位，潜热通量占次要地位，符合半干旱的一般特征。

A STUDY OF TURBULENT TRANSFER CHARACTERISTICS IN WUDAOLIANG AREA OF QINGHAI-XIZANG PLATEAU

The paper analyses the turbulent data ,which collected from the Wudaoliang area of Qinghai-Xizang Plateau in June July 1994. The results show:in the area,the energy fluxes of surface layer can approximately balance. The diurnal variations of net radiation,sensible heat,latent heat and ground heat flux are normal. The sensible heat flux is dominant,the latent heat flux is second in energy balance. Spectra of wind component analysis show,in near neutral stability,the vertical velocity spectral peak is about f=0.3,it is good when compared with others,but the longitudinal velocity (u spectrum) peak is about f=0.1,the cross velocity (v spectrum ) is about f=0.2,which are higher than other results. There are same results in vertical velocity spectrum compared with other results.