本文在分析戈壁地区湍流能谱特征的基础上, 利用惯性副区有关规律, 对湍流能量耗散率ε和温度脉动耗散率N作了初步研究, 得到无因次湍流能量耗散率Φ_E为???无因次温度脉动耗散率ΦN为???文中讨论了能量收支方程和温度方差收支方程, 并用得到的Φ_E和ΦN关系估算了近地面层的速度和温度特征尺度u_*和T_*, 与涡旋相关方法得到结果比较, 一致性较好。

In the paper, turbulent energy dissipation rate e and temperature variance disssipation rate N have been analysed by using turbulent energy spectrum theory in inertial subrange in the Gobi desert region. The dimensionless dissipation rates of turbulent energy(Φ_ε) and temperature variance(Φ_N) are ??? The turbulent kinetic energy budget and temperature variance budget are discussed. Mean while, the scaling parameter u_* and T_* in surface layer are calculated by the spec-tral density dissipation technique and compared with the result of eddy-correlation method, both of them are in good agreement.