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用黑河实验中化音站(戈壁)加强期的湍流脉动场资料对降水强迫影响戈壁局地气候系统水、热输送的过程进行了系统分析。结果表明:降水强迫会使戈壁局地气候系统出现暂时的不平衡状态,要重新回到平衡状态需要通过物质和能量的重新调配来实现。该过程可划分为4个阶段,各个阶段间的感热、潜热和水汽通量均有较大差异。从近地层水、热输送特征看,受降水强迫后非平衡状态的张弛时段大约为4d。在整个张弛期间,地表接收到的降水约有2/3通过地表蒸发后输送到大气,其余部分可能被渗入地下
Based on the data of turbulent pulsation field intensified by Huyin station (Gobi) in Heihe experiment, the process of precipitation and forced water and heat transport in the Gobi climate system was systematically analyzed. The results show that the rainfall will cause a temporary imbalance in the climate system in the Gobi area, and the return to equilibrium needs to be achieved through material and energy redeployment. The process can be divided into four stages, each stage of the sensible heat, latent heat and water vapor flux are quite different. From the characteristics of near-surface water and heat transport, the relaxation period of non-equilibrium state after being forced by precipitation is about 4 days. During the entire relaxation period, about two-thirds of the precipitation received by the surface is transported to the atmosphere through surface evaporation and the rest may be infiltrated into the ground