Seite - 318 - in Book of Full Papers - Symposium Hydro Engineering

A(Yongshan County),B (Jinyang) and C County (Leibo) etc., as illustrated in Figure 3. Water depth in the reservoir rises from B County to A County, when the dam comes into effect to store water,and the water depth next to the dam is deepest.The water surface area and water temperature of the reservoir vary from Spring to Winter for various reservoir water levels. Figure 2. Giant reservoir of the hydropower station in southwest China Figure 3. Geographical position of the hydropower station and main reservoir district : ▲stand for measurement points, which could measure air temperature and humidity when reservoir comes into water storage or other conditions As mentioned in the paper[17],air humidity would be a specific constant value when, air vapor and water surface evaporation are in dynamic equilibrium. In addition,the vapor medium exchange demonstrates that there exists a law of mutual influence between air humidity and both air temperature and reservoir water temperature.Therefore, there would be significant variations in air temperature and air humidity would around the reservoir,since rainfall and water temperature vary seasonally. 318