Analysis of the Loss of Water Surface Evaporation and Its Variation Characteristics in Zhuzhuang Reservoir
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Abstract:
Based on the synchronous observation results of the 20 m2 evaporation pool and E601 type evaporator at the Hengshui experiment station, the conversion coefficients of the two instruments were calculated. According to the observation data of E601 type evaporator in the Zhuzhuang reservoir, the amount of water surface evaporation in the reservoir was calculated. Based on the evaporation data and reservoir conditions from 2000 to 2010, the average annual evaporation in the Zhuzhang reservoir was calculated as 794.38×104 m3 and the evaporation per unit area was 85.60×104 m3/km2. The maximum monthly average evaporation, 106.30×104 m3, occurred in May, while the minimum monthly average evaporation, 12.96×104 m3, occurred in January. The extreme ratio of variation within a year was 8.20, and the extreme difference was 93.34×104 m3.
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