分析3座水库与后大成水文站的实测洪水系列，得出其洪水之间的关系，认为上游其中两座水库对下游断面洪水的影响因素可相互抵消，从而简化了洪水的地区组合，使得在上游水库缺乏入、出库资料的条件下，设计断面洪水分析计算得以进行。%This paper analyzes the measured flood series of the three reservoirs and Houdacheng hydrological stations. The relationship between floods is concluded, and the influence factors of the two of upstream reservoirs to the downstream section can offset each other. According that, when lacking of the data of the upstream reservoir, we can still analysis and calculate the design section flood.
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