水文资料, 一致性分析, 沙坪水文站, 系列还原

Taking Shaping hydrological station of Dadu river as an example, this paper analyzes the consistency of hydrological data series of the station from 1966 to 1993 and 1995 to 2023. Analysis results show that the consistency of the data series is affected by the operation of Pubugou hydropower station. Combined with the operation data of Pubugou reservoir, the water balance method is used to restore the runoff and flood process of Shaping station to the natural state. The runoff data before and after restoration conform to the operation characteristics of Pubugou reservoir. The proportion of restored runoff in wet and dry seasons is close to that of the natural series before the construction of Pubugou reservoir, and the flood peak aligns with the natural flood at the adjacent hydrological station. The restored data series of Shaping hydrological station have good consistency, which can be used in relevant engineering design.

hydrological data, consistency analysis, Shaping hydrological station, series restoration