针对实测样本容量的局限性及方法选择等可能导致年洪水标准与分期洪水标准不一致问题,分析了年设计洪水与分期设计洪水的概率统计关系,提出了分期设计洪水组合频率与年设计洪水频率的误差估计方法及分期洪水校正方法。实例结果表明,校正后的分期设计洪水不会降低年设计洪水标准,基本符合相应分期的季节丰枯特性。 According to the limitations of the measured sample size and the choice of methods that may lead to inconsistencies between the annual flood criterion and the phased flood criterion, the probabilistic statistical relationship between annual design flood and staged design flood is analyzed. The staged design flood combination frequency and annual design flood frequency Error estimation method and staged flood correction method. The results of the example show that the corrected design flooding does not reduce the annual design flood standard and basically complies with seasonal abundance characteristics of the corresponding staging.