1暴雨走向对汇流的影响流域汇流的影响因素很多,洪水预报汇流计算的准确与否,重要一项在于对降雨的时空分布考虑得是否科学合理。对于无条件分单元或分区进行汇流计算的流域,一般采用综合参数预报模型。模式单位线汇流模型考虑了汇流影响因素的模糊性,用模糊识别理论建立单位线与汇流模式的关系,进行单位线的求解和选用,具有较强的适应性,是一个发展 1 Impact of heavy rain on the confluence There are many influencing factors of the confluence in the catchment. Whether the prediction of confluence of the flood forecast is accurate or not depends on whether the spatio-temporal distribution of rainfall is scientifically reasonable or not. For unconditionally subdivided watersheds or subzones, the integrated parameter forecasting model is generally adopted. The model unit line convergence model takes into account the fuzziness of confluence influencing factors, establishes the relationship between unit line and confluence pattern with fuzzy recognition theory, and solves and selects unit lines with strong adaptability and is a development