三水源水文预报，概念模型，新安江模型。三水源新安江模型是一套比较科学、完整、适用性较强的流域水文模型。该模型把全流域分成许多块单元流域，对每个单元流域作产汇流计算，得出单元流域的流量过程，再进行单元流域出口断面以下的河道洪水演算，求得流域出口断面的流量过程-Three water hydrological forecasting, conceptual model, Xin' anjiang model. Xin' anjiang model is a set of three water more scientific, complete hydrological model applicability strong. The model is divided into many blocks of the entire watershed basin unit, for each unit of watershed runoff calculated the flow of the process unit basin, then the cross section of the unit below the river basin flood routing, the flow of the cross section obtained by the process of watershed