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在大流域内由于降雨特性,产流、汇流特性及时空上分布复杂,降雨径流预报计算模型的条件相差过大,可用PC—1500可编程序计算器,按分单元进行计算的方法来实现水文预报作业的,我们在辽宁省参窝水库的预报方案中,就使用了这种方法。对于多单元预报作业的程序则是将计算雨量程序、产流程序.汇流程序分别编成三个子程序,然后对各个单元分别进行计算,再将各单元的流量过程进行同时段相加。具体程序设计见框图。另外,对于较大流域一般都在其干、支流上修建有水
Due to the characteristics of rainfall, runoff and confluence in the large river basin and complicated distribution in time and space, the conditions of the rainfall runoff forecasting model differ greatly. The hydrological forecast can be realized by PC-1500 programmable calculator and sub-unit calculation In operation, we have used this method in the prediction program of Shenwo Reservoir in Liaoning Province. The program for multi-element forecasting is to calculate the rainfall program and the production flow program, and the confluence programs are respectively compiled into three sub-programs, and then each unit is calculated separately, and the flow process of each unit is summed over the same period. See the block diagram of the specific programming. In addition, for larger river basins are generally dry, tributaries of water