HSPF模型在滇池流域水文模拟中的应用

HSPF Model on Hydrological Simulation of Watershed of Dianchi Lake Watershed

针对滇池流域入河河道较多、人为因素影响突出等特点,提出基于HSPF模型的入湖水量模拟方法,采用资料较齐全的2个子流域、连续3年的逐日流量数据对模型进行了校准,在此基础上采用连续3年的流量数据对模型进行验证,选择相对误差(RE)、相关系数(R2)、Nash-Suttcliffe效率系数(Ens)对模型的适用性进行评价。研究结果表明,模型在滇池流域的水文模拟结果比较理想,在年径流量、季度流量还是日径流量模拟都得到较好的效果,这表明HSPF模型在研究区对流域长期连续的径流量模拟具有较好的适用性。

Dianchi lake watershed was selected as the study area to simulate the runoff by distributed HSPF( Hydrological Simulation Program- Fortran) model. Daily flow data from the year of 2007 to 2009 was used to calibrate HSPF model, by using the parameters sensitivity analysis and correction, the simulated flow and measured data were fitted well. The model was verified by daily flow data for three years. A relative error( RE), Correlation Coefficient( R2) and Nash- Sutcliffe efficiency coefficient were calculated to evaluate applicability of HSPF model, and results showed that HSPF model in the study area has good simulation for long term hydrological modeling.