作 者: (张生宇);
机构地区: 辽宁省水文局,沈阳110000
出 处: 《水科学与工程技术》 2017年第4期6-9,共4页
摘 要: 采用PID优化算法对分布式水文模型VIC模型进行参数自动优化计算,并对比分析参数优化前后对分布式水文模型模拟精度的影响。研究结果表明:参数优化后,分布式水文模型VIC模型在年尺度和小时尺度的水文模拟精度均有所改善,误差减少13.8%和13.2%,拟合度提高0.28和0.14。研究成果对于分布式水文模型参数优化方法提供参考价值。 In this paper, PID optimization algorithm is used to automatically optimize the VIC model of distributed hydrological model, and the influence of the parameter optimization on the simulation accuracy of distributed hydrological model is analyzed. The results show that the hydrological simulation accuracy of the distributed hydrological model VIC is improved by 13.8% and 13.2% on the annual scale and hour scale, and the fitting accuracy is improved by 0.28 and 0.14,respectively. The research results can provide reference value for parameter optimization of distributed hydrological model.