摘要
Sobol法是最具代表性的全局敏感性分析方法。应用Sobol全局敏感性分析方法分析TOPMODEL模型的参数对Nash-Sutcliffe效率系数、总水量平衡误差系数、低水流量误差系数和高水流量误差系数4个目标函数的敏感性。通过对白盆珠水库、流溪河水库的分析结果表明,较敏感的参数有M、lnT0、Sr0和Rv,Sobol方法给出的定量敏感度能衡量敏感性表现的差异,并反映出了模型"异参同效"的现象。
The Sobol′s method is the most representative global sensitivity analysis method,and it is a quantitative model-independent method for global sensitivity analysis of model output.By Sobol global sensitivity analysis method,the sensitivity of TOPMODEL parameters to 4 object function of Nash-Sutcliffe efficiency coefficient,total water balance error coefficient,low discharge error coefficient and high discharge error coefficient is analyzed.With the application of Sobol′s method to Baipenzhu and Liuxihe reservoirs,it shows that sensitive parameters include M,lnT0、Sr0 and Rv and the quantitative sensitivity given by Sobol′ model can measure the different performance of sensitivity,which can reflect the phenomenon of ＂equifinality for different parameters＂.
出处
《人民长江》
北大核心
2010年第19期91-94,107,共5页
Yangtze River
基金
国家自然科学基金(50479033)
广东省科技计划基金(2009A030302003)
