水科学进展2013，Vol.24Issue(2)：169-176,8.
基于土壤属性的VIC模型基流参数估计框架
Estimation of baseflow parameters in variable infiltration capacity model using soil properties
摘要
Abstract
Equifinality is a difficult but unavoidable challenge in hydrologie modeling. A framework is established and presented to estimate the three baseflow parameters in the Variable Infiltration Capacity ( VIC ) model using soil properties. The new parameter estimation method is tested for streamflow simulations on three distinct catchments in hydro-climatic conditions in China. The simulations are compared to the previous calibrated results. The new method can reduce the number of VIC calibration parameters from six to three, thus decreasing model equifinality and uncertainty. The sensitivity of the calibrated parameters under the new framework is improved as demonstrated by the Monte Carlo simulations. The parameter uncertainty can also be reduced. In addition, the uncertainty of VIC simulations is assessed using the Generalised Likelihood Uncertainty Estimation ( GLUE) method. Results show that the uncertainty of stream-flow simulations (or, confidence interval) is low with the new parameter estimation method compared to the uncertainty resulted from the previous calibration method. The new method is applicable to the VIC model and other similar hydrologie models for streamflow simulations.关键词
基流参数/VIC模型/土壤属性/敏感性/不确定性Key words
baseflow parameters/variable infiltration capacity model/soil properties/sensitivity/uncertainty分类
建筑与水利引用本文复制引用
鲍振鑫,张建云,刘九夫,王国庆,FU Guobin,贺瑞敏,严小林..基于土壤属性的VIC模型基流参数估计框架[J].水科学进展,2013,24(2):169-176,8.基金项目
国家重点基础研究发展计划(973计划)资助项目(2010CB951103) （973计划）
