Journal of South China University of Technology (Natural Science Edition) ›› 2007, Vol. 35 ›› Issue (3): 137-142,149.

• Architecture & Civil Engineering • Previous Articles     Next Articles

Uncertainty Analyses of Watershed Hydrological Model Based on GLUE Method

Huang Guo-ru1  Xie He-hai2   

  1. 1. School of Architecture and Civil Engineering , South China Univ. of Tech. , Guangzhou 510640 , Guangdong , China;2. State Key Laboratory ofHydrology-Water Resources and Hydraulic Engineering , Hohai Univ. , Nanjing210098 , Jiangsu , China
  • Received:2006-03-29 Online:2007-03-25 Published:2007-03-25
  • Contact: 黄国如(1969-)，男，博士，副教授，主要从事流域水文模拟及水文预报研究. E-mail:huanggt@scut.edu.cn
  • About author:黄国如(1969-)，男，博士，副教授，主要从事流域水文模拟及水文预报研究.
  • Supported by:

    国家自然科学基金资助项目( 50309002) ;教育部新世纪优秀人才支持计划资助项目(NCET-05 -0483) ;南京师范大学地理信息科学江苏省重点实验室开放基金资助项目(JK20050305)

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Abstract:

The GLUE method is applied to the uncertainty analyses of TOPMODEL hydrological model , with the Xingfeng catchment , a tributary of Dongjiang watershed , as the research object. The results show that the parame-ters m , T0 and RV are sensitive , any a slight change of them will inf1uence the simulated results , while SR0 is not sensitive. Moreover , the observed flow hydrographs of two selected floods cannot be completely comprised in the
upper and lower limits of the simulated hydrographs. Some flow values lie out of the 90% confidence interval , indica-ting that TOPMODEL model cannot simulate the whole flow process at the Xingfeng catchment due to the uncertainty of TOPMODEL model.

Key words: TOPMODEL model, uncertainty anaylsis, GLUE method, Xingfeng catchment