TOPMODEL模型在岩溶地区的改进与应用

为合理评价岩溶地区水资源,在充分考虑岩溶地区水文要素的空间异质性及各水文单元之间的相互联系的基础上,作者结合TOPMODEL模型的结构特点, 对模型进行了改进。该改进模型在子流域中采用TO PM ODEL模型作产流计算,根据河道的不同属性推求汇流时间,建立汇流模型,增强了模型的分布性,解决了由于岩溶地区地下河的存在无法使用TOPMODEL模型的问题。将此改进模型应用于鄂西蛤蟆颈水库控制流域进行模拟研究,得到了较为满意的模拟结果。 

Improvement and application of TOPMODEL in karst region

In order to evaluate the water resources in karst region reasonably,the TOPMODEL was improved according to its character of structure.And this improvement was based on considering the spatial variability of hydrological factors and the interrelation of hydrological cells adequately.The improved model adopted TOPMODEL to calculate the runoff generation in sub-catchments. According to the different attribute of river way,such as underground river,gradient,roughness,the conflux time was ascertained,conflux model was set up and the new model improved the distribution.And the problem that TOPMODEL can't be used in karst region because there is underground river was resolved.The result was satisfied that the improved TOPMODEL was applied in the controlled catchment by Hamajing reservoir in the western Hubei province,China.