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论文类型：期刊论文

发表时间：2016-10-01

发表刊物：WATER SCIENCE AND TECHNOLOGY-WATER SUPPLY

收录刊物：SCIE、EI、Scopus

卷号：16

期号：5

页面范围：1467-1476

ISSN号：1606-9749

关键字：DSMSC-TOPMODEL; dynamic soil moisture storage capacity; flood; hydraulic projects

摘要：Many hydraulic projects such as reservoirs, ponds and paddy fields as well as soil and water conservation engineering projects have been constructed to improve utilization of water resources upstream of the Wudaogou station basin in Northeast China in recent years. As a result, the local hydrological characteristics of the basin and the flood runoff and process have been changed. These changes in the basin characteristics make basin hydrological forecasting more difficult. In order to model and assess this situation, the TOPMODEL, which includes the dynamic soil moisture storage capacity (DSMSC-TOPMODEL), is used in this study to simulate the flood impact of hydraulic projects. Furthermore, the Bayesian method is used to evaluate model parameter uncertainty and assess the TOPMODEL's performance over the basin. Flood simulation results show that accuracy is significantly improved when the stock version of TOPMODEL is replaced with DSMSC-TOPMODEL, with the qualified ratio of forecasting runoff yield increasing from 65% in the former to 88% in the latter. Moreover, these flood simulations are more suitable for helping observers visualize the process.