摘要
水文模型可以模拟自然流域的降雨径流过程,在降雨径流过程模拟中,水文模型参数的选择往往会影响模型对流域径流过程的模拟效果。针对新安江模型,以陕西黑河金盆水库流域为研究流域,分析新安江模型参数变化对模拟流域降雨径流过程的影响,以确定新安江模型参数的敏感程度,从而服务于研究流域的汛期水文预报参数修正。模拟结果表明:在研究流域新安江模型参数中KKSS、KKG、WLM、WDM、kg、k为敏感参数,对模拟流域降雨径流过程的影响较大;参数WUM、IMP、B、c、SM、EX为不敏感参数,对模拟流域降雨径流过程影响较小。
Hydrological model can simulate the natural river basin of rainfall runoff process in rainfall runoff process,the selection of the hydrological model parameters tend to affect the model simulation results of the runoff process.According to Xin＇anjiang model,taking heihe basin of Jinpen reservoir for the study watershed,the paper analyzed the impact of xin ＇an jiang model parameters on the simulation of rainfall runoff process,so as to determine the sensitive of xin ＇an jiang model parameters,which serve the study basin flood season hydrological forecast parameter correction.The simulation results show that in the research watershed,Xin＇anjiang model parameters such as KKSS,KKG,WLM,WDM,kg,k are sensitive parameter,witch has greater influence on the rainfall runoff process of simulation;Parameters such as WUM,IMP,B,c,SM,EX are non-sensitive parameters witch have less impact on the rainfall runoff process of analog basin.
出处
《水资源与水工程学报》
2012年第5期127-129,共3页
Journal of Water Resources and Water Engineering
关键词
降雨径流
新安江模型
模型参数
局部灵敏性分析
rainfall-runoff
Xin＇anjiang model
model parameters
iocal sensitivity analysis
