摘要
基于新安江模型,利用参数移植方法开展嵌套式流域无资料情况下的水文模拟研究。结果表明,产流参数的移植精度较高,汇流参数的移植精度相对较低,流域坡度对其影响较大。在新安江次洪模型的实际应用中,需要对地貌特征加强考虑。通过对流域水文相似性分析,发现在地形指数分布曲线相似的情况下可以移植模型的产流参数;当采用地貌单位线进行流域汇流计算时,参数移植的应用效果较好。
Based on the Xin＇anjiang model,the parameter transformation method was used for hydrological simulations in a nested ungauged basin.The results show that the accuracy of runoff simulations is better than that of flood peak simulations due to the effect of the basin slope.Hence,the effect of topographic attributes should be considered in operational application of the Xin＇anjiang model to ungauged basins on an hourly time scale.The analysis of hydrological similarities indicates that the runoff parameters can be transformed when the distribution functions of the topographic index are similar for gauged and ungauged basins.Better results can be achieved using the geomorphologic unit hydrograph in ungauged basins.
出处
《河海大学学报（自然科学版）》
CAS
CSCD
北大核心
2013年第2期108-113,共6页
Journal of Hohai University(Natural Sciences)
基金
国家自然科学基金(41101017
41130639
51179045)
公益性行业(气象)科研专项(GYHY201006037)
关键词
新安江模型
水文模拟
水文相似性
参数移植
无资料地区
屯溪流域
嵌套流域
Xin＇anjiang model
hydrological simulation
hydrological similarity
parameter transformation
ungauged basin
Tunxi Basin
nested basin
