含融雪结构的新安江模型在叶尔羌河流域的应用

在以融冰雪为径流主要补给源的河流,气温对径流的影响非常大。在缺乏资料地区径流模拟中,应充分挖掘可利用资料。采用含融雪结构的三水源新安江模型,借助临近研究区气象站探空气温,估算山区气温垂直分布,对叶尔羌河2001-2005年的日径流过程进行了模拟,模拟结果基本满意,径流量相对误差在15%以内,表明对叶尔羌河径流过程模拟是可行的,但径流过程平均误差偏大,还有许多工作需要深入。

Application of Xin'anjiang Model with Snowmelt Structure to Yeerqiang River Valley

Based on the river having melted ice-snow as the main runoff source,the air temperature plays a leading role in the runoff. We should fully exploit available data in the runoff simulation where there was short of data. This article,by virtue of sounding air temperature from the wealber station in the vicinity of the research areas, estimates vertical distribution of air temperature in mountain area, and utilizes the Xin＇anjiang watershed model with snowmelt structure to conduct daily runoff process simulation in Yeer- qiang River from 2001 to 2005. The simulated results are acceptable,relative errors between the simulated and the observed runoff volume are less than 15% ,which shows that runoff simulation of Yeerqiang River is feasible. Nevertheless, the average errors between the simulated and the observed runoff process is large. Still,further work should be studied deeply.