阿克苏河源流径流模拟初探

Simulation of runoff process in headstream of Aksu River

观测困难、站点稀少、自然条件恶劣是高寒山区水文系统研究面临的基本问题。特殊的自然地理条件给水文过程研究带来了极大的复杂性,同时也阻碍了高寒山区水文过程和机理研究的发展。本文以阿克苏河源区库玛力克河流域为研究区,采用含融雪结构的新安江模型模拟该流域的径流过程;利用出山口径流数据对模型进行率定和检验。结果表明:含融雪结构的新安江模型能在水文、气象资料稀缺的条件下,模拟库玛力克河流域的日径流过程,并且与实际的径流过程具有较好的同步性,径流量相对误差15%以内,但精度还有待提高。为资料缺乏的高寒山区河流径流过程进一步研究提供参考。

It is difficult to make research on hydrology system in alpine mountains due to bad natural conditions,rare ground observing stations and limit availability of observing condition.The special natural and geographical conditions not only make the processes of studying hydrology much complicated,but also hinder the development of exploring the processes and principles of hydrology system in the alpine cold areas.Snowmelt structure of Xin'anjiang model was applied to simulate runoff process of Kumalike River,a part of Aksu River,and validated according to the statistical data of runoff collected from hydrology stations.The results demonstrated that Xin'anjiang model could be used to simulate the runoff process in alpine cold regions under the condition lack of hydrological and weather data,and it has a better consistency with the actual situation,the relative error of runoff volume is less than 15%,however,the simulating precision need to be improved.The thesis could provide good reference for the further study of runoff processes in the alpine cold areas.