基于HBV模型的牡丹江流域的水文过程模拟研究

Applying HBV Model to Simulate Hydrological Process Simulation of the Mudan River Basin

流域水文模拟是在认识水文规律的基础上对流域水文过程的一种数学描述。开展寒区水文过程模拟研究对水资源的可持续利用意义重大。以牡丹江流域5个水文站为研究对象,利用HBV模型模拟了流域的径流过程,讨论了参数的敏感性。结果表明,在资料较为充分的条件下,HBV模型对牡丹江流域模拟结果总体良好,模型效率系数大多在0.5以上,可适用于我国寒区水文过程的研究。资料的可利用性对模拟精度影响显著,在资料相对欠缺的流域模拟精度相对较差,资料短缺地区的HBV模型应用成为了亟待研究的重要方向。

Watershed hydrological simulation aims at demonstrating the hydrological processes mathematically in the base of hydrological knowledge. It is of great significance to implement hydrological processes simulation study for the sustainable utilization of water resources. Taking the Mudan River as a case, the HBV model is applied to five hydrometric stations on the Mudan River for daily discharge simulations. The results show that HB~ model performs is suitable for the hydrological simulation for well-gauged catchments with Nash coefficient over O. 5, and the model can therefore be extensively applied to other cold areas in North China regions. However, the accuracy of discharge simula- tion greatly depends on the availability of observation data. It is hard to get high accuracy of discharge simulation for poorly gauged catchments. The application of HBV model to ungauged areas should be enhanced in further studies.