《水文学杂志》刊登“关于新安江模型与MODFLOW耦合问题的讨论”

作者：Mao Yuanyuan, Zhang Xuegang, Li Zhijia

Journal: Journal of Hydrologic Engineering，2012年8月20号，第7卷第3期，296–327页

关键词：新安江模型；MODFLOW；耦合；淮河流域

中文摘要：本文研究了将新安江模型和MODFLOW耦合生成一个完整流域水文模型的可能性。新安江模型是中国应用最为广泛的一个流域水文模型，而MODFLOW也是地下水模型中认可度最高的。本文以模型研究区的新安江模型和SWAT模型为基础，对地下水补给量与总的径流量之间的相关性进行了分析，由此计算出新安江模型中次级盆地的地下水补给量。运用松散耦合方法，通过新安江模型中的次级盆地界面和MODFLOW中的单元，可以讲地下水补给的空间分布引入到MODFLOW中的RCH程序包中，从而成功实现了两种模型之间的耦合。这一耦合模型运用到了中国淮河流域地下水占支配地位的张集地区。应用结果表明，新安江-MODFLOW耦合模型模拟所得的地下水位结果与水位观测值之间拟合效果较好。但是，研究还表明，为了实现新安江模型与MODFLOW之间的直接耦合，还需做进一步的研究从而对耦合模型进行改进。此外，本文中所应用的方法仅限于对新安江模型和MODFLOW进行单向的耦合，其只能对地下水位进行模拟，并未考虑地表水可能发生的反馈变化。因此，仍需进行深入研究从而进一步提高新安江-MODFLOW耦合模型的适用性。

On the Coupled Simulation of Xinanjiang Model with MODFLOW

Authors:Mao Yuanyuan, Zhang Xuegang, Li Zhijia

Journal:Journal of Hydrologic Engineering，Volume:7；Issues: 3，296–327

Key Words：XinanjiangModel;MODFLOW;coupling;Huai River Basin

Abstract：This paper investigates the probability of integrating Xinanjiang model, the most widely used watershed hydrological model in China, with the fully-distributed groundwater model, MODFLOW for processing a coupled flow simulation. Based on the flow simulation of Xinanjiang and SWAT model in the case study area, the correlation between the groundwater recharge and the total flow runoff is analyzed, which is then applied to compute the groundwater recharge in sub-basins in Xinanjiang model. By applying a loosely coupled modeling approach, the spatially distributed groundwater recharge is introduced into MODFLOW with RCH package via the interface of the sub-basins in Xinanjiang model and the cells in MODFLOW, thus the integration of the two models is successfully realized. The application of the integrated model simulation in Zhangji, a groundwater-dominated area in Huai River Basin, China, demonstrates that the coupled Xinanjiang-MODFLOW simulation produces reasonable groundwater levels comparing to the observations. However the study also shows the need for further research in regarding to the improvement on Xinanjiang model in order to enable its direct integration with MODFLOW. Furthermore, the approach presented in this paper is limited to a unidirectional coupling of Xinanjiang and MODFLOW, which only accounts for groundwater level simulations, while the possible feedbacks from the surface water is neglected. More efforts are required to further facilitate the applicability and capability of the models integration.

原文链接：http://dx.doi.org/10.1061/(ASCE)HE.1943-5584.0000706