地表水文过程与地下水动力过程耦合模拟及应用

摘要

地表水和地下水是水循环系统不可缺少的部分,对相互作用与反馈的模拟计算有助于水资源精准评价.在非饱和带数值计算模型(UZF1)与模块化地下水动力模型(MODFLOW2005)耦合的基础上构建了一个地表水文过程与地下水动力过程耦合数值模拟模型,模型可以同时输出流域出口断面流量和地下水位的空间分布,有利地提高了模型的可靠性.将模型应用于资料条件较好的临涣集流域,从模拟结果分析来看,模型可以很好地模拟流域出口流量与地下水位空间动态变化过程,具有较高的模拟精度.%Surface water and groundwater are dispensable in water cycle system. Modeling interaction and feedback between surface water and groundwater can be beneficial to precision water resource assessment. Based on coupling unsaturated zone numerical model (UZF1) and modular groundwater dynamic model (MODFLOW2005), a numerical model coupling surface hydrology process and groundwater was built up, and applied to Linhuanji small basin of the Huaihe River. According to the modeling results, the discharge process of basin outlet can be modeled well by using the model, and groundwater spatial dynamic changing process can be modeled well too.