简易地下水模型EasyGWM在南水北调中线受水区的应用

Application of Easy Groundwater Model in the Reception Area of the Middle Route of South-to-North Water Diversion Project in China

为对南水北调中线受水区(下简称中线受水区)的地下水资源进行有效模拟,研制简易地下水模型EasyGWM(Easy Groundwater Model),并以2002年-2003年的区域地下水动态资料进行模型验证,对EasyGWM模型和MODFLOW在中线受水区的模拟结果的对比分析表明,当研究时空尺度较大时,相比建模复杂、资料难于获取且运算耗时的MODFLOW模型,EasyGWM模型不仅能取得与实际资料相适应的模拟精度,还能节省模型建模及运算时间。

For high efficiency of simulation of groundwater flow in the reception area of the Middle Route of South-to-North Water Diversion Project in China, a model named Easy Groundwater Model （EasyGWM）, is developed for application. Taking two years （2002-2003） as a validation period, the simulation effect of EasyGWM is compared with that of MODFLOW, a model that is famous for its high precision while is time-consuming and complex. Results show that, for large region and long term simulation, EasyGWM can obtain as precise results as MODFLOW while save time in building models and computation.