Two-way coupling of unsaturated-saturated flow by integrating the SWAT and MODFLOW models with application in an irrigation district in arid region of West China

作     者：Yi LUO Marios SOPHOCLEOUS 

作者机构：Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences Urumqi 830011 China Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 China Kansas Geological Survey University of Kansas Lawrence Kansas 66047 USA 

出 版 物：《Journal of Arid Land》 (干旱区科学（英文版）)

年 卷 期：2011年第3卷第3期

页      面：164-173页

核心收录：

学科分类：081803[工学-地质工程] 080704[工学-流体机械及工程] 08[工学] 0818[工学-地质资源与地质工程] 0807[工学-动力工程及工程热物理] 

基　　金：supported by the National Basic Research Program of China (2010CB951002) the Knowledge Innovation Project of Chinese Academy of Sciences (KZXC2-YW-BR-12) 

主　　题：SWAT MODFLOW SWATMOD coupled unsaturated-saturated flow irrigation canals groundwater recharge groundwater evaporation 

摘      要：This paper presents the realization of two-way coupling of the unsaturated-saturated flow interactions of the SWAT2000 and MODFLOW96 models on the basis of the integrated surface/groundwater model SWATMOD99, and its application in Hetao Irrigation District （HID）, Inner Mongolia, China. Major revisions and enhancements were made to the SWAT2000 and MODFLOW models for simulating the detailed hydrologic budget and coupled unsaturated and saturated interactions, and irrigation canal hydrology for the HID. The simulation results of seasonal groundwater recharge to and evaporate from the shallow groundwater, and the annual water budget over the district are presented and discussed. The results implied the necessity of two-way coupling of the unsaturated-saturated interactions when groundwater is shallow, and the feasibility of making comprehensive use of the information coming from both the surface water and groundwater models to make a more physically-based assessment of the coupled interactions.