Interaction of groundwater and surface water in Mahi_Dasht Aquifer

A. Abdeh-Kolahchi1 (Kolahchi@yahoo.com) and Karimi2
1Assistanat Professor, Soil Conservation and Watershed Management Research Institute (SCWMRI), Tehran, Iran
2 M.Sc student at Tehran Azad University, Iran

The Mahi-Dasht aquifer in Kermanshah province located in west part of Iran.  Water resources planning, development and management of Mahi-Dasht area has become inerasably complex as many factors, such as population growth and increasing demand on existing water supplies.  To overcome the water shortage and increase water supply during critical demand period, interaction of surface water and groundwater has been investigated.  For these reason two models, with and without interaction of groundwater and surface water were developed. The results from the interaction of groundwater and surface water have a good agreement with observation data.  The error reduces from 20% to 3% by using the interaction model.  Also the simulation results from integrated model shows that using 10% of surface water as artificial recharge could increase the water supply during critical demand periods [summer and fall] in Mahi-Dasht aquifer.

Keyword: Interaction of Groundwater and Surface water, Modflow, Artificial Recharge