Modeling artificial groundwater recharge by floodwater spreading: estimation, effect and enhancement
Summary, in English
Estimation of recharged water is a crucial subject in aquifer management. A variety of techniques are available to quantify recharge. However, choosing appropriate techniques is often difficult (Scanlon et al., 2002). In order to estimate the recharged water for a 14-year period, a 3D conceptual model was built to be representative of the study area and efficient estimation of hydraulic parameters. Groundwater flow was simulated and calibrated by MODFLOW-2000 based on monthly observed data during both steady and transient periods for the years between 1993 and 2007. The aquifer parameters including hydraulic conductivities, specific yield, and recharge rate were determined through calibration of model during steady state, unsteady state with no recharge, and unsteady state with recharge cases, respectively. The recharge amount varied from a few hundred thousand cubic meters per month during drought periods to about 4.5 million cubic meters per month during rainy periods.
This study aimed at assessing the effects of different strategies to improve the efficiency of the FWS using the above groundwater model. The study focused on spatial distribution of the system, change in the hydraulic structures and hydraulic parameters of the aquifer, and application of different abstraction scenarios in order to increase the efficiency and management of the system. The results will be used to better manage existing and plan new FWS projects in order to achieve sustainable water resources using an economical and efficient AR system in arid areas.
- Division of Water Resources Engineering
- Centre for Advanced Middle Eastern Studies
- MECW: The Middle East in the Contemporary World
- Other Social Sciences
- Water Engineering
- artificial recharge
- groundwater modeling
- recharge estimate
Hydrogeology of Arid Environments
2012-03-14 - 2012-03-17