Sustainable Management of the Salalah Costal Aquifer in Oman Using an Integrated Approach

The MODFLOW computer code and the MT3DMS computer code were used to develop a numerical flow model. The model used to provide analysis of freshwater flow and saltwater intrusion Salalah coastal aquifer. The underflow was derived from the developed numerical groundwater flow modelling and calibration on hydraulic heads of 1992. A model-calculated water budget showed that 51 million cubic metres per year of freshwater recharge the Salalah plain aquifer system, of which 98% of this water is underflow originating from Jabal AlQara, and the remaining 2% is the recharge on the plain.