Surface Water Interaction Modelling Using Visual MODFLOW and GIS

PHYLARESDescription of the study area / ch.4__________________________________________________________________________________________24Figure 4. 43D of TopographyFigure 4. 5Slope map of the study area4.4 Hydrological settingSurface waterA 2.4 Km segment of the Aa river occurs in the study area. It flows through the study area fromthe North - Eastern to the South – Western ends. This river segment is gaining from groundwater in its upstream part and loosing in its downstream section (This is discussed in detail inchapter 8). The main Aa river has a total length of 36.7 Km with a drainage area of 23.7 km 2 .The average discharge is 1.74m 3 /s and average water depth is 1.15m and an average width of7.5m.______________________________________________________________________________________Groundwater – Surface water interaction modeling using visual MODFLOW and GIS