coastal engineering and management

In this study will be an assessment of the process of sedimentation that result from the interaction of waves, coastal currents, wind, contour Losari beach in Makassar South Sulawesi Province method approach Surface Water Modeling System (SMS ver. 8.0) and the overlay satellite image landsat 7-ETM year 1996 and 2002on Geogrhapic Information System (SIG). Suspended sediment spreding and seabed sediment change analysed by SMS 8.0.The first stage of the analysis had been done by set a limit on the boundary/training area are: longitude coordinates: 1190 21’ – 1190 25’ East and Latitude: 50 7’ – 50 13’ South. The boundary undergoes some adjustment at the both methods that used in this research. Suspended sediment samples taking began from around the delta until the JeneberangRiver (LS1 to LS7). The sediment measuring result was compared by suspended sediment from running result of module SMS (SED2-WES) and overlay analysis result of the image Landsat 7-ETM (1996 and 2002).The supreme current velocity had happened at the LS1(0.079 m/s)and LS2(0.001 m/s). Beside of those,LS4 and LS6 was between 0.00 - 0.03 m/s and thenLS3, LS5 and LS7 was between 0.00 – 0.019 m/s. The suspended sediment concentrationat each site observation had been increase with difference fluctuation according to the tides data. The sediment concentration accumulation until the end of the time step (72) at station LS1 = 8.63 ppm, LS2 = 6.34 ppm, LS3 = 3.28 ppm, LS4 = 3.79 ppm, LS5 = 1.69 ppm, LS6 = 0.94 ppm and LS7 = 0.60 ppm.Moreover the sediment classification resulted measurement result at each class could be getting in: LS1=14.30; LS2=17.00; LS3=3.65; LS4=11.42; LS5=9.12; LS6=5.54 and LS7=6.32. Whereas the result of analysis on landsat image overlay divided up into five classes for image year 1996 (class 1= 0, class 2= 0 – 4.74 ppm; class 3= 4.74-11.85 ppm; class 4= 11.85-12.91; class 5= 12.91-15.35; class 6= 15.35-22.46) and year 2002 (class 1= 0, class 2= 0 – 13.65 ppm; class 3= 13.65-13.98 ppm; class 4= 13.98-14.73; class 5= 14.73-15.59; and class 6= 15.59-18.84 ppm).