Effect of Stream River and Tidal on the Suspended Sediment Concentration of Kuala Langsa Estuary, Aceh, Indonesia

Kuala Langsa estuary is a semi-closed zone where there an exchange of two water masses between river and tidal the Malacca Strait. The those occurs as physical result fluctuating estuaries. This caused Suspended Sediment Concentration (SSC) continue to increase final distribution point for sediment brought from upstream by erosion in River. contributes silting estuary. KRI dr. Soeharso Hospital be unable dock at Port during 66th Surya Bhaskara Jaya Navy Operations 2017. It’s necessary study conditions, which include bathymetry, currents, temperature, salinity, concentrations floating that occur tides discharges. research used quantitative qualitative exploratory methods, analyzed direct correlation measurement results, roughness coeficient, transport rate relevant empirical equations (Duboy's, Einstein's, Rottner, Chang, Simons, Richardson, Lane Kalinske aquations). found 16 km with semidiurnal type. In estuary, it was discovered highest mouth 10.700.739,71 ton/day-1 model Muara has good results measurements-model indicate value CC width = 0.959 tide CC= 0.421, provides initial information conducting hydrodynamic morphological models