Zonasi Bencana Abrasi Pantai Sappoang Kabupaten Polewali Mandar

This research uses a formula approach. In has several variables. The variables in this are tidal, ocean current speed and direction, wave height period, type of geological structure the coast sediment grain size materials, slope beach coastline wind direction. number samples or observation points at 27, with interval distance every point is 200 m. results were analyzed waves determinants abrasion sedimentation. Sappoang Beach one marine landforms more specifically known as land form bar (deposition sand along coast). Conditions located around mouth river to physical differences that basin area (central coast), where force waves, flow velocity beaches have greater value when compared coastal areas near river. showed there three conditions different currently conducted (the west wind), like sedimentation area, balanced abraded. Abraded zone dominant than stable. significant because time measurement, blowing wind, given quantity measuring higher coast, so increasing