NEMOS (Nearshore Modelling of Shoreline Change) Model for Abrasion Mitigation at the Northern Coast of Ambon Bay

Abstract

The Northern coast of Ambon Bay was suffered degradation in the form of abrasion. The research aims to analyse factors that causing abrasion and mitigation prevention. The research was done to measurement of NEMOS modeling use of GENESIS (Generalized Model for Simulating Shoreline) with three scenarios i.e existing conditions without protection, with groin series, and groin and seawall combination protection. Results obtained that sediment transport in the areas is 89 227 843 m³, it means that Northern coast had abrasion. NEMOS model with series of groins simulation will reduce to 60 259 673 m³. Simulation with groins and seawall, transport sedimen will reduced to 49 361 749 m³.