Marine Debris Tracking from River Discharge base on Hydrodynamic Simulation on Jakarta Bay

Abstract

Marine debris pollution is one of biggest problem that occurs in coastal city in Indonesia without exception Jakarta. Those marine debris increase with the addition of the Jakarta population. The main source of marine debris came from 13 rivers that flow into Jakarta Bay. Estimated that around 487 tons/day plastic debris that mismanaged potentially flows into the rivers and ended into the Jakarta Bay. Tidal forcing and current mainly affect the hydrodynamic condition in Jakarta Bay that drive the marine debris spread out from river estuary. The marine debris movement follow the hydrodynamic pattern due to the nature of floating marine debris. The proposed Giant Sea Wall in Jakarta Bay also affected in hydrodynamic condition in Jakarta Bay. As a result, the movement pattern of the marine debris influenced due to complex hydrodynamic condition in Jakarta Bay.