RISK ASSESMENT OF OIL SPILL ALONG THE SHIPPING ROUTES IN THE JAVA SEA Muhammad Raihan, Aditya R. Kartadikaria, Dr. Eng.
Institut Teknologi Bandung
Abstract
The Java Sea is one of areas in Indonesia with bustling maritime activities. All activities in these waters carry risks that could pollute the environment. One of pollution risks is the occurrence of oil spills resulting from ship accidents along the shipping routes. Risk assessment of oil spill incidents in the Java Sea region needs to be conducted to minimize losses in the event of oil spills caused by accidents along the shipping routes. This study employs two methods: modeling and geographic information systems (GIS). Geographic information systems are used to determine the location of oil spills and visualize the results of the modeling for analytical purposes. The simulation is performed using the Oil Spill Trajectory Model (OSTM) to predict the movement of oil spills. The simulations are conducted for fifteen days each month in three release point categories based on the distance of the oil spill release points from the coastline. Category I covers release points within 50 km from the coastline, category II ranges from 50 to 100 km, and category III covers release points more than 100 km from the coastline. The oil spill dispersion pattern follows the monsoon wind patterns, tending to spread eastward during the west monsoon season and westward during the east monsoon season. The farthest spread occurs during the peak of the east and west monsoon seasons. The highest risk of oil spills is found in category I release points. The risk decreases as the distance increases in category II and category III release points.
