A QUASI-CONVERGENT, VERY-HIGH-RESOLUTION HYDRODYNAMIC SIMULATION OVER INDONESIAN WATERS

• Main Author: Nurfitriana, Layla
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/80401
• Institution: Institut Teknologi Bandung

The Maritime Continent of Indonesia has its own unique oceanographical interest. The water dynamics in this region are subject to numerous factors and play a crucial role in global ocean circulation. A hydrodynamic simulation using the Massachusetts Institute of Technology's general circulation model (MITgcm) have been conducted, at a resolution of 1/30o, to model the behavior of seawater in Indonesian waters. This study aims to obtain climatology data for ocean currents, temperature, and salinity while disregarding interannual variations and the tidal influences. The results show that the model is able to simulate the conditions of Indonesian waters fairly accurately. The influence of monsoons is well-modeled with correlation number up to 0.9 in many places, particularly in the Java Sea, Flores Sea, Banda Sea, Pacific Ocean, and Indian Ocean. The ITF (Indonesian Throughflow) dynamics also appear realistic in the Sulawesi Sea, Makassar Strait, Lombok Strait, Lifamatola Strait, and Ombai Strait. The simulation also captures some other features such as eddies and upwellings. Some eddies emerge in several locations such as the South China Sea, Sulawesi Sea, Sulu Sea, etc., during specific seasons. Upwelling phenomena occur in the south of Java Island and west of Sumatra Island during the southeast monsoon period.