Model Hidrodinamika Pasang Surut di Perairan Kepulauan Bangka Belitung

Abstract

Tidal dynamics in Bangka Belitung Archipelago waters is influenced by the tidal from South China Sea from the north, the Java Sea from the south, and local processes due to shallow water and narrow strait. To understand the tidal dynamics in Bangka Belitung waters, a numerical model has been simulated with 8 major tidal constituents (M2, S2, K1, O1, N2, P1, K2, and Q1) for a period of 14 days (4 to 17 January 2009). The simulation was carried out using DHI's MIKE 21 Flow FM software, a 2-dimension flexible mesh hydrodynamic model. The model boundary conditions were obtained from the Oregon State University Tidal Inversion Software (OTIS), also known as the Tidal Model Driver (TMD). The model has been validated against measurement in six stations of BOOST Center (Babel Ocean Observation and Technologies). The simulation results show that the tidal dynamic in Bangka Belitung waters is dominated by diurnal tidal constituent, with K1 is the largest tidal constituent then followed by O1. The result also indicates that the tidal dynamic in Bangka Belitung waters is dominated influenced by the diurnal constituents K1 coming from the South China Sea dispersed towards the Karimata Strait and Bangka Belitung water.