ANALYSIS OF SEA LEVEL INCREMENT IN INDONESIA DUE TO HAIYAN STORM SURGE IN 2013 USING COUPLING SWAN - ADCIRC MODEL

• Main Author: NURBANDIKA (NIM : 12911016), NAVISA
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/23446
• Institution: Institut Teknologi Bandung

Super Typhoon Haiyan occurred on November 3rd, 2013 started in Western Pacific Ocean to South China Sea. Referred to Saffir-Simpson Hurricane Wind Scale, Super Typhoon Haiyan was one of the strongest tropical cyclones ever recorded, classified in category - 5 which the most destructive scale for the area that have been passed. The resulting force from typhoon can produce swell and storm surge towards Indonesia Sea. The simulation of wave propagation and sea level increment have been conducted considering that phenomena by using coupling of wave and hydrodynamic models SWAN – ADCIRC. Surge elevation and significant wave height are the kind of parameter that resulted from simulation. <br /> <br /> <br /> The result from coupled model showed the conformity in increment pattern of elevation storm surge observation. The maximum increment of elevation surge on November 7th, 2013 reach up to 10.75 cm in Biak, 19.53 cm in Manokwari, and 18.84 cm in Sorong. On November 9th, 2013 the maximum increment of elevation surge reach up to 14.14 cm in Tahuna, 11.32 cm in Manado, 10.87 cm in Bitung, and 19.37 cm in Toli - Toli. The result of maximum significant wave height based on coupled model showed an increasing on November 7th, 2013 in Biak, Manokwari and Sorong with the wave height up to 1.87 m, 2.21 m, and 2.28 m. Later it occurred in Tahuna and Bitung on November 8th with the wave height up to 2.06 m and 2.57 m and on November 9th,2013 arrived in Toli - toli with the wave height up to 1.08 m.