STUDY ON THE RISKS OF RISING SEA LEVELS AS A RESULT OF CLIMATE CHANGE IN BEKASI AND KARAWANG REGENCIES

• Main Author: Adli Irfani, Adin
• Format: Final Project
• Language: Indonesia
• Subjects: Geologi, hidrologi & meteorologi
• Online Access: https://digilib.itb.ac.id/gdl/view/74125
• Institution: Institut Teknologi Bandung

Bekasi and Karawang regencies are vulnerable to hazards as they directly face the Java Sea and are composed of easily erodible sediment deposits from rivers and coasts. This study aims to assess the hazards, vulnerabilities, and risks associated with inundation caused by sea level rise in Bekasi and Karawang regencies. Hazard projections were conducted from 2025 to 2045, using 4 scenarios to classify the inundation that occurs. Scenario 1 examines only the effects of tides and sea level rise (SLR), Scenario 2 examines if there is a La-Niña influence or storm surge, Scenario 3 examines if there are floods due to rainfall, and scenario 4 observes if all factors occur at the same time. Vulnerability identification is calculated based on natural, human and infrastructure elements. Furthermore, the risk is calculated from the multiplication between hazard and vulnerability. From the sea level rise hazard calculations carried out, Scenario 1 has the greatest probability of occurrence due to the influence of monthly tides and continuous SLRs. However, the highest increase was obtained from scenario 4 (174.42-184.72 cm). Scenario 4 sea level rise has the potential to cause inundation with the largest area of up to 60,164.79 hectares (18.88%) in scenario 4, affecting 9 districts in Bekasi regency and 13 districts in Karawang regency. Even so, scenario 4 has a small probability of occurrence. The vulnerability assessments indicate that Bekasi and Karawang regencies showing low to moderate vulnerability. The resulting risks are categorized as low, but there is potential impact on 3,204 buildings, 569.01 kilometers of roads across various categories, 102 educational/research facilities, 8 health facilities, and 1 steam power plant.