Flood Risk Assessment and Its Vulnerability in Coastal Villages, Central Halmahera District

Lessy, Mohamad Ridwan and Nagu, Nani and Wahiddin, Nurkholis (2018) Flood Risk Assessment and Its Vulnerability in Coastal Villages, Central Halmahera District. International Conference on Science and Technology.

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Abstract

Floods that occurred in Central Halmahera district had given a significant impact on environmental damage. This study aims to assess the risk level of flood and calculate vulnerability in study areas. The vulnerability will calculate based on social, economic and environmental aspects. Furthermore, the flood risk will be shown on risk map that refers to hazard index, and vulnerability index. The hazard index parameter was based on the high, the duration and the frequency of the flood. The vulnerability index parameter was based on the number of peoples, the sex ratio, vulnerability peoples, poverty ratio, number of facilities, and natural resources. Those parameters were analyzed by using guidelines for disaster risk assessment authorized by the National Disaster Management Agency. The result shows that the total vulnerability index found six villages at a high category and nine villages at the moderate category. Meanwhile, the risk map displays that almost all the village areas have a flood risk level varies from low to high risk. Low-risk areas are generally located in high altitudes. While high-risk areas are dominated on village areas

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