Flood Vulnerability, Risk, and Susceptibility Assessment: Flood Risk Management

Flood Vulnerability, Risk, and Susceptibility Assessment: Flood Risk Management

Mohd Talha Anees (University of Malaya, Malaysia), Ahmad Farid Bin Abu Bakar (Universiti of Malaya, Malaysia), Lim Hwee San (Universiti Sains Malaysia, Malaysia), Khiruddin Abdullah (Universiti Sains Malaysia, Malaysia), Mohd Nawawi Mohd Nordin (Universiti Sains Malaysia, Malaysia), Nik Norulaini Nik Ab Rahman (Universiti Sains Malaysia, Malaysia), Muhammad Izzuddin Syakir Ishak (Universiti Sains Malaysia, Malaysia) and Mohd Omar Abdul Kadir (Universiti Sains Malaysia, Malaysia)
DOI: 10.4018/978-1-5225-9771-1.ch001
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Flood can be assessed through flood vulnerability, risk, and susceptibility analysis using remote sensing, geographic information system, and hydrological modelling. In this chapter, different stages, complexities, and processes of flood vulnerability, risk, and susceptibility assessment were discussed. The study reveals that flood vulnerability should be assessed based on four aspects: physical, social, economic, and environmental. Flood risk should be assessed by three stages: risk analysis, disaster relief, and preparedness, whereas flood susceptibility assessment involves three processes. Overall, it was found that the responsible factors vary as per the local conditions, which need to be carefully analyzed and selected. Furthermore, the role of remote sensing and geographic information system in flood risk management were found important especially in flood risk mapping and in the selection of responsible flooding factors.
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Flooding occurs from the combinations of different variety of sources whereas flood risk is the combination of probability of an event and its impact on exposed elements (Rooke, 2009). The management of flood risk is necessary to reduce the risk rather than avoiding it completely. The purpose of flood risk management is to reduce the human loss and economic cost at acceptable limit (Nasiri et al., 2016). Flood risk management include the following three stages (Schanze, 2006):

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