Floods are the most prevalent natural disasters worldwide. Studies have shown that the frequency of flooding will increase in the future. Flood mitigation measures, which include structural as well as non-structural measures, can be selected effectively once the risk assessment for the area has been done accurately. In this paper, a review on flood risk assessment methods has been done considering flood risk as a function of flood hazard and vulnerability. This paper intends to analyse some of the most popular methods, including statistical methods, GIS and remote sensing, for assessing the flood hazard, flood vulnerability and flood risk, along with relevant case studies.
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