A UNIFIED FRAMEWORK OF MULTI-HAZARD FLOOD RISK MAPPING: INTEGRATING FLOOD HAZARD AND VULNERABILITY DIMENSIONS OVER A COASTAL CATCHMENT IN INDIA

Abstract

In recent times, the escalating frequency and intensity of flooding events, fueled by global warming and climate change, have placed an unprecedented strain on decision-makers and stakeholders worldwide. Among the various types of flooding, coastal flooding stands out as one of the most destructive and challenging phenomena to address. The complexity of coastal flood risk lies in the interplay of multiple flood drivers, each distinct in origin and mechanism. Coastal flooding typically arises from the combined impacts of extreme rainfall, storm surges, and riverine discharge. While these factors can individually cause significant damage, their concurrent occurrence often results in compound flooding events, intensifying the scale and severity of inundation. Deciphering the intricacies of coastal flooding presents a formidable challenge due to the dynamic and overlapping nature of these drivers. Such compound events disproportionately affect global flooding hotspots, highlighting the urgent need to bolster coastal resilience. Addressing these risks requires a forward-thinking and strategic approach to flood management, integrating proactive measures and adaptive strategies. Strengthening coastal resilience is not merely a response to current challenges but a critical investment in the future aimed at protecting vulnerable coastal communities and mitigating the cascading impacts of such disasters.