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Flood Risk Estimation and Mapping: Present Status and Future Challenges

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Earth Systems Protection and Sustainability

Abstract

Several regions of the globe are projected to experience elevated risks from flooding attributable to concomitant climate change and alterations in socioeconomic dynamics. These impacts present major challenges to comprehensively quantify flood risk, which will facilitate building flood mitigation infrastructures, improve land use/urban planning, and assist the prioritization of emergency response strategies. Flood risk is built on two major components, namely, hazard and vulnerability. Most research conducted so far on vulnerability is limited to themes, such as physical, economic, and infrastructure vulnerabilities, and has frivolously excluded social vulnerability. Such works are solely based on a technocratic perspective rather than from a socio-technocrat’s perspective. It is a fact that social vulnerability is less amenable to quantification because it is linked to the resilience of an individual, a community, or a society, which is acquired as a result of their perception, attitude, and coping capacity. The procedures for flood risk mapping are data-intensive, posing a difficulty in generating maps for middle- and low-income nations. Essentially, flood risk mapping is truly multidisciplinary in nature and requires inputs from engineers, social scientists, policymakers, and the general public.

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Acknowledgments

This work is supported by ISRO-IIT(B)-Space Technology Cell (STC) [Project reference numbers: RD/0114-ISROC00-013 (14ISROC009) and RD/0119-ISROC00-001] and partially supported by the Department of Science and Technology (SPLICE-Climate Change Programme), Government of India (Project reference number DST/CCP/CoE/140/2018, Grant Number: 00000000000010013072 (UC ID: 18192442)). The support for computational resources was provided by IIT Bombay.

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Correspondence to Subhankar Karmakar .

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Mohanty, M.P., Karmakar, S. (2022). Flood Risk Estimation and Mapping: Present Status and Future Challenges. In: Furze, J.N., Eslamian, S., Raafat, S.M., Swing, K. (eds) Earth Systems Protection and Sustainability. Springer, Cham. https://doi.org/10.1007/978-3-030-98584-4_7

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