Analysis of flood vulnerability and assessment of the impacts in coastal zones of Bangladesh due to potential sea-level rise |
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| Authors: | Bhuiyan Md Jabed Abdul Naser Dutta Dushmanta |
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| Institution: | (1) School of Applied Sciences and Engineering, Monash University, Churchill, VIC, 3842, Australia;(2) CSIRO Land and Water, Black Mountain, ACT, Australia |
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| Abstract: | The 4th IPCC report highlights the increased vulnerability of the coastal areas from floods due to sea-level rise (SLR).
The existing coastal flood control structures in Bangladesh are not adequate to adapt these changes and new measures are urgently
necessary. It is important to determine the impacts of SLR on flooding to analyse the performance of the existing structures
and corresponding impact to plan for suitable adaptation and mitigation measures to reduce the impacts of floods on coastal
zone. The study aims to develop a comprehensive understanding of the possible effects of SLR on floods in the coastal zone
of Bangladesh. A hydrodynamic model, which is a combination of surface and river parts, was utilized for flood simulation.
The tool was applied under a range of future scenarios, and results indicate both spatial variability of risk and changes
in flood characteristics between now and under SLR. Estimated impact on population, infrastructure and transportation is also
exposed. These types of impact estimation would be of value to flood plain management authorities to minimize the socio-economic
impact. |
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