Abstract
This study is concerned with the development of storm surge model to predict water level accurately due to surge associated with a cyclone along the coast of Bangladesh. Considering the funnel shape of the Bay of Bengal, coastal bending and the existence of off-shore islands, a vertically integrated model in cylindrical polar coordinate system is developed using nested numerical scheme. A fine mesh scheme capable of incorporating coastal bending and offshore islands properly in the numerical scheme is nested into a coarse mesh scheme covering up to 15° N latitude of the Bay of Bengal. The developed model is used to estimate water levels at different coastal and island stations associated with a few storms that hit the coast of Bangladesh. The computed surge levels compared well with observed ones and predicted surge levels investigated with different approaches.
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Acknowledgments
The authors are grateful to Late Professor Dr. G. D. Roy, Department of Mathematics, Shahjalal University of Science & Technology, Sylhet 3114, Bangladesh, for his valuable suggestions and comments. We would like to thank the anonymous referee for comments and valuable suggestions that helped improve the manuscript.
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Rahman, M.M., Paul, G.C. & Hoque, A. Nested numerical scheme in a polar coordinate shallow water model for the coast of Bangladesh. J Coast Conserv 17, 37–47 (2013). https://doi.org/10.1007/s11852-012-0216-1
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DOI: https://doi.org/10.1007/s11852-012-0216-1