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Climate-change impact assessment for inlet-interrupted coastlines



Climate-change (CC)-driven sea-level rise (SLR) will result in coastline retreat due to landward movement of the coastal profile (that is, the Bruun effect). Coastline change adjacent to commonly found tidal inlets will be influenced not only by the Bruun effect, but also by SLR-driven basin infilling and CC-driven variations in rainfall/runoff. However, as a model that accounts for all of the above-mentioned processes has been lacking so far, most coastal CC impact studies until now have considered only the Bruun effect. Here, we present a scale-aggregated model capable of providing rapid assessments of coastline change adjacent to small inlet-estuary/lagoon systems due to the combined effect of CC-driven SLR and variations in rainfall/runoff. Model applications to four representative systems show that the Bruun effect represents only 25–50% of total potential coastline change, and underline the significance of coastline change due to SLR-driven basin infilling and CC-driven variations in rainfall/runoff.

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Figure 1: Schematic showing the main parameters governing coastline change due to CC-driven SLR and variations in rainfall/runoff.
Figure 2: Model predicted coastline change by 2100 at Tu Hien inlet, VietNam and Swan River, Western Australia.


  1. Aubrey, D. G. & Weishar, L. Hydrodynamics and Sediment Dynamics of Tidal Inlets (Springer, 1988).

    Google Scholar 

  2. Carter, R. W. G. & Woodroffe, C. D. Coastal Evolution: Late Quaternary Shoreline Morphodynamics (Cambridge Univ. Press, 1994).

    Google Scholar 

  3. Woodroffe, C. D. Coasts: Form, Process and Evolution (Cambridge Univ. Press, 2002).

    Book  Google Scholar 

  4. Davis, R. Jr & Fitzerald, D. M. Beaches and Coasts (Wiley, 2009).

    Google Scholar 

  5. Ward, L. G. & Ashley, G. M. Physical Processes and Sedimentology of Siliciclastic-dominated Lagoonal Systems (Elsevier, 1989).

    Google Scholar 

  6. Kjerfve, B. in Coastal Lagoon Process (ed. Kjerfve, B.) 1–7 (Elsevier, 1994).

    Book  Google Scholar 

  7. Nicholls, R. J. et al. in IPCC Climate Change 2007: Impacts, Adaptation and Vulnerability (eds Parry, M. L. et al.) 315–317 (Cambridge Univ. Press, 2007).

    Google Scholar 

  8. Ranasinghe, R. & Stive, M. J. F. Rising seas and retreating coastlines. Climatic Change 97, 465–468 (2009).

    Article  Google Scholar 

  9. Stive, M. J. F., Ranasinghe, R. & Cowell, P. in Handbook of Coastal and Ocean Engineering (ed. Kim, Y.) 1023–1038 (World Scientific, 2010).

    Google Scholar 

  10. Houghton, K. J, Vafeidis, A. T., Neumann, B. & Proelss, A. Maritime boundaries in a rising sea. Nature Geosci. 3, 813–186 (2010).

    Article  CAS  Google Scholar 

  11. Gratiot, N. et al. Significant contribution of the 18.6 year tidal cycle to regional coastal changes. Nature Geosci. 1, 169–172 (2008).

    Article  CAS  Google Scholar 

  12. Stive, M. J. F., Capobianco, M., Wang, Z. B., Ruol, P. & Buijsman, M. C. Proc. 8th Int. Biennial Conf. on Physics of Estuaries and Coastal Seas, The Hague 397–407 (A. A. Balkema, 1998).

    Google Scholar 

  13. Van Goor, M. A., Stive, M. J. F., Wang, Z. B. & Zitman, T. J. Impact of sea level rise on the morphological stability of tidal inlets. Marine Geol. 202, 211–227 (2003).

    Article  Google Scholar 

  14. Hinkel, J. DIVA: An iterative method for building modular integrated models. Adv. Geosci. 4, 45–50 (2005).

    Article  Google Scholar 

  15. Hinkel, J. & Klein, R. J. T. The DINAS-COAST project: Developing a tool for the dynamic and interactive assessment of coastal vulnerability. Glob. Environ. Change 19, 384–395 (2009).

    Article  Google Scholar 

  16. Vafeidis, A. T. et al. A new global coastal database for impact and vulnerability analysis to sea-level rise. J. Coast. Res. 24, 917–924 (2008).

    Article  Google Scholar 

  17. Dean, R.G. & Maurmeyer, E.M. in Handbook of Coastal Processes and Erosion Boca Raton (ed. Komar, P. D.) 151–166 (CRC, 1983).

    Google Scholar 

  18. FitzGerald, D. M., Fenster, M. S., Argow, B. A. & Buynevich, I. V. Coastal impacts due to sea-level rise. Annu. Rev. Earth Planet. Sci. 36, 601–647 (2008).

    Article  CAS  Google Scholar 

  19. Walton, T. L. & Adams, W. D. Proc. 15th Coastal Engineering Conf., Honolulu 1919–1937 (ASCE, 1976).

    Google Scholar 

  20. Davies, J. L. Geographical Variation in Coastal Development (Longman, 1980).

    Google Scholar 

  21. Davis, R. A. & Hayes, M. O. What is a wave dominated coast. Marine Geol. 60, 313–329 (1984).

    Article  Google Scholar 

  22. Ranasinghe, R., Pattiaratchi, C. & Masselink, G. A morphodynamic model to simulate the seasonal closure of tidal inlets. Coast. Eng. 37, 1–36 (1999).

    Article  Google Scholar 

  23. Bruun, P. Sea-level rise as a cause of shore erosion. J. Waterways Harbors Div. 88, 117–130 (1962).

    Google Scholar 

  24. Zhang, K., Douglas, B. & Leatherman, S. Global warming and coastal erosion. Climatic Change 64, 41–58 (2004).

    Article  Google Scholar 

  25. Stive, M. J. F. & Wang, Z. B. in Advances in Coastal Modelling (ed. Lakhan, C.) 367–392 (Elsevier, 2003).

    Book  Google Scholar 

  26. O’Brien, M. P. Estuary and tidal prisms related to entrance areas. Civil Eng. 1, 738–739 (1931).

    Google Scholar 

  27. Van der Wegen, M., Dastgheib, A. & Roelvink, J. Morphodynamic modelling of tidal channel evolution in comparison to empirical PA relationship. Coast. Eng. 57, 827–837 (2010).

    Article  Google Scholar 

  28. Wischmeier, W. & Smith, D. Agricultural Handbook No. 537 (US Government Printing Office, 1978).

    Google Scholar 

  29. Alley, R. B. et al. in Climate Change 2007: The Physical Science Basis (eds Solomon, S. et al.) 1–18 (Cambridge Univ. Press, 2007).

    Google Scholar 

  30. Schoof, C. Ice-sheet acceleration driven by melt supply variability. Nature 468, 803–806 (2010).

    Article  CAS  Google Scholar 

  31. Solomon, S. et al. in IPCC Climate Change 2007: The Physical Science Basis (eds Solomon, S. et al.) 19–92 (Cambridge Univ. Press, 2007).

    Google Scholar 

  32. IPCC Climate Change 2007: Synthesis Report (eds Pachauri, R. K. and Reisinger, A.) (IPCC, 2007).

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Z. B. Wang (Deltares/Delft University of Technology) is gratefully acknowledged for providing invaluable advice and guidance on the SLR-driven basin infilling process and the ASMITA model. R.R. would like to thank J. Bosboom (Delft University of Technology) and Ad van der Spek (Deltares) for early discussions pertaining to this research. This study was partly supported by the Deltares Coastal Maintenance Research Programme Beheer and Onderhoud Kust.

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R.R. and M.S. conceived the idea of the new model. R.R. developed and tested the model and wrote the manuscript. T.M.D. collated model input data and applied the model to field sites. S.U. provided all hydrological analysis for this study. D.R. provided strategic advice on coastal processes. All authors provided suggestions and comments on the manuscript.

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Correspondence to Roshanka Ranasinghe.

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The authors declare no competing financial interests.

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Ranasinghe, R., Duong, T., Uhlenbrook, S. et al. Climate-change impact assessment for inlet-interrupted coastlines. Nature Clim Change 3, 83–87 (2013).

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