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Assessing the storm vulnerability of the Belgian coastline
Reyns, J.; Vanpoucke, Ph.; Verwaest, T.; Van der Biest, K.; Vanderkimpen, P.; Peeters, P.; Vanneuville, W. (2008). Assessing the storm vulnerability of the Belgian coastline, in: Mees, J. et al. (Ed.) (2008). VLIZ Young Scientists' Day, Brugge, Belgium, 29 February 2008: book of abstracts. VLIZ Special Publication, 40: pp. 63
In: Mees, J.; Seys, J. (Ed.) (2008). VLIZ Young Scientists' Day, Brugge, Belgium, 29 February 2008: book of abstracts. VLIZ Special Publication, 40. Vlaams Instituut voor de Zee (VLIZ): Oostende. ix, 96 pp., more
In: VLIZ Special Publication. Vlaams Instituut voor de Zee (VLIZ): Oostende. ISSN 1377-0950, more

Also published as
  • Reyns, J.; Vanpoucke, Ph.; Verwaest, T.; Van der Biest, K.; Vanderkimpen, P.; Peeters, P.; Vanneuville, W. (2008). Assessing the storm vulnerability of the Belgian coastline, in: (2008). NCK-Days 2008: book of abstracts, March, 2008. pp. 49, more

Available in Authors 
Document types: Conference paper; Summary

Keywords
    Analysis; Beach erosion; Climatic changes; Coastlines; Damage; Dunes; Erosion; Flooding; GIS; Methodology; Modelling; Overtopping; Risks; Sea level changes; Storm surges; Wave forces; ANE, Belgium, Belgian Coast [Marine Regions]; Marine

Authors  Top 
  • Reyns, J., more
  • Vanpoucke, Ph., more
  • Verwaest, T., more
  • Van der Biest, K., more
  • Vanderkimpen, P., more
  • Peeters, P., more
  • Vanneuville, W., more

Abstract
    Climate change is likely to induce increased sea level and storm frequency. As such, assessing the strength of the Belgian coastal defence infrastructure against natural hazards is of primordial importance to reduce inundation consequences to properties and nature. This study presents an integrated methodology to estimate damage risks from a hypothetical storm with a surge level of +8m TAW and a duration of 45 hours along the entire coastline. After translation of deep water hydrometeorological conditions to the nearshore, several failure modes of the defence infrastructure are modelled: beach and dune erasion, collapse of dikes due to wave impact and overtopping, and subsequent breach forming and flooding of the low-lying coastal plain. Attention was paid to the various model uncertainties. Damage of infrastructure, properties and human casualties are calculated using a raster-based GIS model. Multiplication of the results with a rate factor based on prognoses of the evolution of socio-economic parameters allows projection of the results to 2050. All this, in combination with a social cost benefit analysis, will provide a tool for supporting coastal zone management in Belgium in a quantitative way.

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