Improving Adaptive Capacity for Integrated Coastal Safety Management

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Samenvatting

Belgian coastline is of 67 km long and situated in the southern part of the North Sea. With climate change and sea level rise, protecting the coastal region against storm surges and flooding is a top priority. This paper evaluates the employed coastal risk and vulnerability assessment framework and the implemented adaptive tools. Coastal protection includes measures through hard engineering with grey infrastructures such as storm return walls and storm surge barriers; and soft engineering including sand nourishments and dune strengthening. Beach nourishments frequently take place along the weak sections of the Belgian coast for the purpose of coastal safety. Although less popular, shoreface nourishments are carried out in order to provide more sand volume in the sub-aqueous. Monitoring of the pilot nourishment near Ostende took place from 2013 to 2018 in order to assess the morphological response to a combined beach and shoreface nourishment versus to a beach nourishment (at only one site on the beach). Results showed that the coastline advanced seaward immediately after the nourishments and maintained a similar position after three years. The dominant process for the beach evolution was the cross-shore transport immediately after the execution, but alongshore transport became dominant in the medium and long term. Also, shoreface nourishment has revealed to be an appropriate method to realize the growth of the sandy sea defence with sea level rise. It is evident that a better design of the coastal strategy requires timely assessment for improving adaptive capacity for integrated coastal safety management.

Originele taal-2English
TitelInternational Association for Hydro-Environment Engineering and Research
RedacteurenHelmut Habersack, Michael Tritthart, Lisa Waldenberger
UitgeverijIAHR
Pagina's1044-1048
Aantal pagina's5
DOI's
StatusPublished - 2023

Publicatie series

NaamInternational Association for Hydro-Environment Engineering and Research

Bibliografische nota

Publisher Copyright:
© 2023 IAHR - International Association for Hydro-Environment Engineering and Research.

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