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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

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Potential implications of sea-level rise for Belgium Lebbe, L.; Van Meir, N.; Viaene, P. (2008). Potential implications of sea-level rise for Belgium. J. Coast. Res. 24(2): 358-366. https://dx.doi.org/10.2112/07A-0009.1 In: Journal of Coastal Research. Coastal Education and Research Foundation: Fort Lauderdale. ISSN 0749-0208; e-ISSN 1551-5036, meer

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Beschikbaar in	Auteurs
VLIZ: Open access 144750 [ download pdf ] Waterbouwkundig Laboratorium: Open Repository 144159 [ download pdf ]

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Trefwoorden

Coastal plains Control > Flood control Implication Salt water intrusion Structures > Hydraulic structures > Coastal structures > Coast defences Temporal variations > Long-term changes > Sea level changes Vulnerability assessment ANE, België, Belgische kust [Marine Regions] Marien/Kust

Author keywords

Belgian coastal plain; saltwater intrusion; gravitational and artificial water drainage; coastal defences

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Auteurs		Top
Lebbe, L., meer Van Meir, N., meer Viaene, P., meer

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Abstract

The Belgian coastal plain and the Schelde estuary are threatened by sea-level rise. While of great economic importance with a threatened population of some 0.8 million (of a total population of 10 million), assessments of these risks are limited. This article describes the physical characteristics of the coast and undertakes a qualitative interpretation of its vulnerability. Low-lying polders are the most vulnerable to sea-level rise where a major problem is water drainage during rainy periods; their varying vulnerability to sea-level rise and increase in rain intensity is assessed, including the relationship between drainage levels and saltwater seepage. Freshwater lenses developed within the dunes are also vulnerable to sea-level rise, leading to threats to drinking water supplies from saltwater intrusion. Belgian coastal defence structures and their effectiveness are discussed. Historical sea-level rise during the past century, wave and wind data, and the evolution of erosion and accretion along the coast are interpreted. For Antwerpen, a harbour city on the river Schelde, the effects of sea-level rise are far from clear. Included here are historical data on changes in tidal amplitude during the 20th century. Future research needs should focus on the quantitative interpretation of data to understand the effect of sea-level rise on beach erosion, flood risk, and fresh and salt groundwater distribution. Furthermore, a thorough socio-economic study should be undertaken to assess the vulnerability of the Belgian coast and the Schelde estuary.

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