Coastal flooding in Denmark – future outlook

C. Sørensen, P. Knudsen, O. B. Andersen

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Abstract

Water loading from all directions due to river discharge, precipitation, groundwater and the sea state (i.e. mean and extreme water levels) need to be carefully considered when dealing with flooding hazards at the coast. Flooding hazard and risk mapping are major topics in low-lying coastal are- as before even considering the adverse effects of climate change and sea level rise (SLR). From an assessment of Danish sea extremes from historical evidence, tide gauge series, and space measurements, we discuss the current and future hazards, exposure, and vulnerability to flooding along the diverse Danish coastline in the transition between the Baltic Sea and the North Sea. The evaluation of the extreme statistics and their applicability in flooding hazard and risk management, and a presentation of the hazard and risk mapping performed through the implementation of the EU Floods Directive using the German XtremRisk approach, form the basis for projecting potential impacts of flooding due to climate change (SLR and increased storminess). Central to this impact assessment are also the evaluation of natural meteorological variability, robustness of the statistics, physical changes, local subsidence, land-use, protection measures a.o. that must be taken into account in order to evaluate current and future flooding hazards and management options. We provide examples from Danish case-studies underlining the necessity of including these factors and we outline an interdisciplinary approach to bring this knowledge together to enable a practice-oriented methodology that combines their effects and future sea extremes in hazard and risk mapping and climate change adaptation schemes in Denmark
Original languageEnglish
Title of host publicationProceedings of the International REKLIM conference. “Our Climate – Our Future, Regional perspectives on a global challenge”
EditorsPeter Lemke, Klaus Grosfeld, Renate Treffeisen, Marietta Weigelt
Number of pages1
Place of PublicationPotsdam
PublisherGeoUnion Alfred-Wegener-Stiftung
Publication date2014
Pages97
Article numberTP6-O-15
Publication statusPublished - 2014
EventInternational REKLIM Conference: "Our Climate – Our Future, Regional perspectives on a global challenge" - Berlin, Germany
Duration: 6 Oct 20149 Oct 2014
http://www.reklim.de/en/aktuelles-und-aktivitaeten/reklim-veranstaltungen/international-reklim-conference-2014-our-climate-our-future.html

Conference

ConferenceInternational REKLIM Conference
CountryGermany
CityBerlin
Period06/10/201409/10/2014
Internet address

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