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Assessing climate change impacts, sea level rise and storm surge risk in port cities: a case study on Copenhagen

Hallegatte, Stéphane, Ranger, Nicola, Mestre, Olivier, Dumas, Patrice, Corfee-Morlat, Jan, Herweijer, Celine and Wood, Robert Muir (2011) Assessing climate change impacts, sea level rise and storm surge risk in port cities: a case study on Copenhagen. Climatic Change, 104 (1). pp. 113-137. ISSN 0165-0009

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Abstract

This study illustrates a methodology to assess the economic impacts of climate change at a city scale and benefits of adaptation, taking the case of sea level rise and storm surge risk in the city of Copenhagen, capital of Denmark. The approach is a simplified catastrophe risk assessment, to calculate the direct costs of storm surges under scenarios of sea level rise, coupled to an economic input-output (IO) model. The output is a risk assessment of the direct and indirect economic impacts of storm surge under climate change, including, for example, production and job losses and reconstruction duration, and the benefits of investment in upgraded sea defences. The simplified catastrophe risk assessment entails a statistical analysis of storm surge characteristics, geographical-information analysis of population and asset exposure combined with aggregated vulnerability information. For the city of Copenhagen, it is found that in absence of adaptation, sea level rise would significantly increase flood risks. Results call for the introduction of adaptation in long-term urban planning, as one part of a comprehensive strategy to manage the implications of climate change in the city. Mitigation policies can also aid adaptation by limiting the pace of future sea level rise.

Item Type: Article
Official URL: http://link.springer.com/journal/10584
Additional Information: © 2010 Springer Science+Business Media B.V.
Library of Congress subject classification: G Geography. Anthropology. Recreation > GE Environmental Sciences
Sets: Research centres and groups > Grantham Research Institute on Climate Change and the Environment
Rights: http://www.lse.ac.uk/library/usingTheLibrary/academicSupport/OA/depositYourResearch.aspx
Date Deposited: 22 Mar 2011 14:38
URL: http://eprints.lse.ac.uk/33457/

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