Title: Multi-model projections of river flood risk in Europe under global warming
Citation: CLIMATE vol. 6 no. 1 p. 6
Publisher: MDPI AG
Publication Year: 2018
JRC N°: JRC108760
ISSN: 2225-1154
URI: http://www.mdpi.com/2225-1154/6/1/6
DOI: 10.3390/cli6010006
Type: Articles in periodicals and books
Abstract: Knowledge on the additional costs of natural disasters under climate change is key information for planning adaptation and mitigation strategies of future climate policies. Impact models for large scale flood risk assessment have made leaps forward in the past few years, thanks to the increased availability of high resolution climate projections and of detailed information on local exposure and vulnerability to river floods. Yet, state-of-the-art flood impact models rely on a number of input data and modeling steps that can substantially influence their results. This work compares estimates of river flood risk in Europe from three recent studies, assuming global warming scenarios of 1.5, 2 and 3 degrees from pre-industrial levels. The assessment is based on comparing ensemble projections of expected damage and population affected at country level. Differences and common points between the three works are shown, to point out main sources of uncertainty, strengths and limitations. In addition the multi-model comparison helps identify regions with the largest agreement on specific changes in flood risk. Results show that global warming is linked to substantial increase in flood risk over most countries in Central and Western Europe at all warming levels. In Eastern Europe the average change in flood risk is smaller and the multi-model agreement is generally poorer.
JRC Directorate:Space, Security and Migration

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