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Adaptation to flood risk – results of international paired flood event studies
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, LUVAL.
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2017 (English)In: Earth's Future, ISSN 1384-5160, E-ISSN 2328-4277Article in journal (Refereed) Accepted
Abstract [en]

As flood impacts are increasing in large parts of the world, understanding the primary drivers of changes in risk is essential for effective adaptation. To gain more knowledge on the basis of empirical case studies, we analyze eight paired floods, i.e. consecutive flood events that occurred in the same region, with the second flood causing significantly lower damage. These success stories of risk reduction were selected across different socio-economic and hydro-climatic contexts. The potential of societies to adapt is uncovered by describing triggered societal changes, as well as formal measures and spontaneous processes that reduced flood risk. This novel approach has the potential to build the basis for an international data collection and analysis effort to better understand and attribute changes in risk due to hydrological extremes in the framework of the IAHSs Panta Rhei initiative. Across all case studies, we find that lower damage caused by the second event was mainly due to significant reductions in vulnerability, e.g. via raised risk awareness, preparedness and improvements of organizational emergency management. Thus, vulnerability reduction plays an essential role for successful adaptation. Our work shows that there is a high potential to adapt, but there remains the challenge to stimulate measures that reduce vulnerability and risk in periods in which extreme events do not occur.

Place, publisher, year, edition, pages
2017.
Keyword [en]
flooding, vulnerability, adaptation, global environmental change
National Category
Oceanography, Hydrology, Water Resources
Identifiers
URN: urn:nbn:se:uu:diva-329388DOI: 10.1002/2017EF000606OAI: oai:DiVA.org:uu-329388DiVA: diva2:1141249
Projects
Panta Rhei Working Group “Changes in flood risk”
Available from: 2017-09-14 Created: 2017-09-14 Last updated: 2017-09-14

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