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Objective analysis of envelope curves for peak floods of European and Mediterranean flash floods

Amponsah, William and Marra, Francesco and Marchi, Lorenzo and Roux, Hélène and Braud, Isabelle and Borga, Marco Objective analysis of envelope curves for peak floods of European and Mediterranean flash floods. (2020) In: Climate change, hazards and adaptation options : handling the impacts of a changing climate. (Climate Change Management). Springer International Publishing, Cham, 267-276. ISBN 978-3-030-37425-9

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Official URL: https://doi.org/10.1007/978-3-030-37425-9_14

Abstract

Flash floods rank highly among natural disasters in terms of number of affected people and number of fatalities. This paper analyzes the scaling of the highest flash flood peaks at multiple spatial scales for different hydro-climatic regions in Europe and in the Mediterranean.The analysis is based on an integrated, high-resolution dataset of discharges concerning a number of high-intensity flash floods that occurred in these regions from 1991 to 2015. Quantile regression has permitted to define regional envelope curves of unit peak discharge versus drainage basin area, which summarize the current bound to extreme flash floods in a given region. Mean and standard error of the envelope curves’ parameters are objectively derived, permitting to explore the similarities in the slopes of the regional envelope curves. Results indicate that the exponent of the envelope curves shows almost negligible variations among climatic region whereas the multiplier depends on the climatic regions.

Item Type:Book Section
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Consiglio Nazionale delle Ricerche - CNR (ITALY)
Other partners > Hebrew University of Jerusalem (ISRAEL)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
French research institutions > Institut national de recherche pour l'agriculture, l'alimentation et l'environnement - INRAE (FRANCE)
Other partners > Kwame Nkrumah University of Science and Technology - KNUST (GHANA)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Università degli Studi di Padova (ITALY)
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Deposited On:25 Mar 2020 14:21

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