A warming climate is expected to have an impact on the magnitude and timing of river floods; however, no consistent large-scale climate change signal in observed flood magnitudes has been identified so far. We analyzed the timing of river floods in Europe over the past five decades, using a pan-European database from 4262 observational hydrometric stations, and found clear patterns of change in flood timing. Warmer temperatures have led to earlier spring snowmelt floods throughout northeastern Europe; delayed winter storms associated with polar warming have led to later winter floods around the North Sea and some sectors of the Mediterranean coast; and earlier soil moisture maxima have led to earlier winter floods in western Europe. Our results highlight the existence of a clear climate signal in flood observations at the continental scale.

Changing climate shifts timing of European floods / Bloschl, Gunter; Hall, Julia; Parajka, Juraj; Perdigão, Rui A. P.; Merz, Bruno; Arheimer, Berit; Aronica, Giuseppe T.; Bilibashi, Ardian; Bonacci, Ognjen; Borga, Marco; Äanjevac, Ivan; Castellarin, Attilio; Chirico, Giovanni B.; Claps, Pierluigi; Fiala, Kã¡roly; Frolova, Natalia; Gorbachova, Liudmyla; Gol, Ali; Hannaford, Jamie; Harrigan, Shaun; Kireeva, Maria; Kiss, Andrea; Kjeldsen, Thomas R.; Kohnovã¡, Silvia; Koskela, Jarkko J.; Ledvinka, Ondrej; Macdonald, Neil; Mavrova Guirguinova, Maria; Mediero, Luis; Merz, Ralf; Molnar, Peter; Montanari, Alberto; Murphy, Conor; Osuch, Marzena; Ovcharuk, Valeryia; Radevski, Ivan; Rogger, Magdalena; Salinas, Josà L.; Sauquet, Eric; Å raj, Mojca; Szolgay, Jan; Viglione, Alberto; Volpi, Elena; Wilson, Donna; Zaimi, Klodian; Åivkoviä, Nenad. - In: SCIENCE. - ISSN 0036-8075. - STAMPA. - 357:6351(2017), pp. 588-590. [10.1126/science.aan2506]

Changing climate shifts timing of European floods

CLAPS, Pierluigi;Viglione, Alberto;
2017

Abstract

A warming climate is expected to have an impact on the magnitude and timing of river floods; however, no consistent large-scale climate change signal in observed flood magnitudes has been identified so far. We analyzed the timing of river floods in Europe over the past five decades, using a pan-European database from 4262 observational hydrometric stations, and found clear patterns of change in flood timing. Warmer temperatures have led to earlier spring snowmelt floods throughout northeastern Europe; delayed winter storms associated with polar warming have led to later winter floods around the North Sea and some sectors of the Mediterranean coast; and earlier soil moisture maxima have led to earlier winter floods in western Europe. Our results highlight the existence of a clear climate signal in flood observations at the continental scale.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11583/2678765
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