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Wilhelm, B.; Arnaud, Fabien; Enters, D.; Allignol, F.; Legaz, Aurelie; Magand, Olivier; Revillon, Sidonie; Giguet-covex, C.; Malet, E.. |
Flood hazard is expected to increase in the context of global warming. However, long time-series of climate and gauge data at high-elevation are too sparse to assess reliably the rate of recurrence of such events in mountain areas. Here paleolimnological techniques were used to assess the evolution of frequency and magnitude of flash flood events in the North-western European Alps since the Little Ice Age (LIA). The aim was to document a possible effect of the post-19(th) century global warming on torrential floods frequency and magnitude. Altogether 56 flood deposits were detected from grain size and geochemical measurements performed on gravity cores taken in the proglacial Lake Blanc (2170 m a.s.l., Belledonne Massif, NW French Alps). The age model... |
Tipo: Text |
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Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00089/20011/17837.pdf |
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