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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... |
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| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00089/20011/17837.pdf |
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| Zhu, J.; Luecke, A.; Wissel, H.; Mayr, C.; Enters, D.; Kim, K. Ja; Ohlendorf, C.; Schaebitz, F.; Zolitschka, B.. |
| The Southern Hemisphere Westerlies (SHW) play a crucial role in large-scale ocean circulation and global carbon cycling. Accordingly, the reconstruction of how the latitudinal position and intensity of the SHW belt changed during the last glacial termination is essential for understanding global climatic fluctuations. The southernmost part of the South American continent is the only continental mass intersecting a large part of the SHW belt. However, due to the scarcity of suitable palaeoclimate archives continuous proxy records back to the last glacial are rare in southern Patagonia. Here, we show an oxygen isotope record from cellulose and purified bulk organic matter of submerged aquatic moss shoots from Laguna Potrok Aike (52 degrees S, 70 degrees W),... |
| Tipo: Text |
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| Ano: 2014 |
URL: https://archimer.ifremer.fr/doc/00291/40205/39227.pdf |
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