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| Henaff, Alain; Le Cornec, Erwan; Jabbar, Marie; Petre, Anne; Corfou, Jeremy; Le Drezen, Yann; Van Vliet-lanoe, B.. |
| Knowledge regarding the systemic vulnerability of coastal territories to erosion and flood has progressed during the last decades thanks to the consideration of hazards but also of other components such as the stakes, the management and the social representations of the coastal risks. However, in numerous cases the development and urbanization of coastal territories submitted to the coastal risks continues. It results in the increase of exposed populations as well as in the increase of the cost of exposed properties, increasing in return their vulnerability. So, in the objective to improve the management strategies and to strengthen the memory of the risk, the need to specify the characteristics of hazards remains important. In this sense, the intensity,... |
| Tipo: Text |
Palavras-chave: Risques côtiers; Aléa; Érosion côtière; Submersion marine; Caractérisation spatiale; Bretagne; Coastal risks; Hazard; Coastal erosion; Coastal flooding; Spatial characterization; Brittany. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00638/75006/75785.pdf |
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| Van Vliet-lanoe, Brigitte; Goslin, Jerome; Henaff, Alain; Hallegouet, Bernard; Delacourt, Christophe; Le Cornec, Erwan; Meurisse-fort, Murielle. |
| Holocene coastal dune formation under a continuously rising sea level (SL) is an abnormal response to increasing storm frequency. The aim of this work is to understand the coastal sedimentary budget and the present-day sand starvation, controlled by climate and man. Dating in Brittany shows that Aeolian deposition initiated from ca. 4000 cal BP, with the slowing down of the SL rise. Pre-historical dunes appeared here from ca. 3000 cal BP, without SL regression. After, further building phases recycled the same stock of sands. Historical dunes I developed from ca. 350 AD. Major storms between 900 and 1200 AD resulted in the construction of washover coastal ridges, the Historical dunes II. A part of the sand was evacuated offshore. From ca. 1350 AD, the... |
| Tipo: Text |
Palavras-chave: Dunes; Holocene; Climate; Sand starvation; Anthropic perturbation. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00591/70262/68321.pdf |
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