Historical extreme events in coastal depositional environments

Pierre Pouzet (1)

1 LETG - Nantes - Littoral, Environnement, Télédétection, Géomatique

In the context of climate change, studying coastal risks involves the hazard’s historical fluctuations to understand the ocean-climatic parameters that guide its variability. The talk focuses on the detection of historical extreme events in coastal depositional environments. Surveys in western France highlight three stormy periods at approximately 1330-1360 AD, 1570-1620 AD and 1690-1720 AD. They are part of climate pejoration phases; storm activity appears to increase during positive phases of North Atlantic Oscillation, but no strict correlations can be established. A dendrochronological approach is suggested to extract recent storms impacting dune stands in coastal environments.

Domaines: Environnement et Société; Milieux et Changements globaux; Interfaces continentales, environnement; Océan, Atmosphère; Géographie

Pierre Pouzet. Historical extreme events in coastal depositional environments. International Geomorphology Week (IGW) 2022, Session Central & Western Europe (Austria, Belgium, France, Germany, Switzerland, The Netherlands), International Association of Geomorphologists (IAG), Mar 2022, Webinaire (siège de l’IAG : Bucharest), Romania. ⟨hal-03596540⟩