Human activities disturb lake-sediment records of past flood frequencies

William Rapuc (1) , Pierre Sabatier (1) , Fabien Arnaud (1)

1 EDYTEM - Environnements, Dynamiques et Territoires de Montagne

30th AnniversAry Flood frequencies as a proxy of past extreme precipitation events In the current context of global climate change, predicting the evolution of precipitation is particularly challenging: an increase of extreme events is expected globally due to the capacity of a warmer atmosphere to hold more water, although regional trends may differ (IPCC 2012). Assessing this requires the acquisition of long-term hydrological datasets (Wilhelm et al. 2019). As flood occurrence and magnitude are linked to precipitation-regime fluctuation through time, the establishment of regional flood chronicles from natural archives could be a key to evaluate the evolution of precipitation regimes on emerged land (PAGES Floods Working Group 2017).

Domaines: Sciences de l'environnement; Milieux et Changements globaux

William Rapuc, Pierre Sabatier, Fabien Arnaud. Human activities disturb lake-sediment records of past flood frequencies. Past Global Changes Magazine, 2021, 29 (1), pp.42-43. ⟨10.22498/pages.29.1.42⟩. ⟨hal-03340533⟩