Reconstructing the Holocene Geomorphological Evolution of Estuaries in Response to Environmental and Anthropogenic Changes: The Cases of the Saâne and Risle Estuaries (Normandy, France)

id="offer-description" class="ecl-u-type-heading-2 ecl-u-mt-none ecl-u-mb-l">Offer Description Scientific background . Estuaries are dynamic geomorphological systems whose evolution results from complex interactions between sea-level variations, fluvial processes, hydroclimatic conditions, extreme events, sediment inputs from catchments, and anthropogenic transformations of coastal environments. Throughout the Holocene, these interactions have shaped complex morphosedimentary trajectories, characterised by phases of infilling, shifts in depositional environments, and the reorganisation of wetlands. More recently, the intensification of hydraulic engineering, wetland drainage, changes in agricultural practices, and coastal transformations have profoundly altered their functioning. The Estuarix project, led by UMR M2C at the University of Caen Normandy, in collaboration with UR LUSAC (University of Caen Normandy-Intechmer Cherbourg), UMR IDEES (University of Rouen Normandy), UMR EPOC (Bordeaux), UMR LPG (Angers), and the Technical University of Denmark in Riso and University of Copenhagen (Denmark), aims to characterise the morphosedimentary responses of estuaries from Normandy to environmental changes associated with the transition towards the Anthropocene. The project is based on the study of sedimentary archives from several estuaries in order to place recent transformations within a long-term historical perspective and distinguish the effects of climatic and hydroclimatic f