Wave erosion and evolution of a new dunefield phase

The Younghusband Peninsula, South Australia, coastal barrier extends 190 km and is predominantly comprised of a mix of active, semi-stabilised and stabilised, relict transgressive and parabolic dunefields. Wave driven shoreline erosion has triggered the rapid development of a transgressive dunefield along the 42 Mile region of the peninsula. The highest regional erosion rates are greater than -2.0 m/year since 1988, and post 2008, the average rates show an increase from -2.2 m per yr to -3.3 m per yr in 2021. This coincides with a landward advance rate of greater than 10 m per yr from 2008 of the downwind margin of the new dunefield which has developed via cannabilization of the formerly vegetated transgressive dune system..
See: Hesp, P.A., DaSilva, M., Miot da Silva, G., Bruce, D., Keane, R., 2022. Review and direct evidence of transgressive aeolian sand sheet and dunefield initiation. Earth Surface Processes and Landforms. ESP-21-0330 R1.
DaSilva, M., Hesp, P.A., Miot da Silva, G., Bruce, D., 2024. Rapid Shoreline Erosion and the Evolution of a Transgressive Coastal Dunefield. Geomorphology.