Towards a physics-based parameterization of pan-Arctic shoreline erosion

• Main Authors: Rolph, Rebecca, Overduin, Pier Paul, Lantuit, Hugues, Ravens, Thomas, Langer, Moritz
• Format: Conference Object
• Language: unknown
• Published: 2020
• Subjects: Arctic; Sea ice
• Online Access: https://epic.awi.de/id/eprint/53527/; https://hdl.handle.net/10013/epic.4c512973-1b18-4bca-a8a8-25a63eaacc9b

Arctic coastlines are increasingly vulnerable to erosion due to warmer temperatures destabilizing frozen cliffs, reduced protection of sea ice cover and bigger waves, especially as freeze-up becomes delayed further into the fall storm season. We have coupled a bathystrophic storm surge model to a simple numerical model of erosion of a partially frozen cliff and beach. This is a first step towards parameterization of Arctic shoreline erosion for larger-scale models that are not able to resolve the fine spatial scale (0 - 40m) needed to capture shoreline erosion rates from years to decades.