Quantifying historic erosion rates along Victoria’s Coastline Teresa M. Konlechner1, David M. Kennedy1, Daniel Ierodiaconou2 1School of Geography, National Centre for Coasts and Climate, The University of Melbourne, Parkville, VIC 3010, Australia (
[email protected]) 2School of Life and Environmental Sciences, Deakin University, Warrnambool, VIC, Australia Introduction Aims and Methods Climate change may accelerate erosion of many Australian coastlines. Although Australia has - Quantify decadal beach change (2007- strong science capability to assess the risks associated with sea-level rise, waves, and storm 2019). Using 2007 LiDAR survey dataset surge, there remains significant uncertainty around the amount and rate of coastal erosion for the Victorian coast as the benchmark under climate change, particularly where changes from depositional to erosional shorelines for change, surveys will be repeated using RTK GPS system and UAV/Drone surveys are likely to occur, and at scales relevant to management (i.e., smaller than coastal to quantify the degree of shoreline compartment scales). movement over the past decade. - Quantify centennial beach change (1940- We need: (i) a greater understanding of historical coastal erosion over decadal time scales 2015). Aerial photography and published and the influence of coastal vegetation and human infrastructure on this process, and (ii) literature to determine the precise nature improved linkages between models of coastal erosion and hazards under climate change, to of coastal change since