Assessment of Coastal Erosion Hazard in View of Climate Change: Case Study Camposoto Beach, Spain

Abstract Coastal risks, potentially amplified by climate change, are highly uncertain and can impact all coastal environments. Effective coastal risk management demands simple, adaptable methods that capture nearly accurate coastal dynamics, allowing for continuous improvement and integration of new data and approaches. This research validated a regional method for assessing climate change related coastal erosion hazards, by applying high-resolution data and a combination of simple process-based transfer functions at Camposoto Beach (Spain). Higher erosion hazard levels agree with dune erosion areas and historical erosion trends assessed in previous studies in the area. Test cases considering sea-level rise indicate higher coastal erosion hazards in areas with narrow berms and low dune profiles, aligning with current erosion rates depicted by studies of different methodology. The proposed method provides a more detailed perspective on potential hotspots compared to similar regional studies and offers better comparability among different sections and climate change scenarios.