Understanding Interactions between Shoreline Changes and Reef Outer Slope Morphometry on Takapoto Atoll (French Polynesia)

ABSTRACT Collin, A.; Duvat, V.; Pillet, V.; Salvat, B., and James, D., 2018. Understanding Interactions between Shoreline Changes and Reef Outer Slope Morphometry on Takapoto Atoll (French Polynesia). In: Shim, J.-S.; Chun, I., and Lim, H.S. (eds.), Proceedings from the International Coastal Symposium (ICS) 2018 (Busan, Republic of Korea). Journal of Coastal Research, Special Issue No. 85, pp. 496–500. Coconut Creek (Florida), ISSN 0749-0208. Low-lying atoll reef islands host populations who are highly exposed to increasing ocean-related pressures resulting from accelerated sea-level rise, ocean warming and acidification. Since 2010, changes in the position of atoll reef island shoreline were estimated on more than 400 Pacific islands using multi-date image analysis. These studies have emphasized island persistence and highlighted the major role of local controls, i.e., human activities and tropical cyclones, in shoreline change. However, they provide limited knowledge on the ecological-morphological link...