Articles | Volume 9, issue 2
Earth Surf. Dynam., 9, 183–203, 2021
https://doi.org/10.5194/esurf-9-183-2021
Earth Surf. Dynam., 9, 183–203, 2021
https://doi.org/10.5194/esurf-9-183-2021

Research article 17 Mar 2021

Research article | 17 Mar 2021

Quantifying thresholds of barrier geomorphic change in a cross-shore sediment-partitioning model

Daniel J. Ciarletta et al.

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Cited articles

Aagaard, T., Davidson-Arnott, R., Greenwood, B., and Nielsen, J.: Sediment supply from shoreface to dunes: linking sediment transport measurements and long-term morphological evolution, Geomorphology, 60, 205–224, 2004. 
Ashton, A. D. and Lorenzo-Trueba, J.: Morphodynamics of barrier response to sea-level rise, in: Barrier Dynamics and Response to Changing Climate, Springer, Cham, 277–304, 2018. 
Billy, J., Robin, N., Certain, R., Hein, C., and Berné, S.: Barrier shoreline evolution constrained by shoreface sediment reservoir and substrate control: The Miquelon-Langlade Barrier, NW Atlantic, J. Coast. Res., 65, 2089–2094, 2013. 
Billy, J., Robin, N., Hein, C. J., Certain, R., and FitzGerald, D. M.: Internal architecture of mixed sand-and-gravel beach ridges: Miquelon-Langlade Barrier, NW Atlantic, Mar. Geol., 357, 53–71, 2014. 
Boon, J. D. and Mitchell, M.: Nonlinear change in sea level observed at North American tide stations, J. Coast. Res., 31, 1295–1305, 2015. 
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The world's sandy coastlines are increasingly altered by humans and sea-level rise, yet quantitative relationships between coastal landscapes and sediment availability remain poorly described. Using a novel modeling framework, we explore the evolution of coastal barrier islands under varying rates of sea-level rise and sediment availability. Our model results suggest that as sea levels increase, minor changes in sediment availability could result in rapid changes to barrier coasts.