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Reconstructing Coastal Sediment Budgets From Beach- And Foredune-Ridge Morphology: A Coupled Field And Modeling Approach, Daniel J. Ciarletta, Justin L. Shawler, Christopher Tenebruso, Christopher J. Hein, Jorge Lorenzo Trueba

Department of Earth and Environmental Studies Faculty Scholarship and Creative Works

Preserved beach and foredune ridges may serve as proxies for coastal change, reflecting alterations in sea level, wave energy, or past sediment fluxes. In particular, time-varying shoreface sediment budgets have been inferred from the relative size of foredune ridges through application of radiocarbon and optically stimulated luminescence dating to these systems over the last decades. However, geochronological control requires extensive field investigation and analysis. Purely field-based studies might also overlook relationships between the mechanics of sediment delivery to the shoreface and foredune ridges, missing insights about sensitivity to changes in sediment budget. We therefore propose a simple geomorphic model of …