The response of barrier islands to sea‐level rise is modulated by combinations of coastal
processes, eco‐geomorphic feedbacks and structural controls, such as antecedent
topography. Interactions among these drivers can lead to complex and non‐linear changes
in island morphology and transitions between migrational, erosional or progradational
states. This study seeks to constrain the morphological consequences of barrier islands
migrating across complex antecedent topography in response to rising sea level. The …

These data are sediment core data from the barrier islands and backbarrier lagoons, bays,
and marshes of Brigantine Island (NJ, USA), Assateague Island (MD, USA), Cedar Island
(VA, USA), and Parramore Island (VA, USA). Vibracore data from marshes and bays were
collected using a vibracore system with the ability to core through a 'moonhole'on a flat
bottom boat. Geoprobe cores were collected using a track-mounted 66DT Geoprobe direct-
push drill rig. Select samples from the sediment cores (associated with Figure 9 of Shawler …