Which outcome occurs when a coastal barrier island experiences significant overwash?

💡 Explanation

Landward migration happens because sediment is transported from the ocean side to the lagoon side by **overwash**, flattening the dune profile, therefore the island rolls landward with rising sea levels, rather than dune stabilization.

• Which outcome is accelerated when longshore drift slows near groynes?
• Which mechanism accelerates stream erosion as a result of increased glacial meltwater discharge?
• Which process causes the formation of freshwater lakes in regions undergoing isostatic rebound following deglaciation?
• Which risk increases when joints' orientation parallels coastline cliffs?
• Which outcome results from increased dissolved CO2 precipitation permeating karst?
• Which crustal deformation pattern primarily manifests alongside strike-slip movement across a continental transform fault?