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 consequence results when isostatic rebound lags erosion in island archipelagos?
• Which consequence results when eolian transport bypasses a small upwind island?
• Which landform develops where strike-slip plate motion predominates?
• Which process explains magma composition variation causing island arcs?
• Which outcome decreases wave energy transmitted landward across barrier islands?
• Which consequence typically follows decreased offshore wind intensity?