Which outcome occurs when a hurricane breaches a barrier island?

💡 Explanation

Ephemeral inlets and overwash occur because storm surge erodes channels through the barrier island via hydraulic action; the island breaches, therefore flow is concentrated, rather than being broadly distributed, changing the topography considerably. Salinity may increase rather than decrease.

• Which consequence results when a barrier island erodes?
• Which risk significantly increases downwind subsequent to sustained tephra deposition?
• Which outcome occurs when gas pressure exceeds constraint in a volcanic dome?
• Which effect increases when humid air flows poleward?
• Which outcome occurs when bioturbation decreases within wetlands?
• Which outcome increases following severe storm surge overtopping engineered coastal barriers?