Which risk increases to barrier islands seaward when longshore sediment transport weakens?

💡 Explanation

Increased tidal inundation frequency rises because sediment starvation causes island narrowing via sediment transport. Without adequate sediment, overwash frequency accelerates because of the lack of a stable protective berm, therefore tidal inundation increases, rather than vegetation changes.

• Which mechanism causes increased stream meandering in regions experiencing permafrost thaw?
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