Which outcome occurs as a sand barrier's sediment budget becomes increasingly negative?

💡 Explanation

Breaching occurs because decreased sediment supply leads to reduced barrier island elevation and width. This causes increased vulnerability to storm surges exceeding the barrier elevation, inducing overwash, therefore inundating low areas rather than stabilizing the barrier.

• Which process limits fjord depth more directly than eustatic sea level changes?
• Which outcome occurs when a barrier island's sediment budget shrinks?
• Which outcome occurs when the isostatic equilibrium of a coastal region experiences glacial retreat?
• Which mechanism causes oxygen depletion in deep ocean layers during thermohaline circulation slowdown?
• Which atmospheric flow trajectory alters when a cyclone approaches very high latitudes?
• Which ecological change results when pyroclastic flows sterilize landscapes?