Which feedback loop contributes to crevasse splays breaching levees?

💡 Explanation

Crevasse splays enlarge breaches through positive feedback, where initial overbank flow erodes and widens breaches, increasing flow and sediment deposition on the floodplain; because the increased flow erodes laterally rather than contained within the levee, it creates larger splays and eventual breaching of the levee system; hence the positive feedback.

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