Which feedback mechanism predominates when increased sediment deposition raises an artificial levee's height?

💡 Explanation

When levee height increases from deposition, a positive feedback is triggered because reduced floodplain inundation concentrates flood energy within the channel, intensifying sediment deposition further improving channel shape. Therefore, reduced floodplain inundation exacerbates deposition results, rather than the stream upgrading due to slope which occurs with avulsion.

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