Which outcome increases erosion around groynes because of altered sediment transport?

💡 Explanation

Downdrift erosion increases due to reduction in sediment deposition available after the groyne, a mechanism of sediment starvation, because the longshore drift is interrupted; therefore, erosion increases down-current rather than deposition increasing on both sides.

• Which risk increases during intense thawing events in permafrost regions with alluvial fans?
• Which river behavior initiates cutoff formation reducing planform?
• Which process rapidly alters river delta morphology when coarse alluvial sediment deposition reduces flow capacity?
• Which mechanism causes increased sediment deposition in the cutoff area of a forming oxbow lake?
• Which landscape consequence occurs when desert pavements undergo deflation?
• Which risk markedly increases along barrier islands trending parallel if rising sea temperatures reduce ice sheet albedo?