Which outcome occurs when strong unidirectional winds consistently encounter barchan dunes exceeding a height threshold?

💡 Explanation

Slipface avalanche intensifies sharply because exceeding a dune height threshold increases gravitational potential energy, causing more sand to move during avalanches via grainflow. Therefore, avalanche magnitude increases with dune height, rather than stasis or dampened erosion under constant sediment supply.

• Which mechanism accelerates lake eutrophication when agricultural runoff containing phosphorus enters?
• Which process causes increased sorting within alluvial fans?
• Which process increases surface clay accumulation following dust deposition?
• Which outcome primarily follows increased rainfall over poorly draining, sandy soils?
• Which outcome sharply increases weathering rates where fractured limestone underlies shallow soil?
• Which outcome decreases the effectiveness of sediment bypassing systems installed alongside coastal barrier islands?