Which outcome occurs when deflation winnowing in dunes weakens?

💡 Explanation

Increased soil moisture enables dune vegetation stabilizing mobile sand sheets; this activates parabolic dune formation because vegetation anchors dune horns rather than slipface retreat, therefore parabolic shapes occur rather than barchan or seif forms.

• Which outcome is accelerated in fjord ecosystems experiencing reduced sea ice cover?
• Which process primarily influences fjord deepening as the overlying ice mass undergoes ablation?
• Which process yields diatomaceous earth deposits following upwelling?
• Which mechanism explains stream meandering increases due to reduced sediment load below dams?
• Which mechanism dictates aftershock frequency following a large strike-slip earthquake along a transform fault?
• Which erosional outcome is accelerated when cryoturbation destabilizes a cirque headwall?