Which process intensifies sediment transport when dune crest shearing increases?

💡 Explanation

Saltation bombardment propagates as the wind shear threshold is passed beyond the viscous sublayer. This is because increased wind energy enhances grain impact and splash, therefore saltation processes will propagate faster in the dunes, rather than weaker soil creep that mitigates it.

• Which risk increases when earthquake shaking exceeds the seismic design spectrum of a concrete dam?
• Which outcome occurs when urban expansion reduces evaporative cooling?
• Which risk increases when urban development overlays karst regions?
• Which outcome occurs when construction on unstable alluvial terraces?
• Which process generates elevated methane release from thermokarst lake formation in arctic permafrost regions?
• Which consequence results when an alluvial river's sinuosity increases significantly?