Geomorphological significance of wind flow patterns over a Namib linear dune

A linear dune within the Namib Sand Sea exhibits its form through wind speed variations alone, without relying on secondary wind flows. This study demonstrates that the dune's intrusion into the boundary layer creates distinct wind flow patterns across its profile, with increasing speeds linked to erosion and decreasing speeds to sand deposition. By analyzing anemometer measurements and smoke flare visualizations, researchers postulate a qualitative model of linear dune dynamics driven solely by these wind speed changes. This challenges prior theories that invoked secondary wind flows, offering a novel perspective on the geomorphological significance of wind patterns in shaping dunes.

Livingstone, I. (2020). Geomorphological significance of wind flow patterns over a Namib linear dune. Aeolian Geomorphology, 97–112. https://doi.org/10.4324/9780429265150-6