from Part III - Dune Processes and Dynamics
Published online by Cambridge University Press: 03 March 2023
Dunes are created and modified by a series of interactions between the sand surface and the local topographically modified atmospheric boundary layer. Airflow over dunes is characterized by flow acceleration on windward slopes and a complex pattern of flow separation and secondary flows on lee slopes. Spatial and temporal changes in airflow give rise to nonlinear changes in sand transport rates, which in turn determine the initiation, development, and equilibrium morphology of all dunes.
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