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Dynamics of secondary airflow and sediment transport over and in the lee of transverse dunesDepartment of Geography, University of Victoria, P.O. Box 3050, Station CSC, Victoria, British Columbia, Canada V8W3P5, ijwalker{at}uvic.ca
Department of Geography, University of Guelph, Guelph, Ontario, Canada NIG2W1 Recent research literature on secondary airflow and sediment transport patterns over flow-transverse dunes is reviewed. Various issues surrounding the behaviour, modelling and sedimentological implications of near-surface airflow dynamics over dunes are discussed, including: the Law of the Wall; the Jackson and Hunt airflow model; the effects of streamline compression, acceleration and curvature on stoss slope shear stress; and, in particular, recent efforts to characterize secondary lee-side airflow patterns. A revised conceptual model of lee-side airflow is presented and areas for further research are identified regarding the implications of such patterns for dune sedimentary dynamics, morphology, and migration.
Key Words: aeolian processes boundary layer lee-side airflow sand dune dynamics secondary airflow sediment transport shear stress turbulence wind tunnel simulation wind velocity
Progress in Physical Geography, Vol. 26, No. 1,
47-75 (2002) This article has been cited by other articles:
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