National Institute for Coastal and Marine Management/RIKZ, PO Box 20907; 2500 EX The Hague, the Netherlands.
On the modelling of two-dimensional aeolian dunes
Article first published online: 14 JUN 2006
Volume 44, Issue 1, pages 127–141, February 1997
How to Cite
STAM, J. M. T. (1997), On the modelling of two-dimensional aeolian dunes. Sedimentology, 44: 127–141. doi: 10.1111/j.1365-3091.1997.tb00428.x
- Issue published online: 14 JUN 2006
- Article first published online: 14 JUN 2006
- Manuscript received 5 January 1995; revision accepted 20 May 1996.
In this study the modelling of aeolian dunes is treated from the background of the physical processes that form them. The paper concentrates on two-dimensional modelling, which can be applied to transverse and barchan dunes. The basic assumptions and equations are discussed and three models are presented: (a) a kinematic model which is based on a linear variation of the sediment transport with the topographic height; (b) an analytical model based on a boundary-layer model of the wind velocity and Bagnold's linearized sediment transport formula; (c) a generalization of this analytical model in a computer program which includes a simple routine for simulating the redistribution of sediment through avalanching. The relative importance of the simplifications is considered and indications are given for the practical applications of these three models in field studies.