Effects of fetch and surface texture on aeolian sand transport on two nourished beaches |
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| Institution: | 1. Cedar Lodge, Maenygroes, Ceinewydd, Ceredigion SA45 9RL, United Kingdom;2. Petroleum Geoscience Programme, Department of Chemical Engineering, The University of the West Indies, St. Augustine, Trinidad and Tobago;3. Smithsonian Institution, Mathematics and Statistics, MRC-121, P O Box 37012, Washington, DC 20013-7012, USA;1. MSk Lab, Imperial College London, London, UK;2. St Vincent''s Hospital, University of Melbourne, Fitzroy, Australia |
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| Abstract: | Aeolian sand transport on two nourished beaches was related to the fetch of the wind over the beach sand and to surface characteristics. Meteorological and hydrological conditions were recorded for 2 months. The fetch of wind over beach sand was estimated from wind direction, water level, wave height and beach topography. Aeolian sand transport was determined with sand traps. Sediment flux was found to increase with fetch, although this relation was especially affected by the variability in surface characteristics. On one of the beaches sediment supply was limited as a result of shells, forming a lag deposit. |
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