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Spatial variation in coastal foredune development
Psuty, N.P. (1992). Spatial variation in coastal foredune development, in: Carter, R.W.G. et al. (Ed.) Coastal dunes: geomorphology, ecology and management for conservation: Proceedings of the 3rd European Dune Congress Galway, Ireland, 17-21 June 1992. pp. 3-13
In: Carter, R.W.G. et al. (Ed.) (1992). Coastal dunes: geomorphology, ecology and management for conservation: Proceedings of the 3rd European Dune Congress Galway, Ireland, 17-21 June 1992. A.A. Balkema [etc.]: Rotterdam. ISBN 90-5410-058-3. 533 pp., more

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    Marine

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  • Psuty, N.P.

Abstract
    In locations of strong alongshore transport of sediment, coastal foredune forms develop in a spatial sequence that is related to the gradient of the alongshore sediment supply. The entire sequence of developmental forms may be present through either a spatial or a temporal succession. Spatial models of foredune sequence are depicted as they develop 1. in conjunction with a fluvial source or 2. in a barrier spit or barrier island association. Complexity of foredune development is seen as a product of interruptions of the alongshore supply of sediment. Interruptions may be spatial, causing displacements of the input sites, or changes in the direction of sediment transport. Interruptions may also be temporal, related to the sequences of sediment availability at a site, causing a sequence to be truncated in one time span and to be initiated at anther time. Variation may encompass both temporal and spatial changes, thereby increasing the complexity of form assemblages. Basic to the models is the assumption that the dune form is a product of the combination of dune and beach sediment budgets and that as the sediment budget combination varies, the form pass through a sequential pathway with characteristic morphologies.

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