The correlated behavior of sandbars and foredunes on a nontidal coast (Danube Delta, Romania)

Tătui, F., Vespremeanu-Stroe, A. and Preoteasa, L., 2013. The correlated behavior of sandbars and foredunes on a nontidal coast (Danube Delta, Romania) Coastal foredunes, shoreline and nearshore sandbars compose one large-scale interactive morphological system. Although the variability of these coas...

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Bibliographic Details
Published in:Journal of coastal research 2013-01, Vol.65 (sp2), p.1874-1879
Main Authors: Tătui, Florin, Vespremeanu-Stroe, Alfred, Preoteasa, Luminiţa
Format: Article
Language:English
Subjects:
beach volume
mouth bar
Nearshore sediment transport
SANDY BEACHES
shoreline evolution
surf zone morphodynamics
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Summary:Tătui, F., Vespremeanu-Stroe, A. and Preoteasa, L., 2013. The correlated behavior of sandbars and foredunes on a nontidal coast (Danube Delta, Romania) Coastal foredunes, shoreline and nearshore sandbars compose one large-scale interactive morphological system. Although the variability of these coastal features and their connection to environmental factors have been the focus of many analyses, the direct interactions between them are yet poorly identified, especially for natural nontidal coasts. This paper presents the preliminary results regarding the correlated behavior of the foredunes, shoreline and sandbars in a multi-bar, low-lying deltaic coastal zone, based on six years of seasonal bathymetric and topographic surveys. The analysis shows that, at the multiannual scale, there is a good correlation between the morphometric parameters (volumes and widths) and behaviour (spatial and temporal) of sandbars and foredunes, especially along the accumulative and stable sectors of the study area. Good correlation of these sectors is expressed by the fact that the two entities are interdependent and they present similar variability. The weak correlation identified along the erosive sector is probably due to the significantly lower variability of the foredunes when compared to that of the sandbars. This could reflect the strong influence of the Sf. Gheorghe mouth bar and the pattern of sediment availability, wave climate and longshore sediment transport characteristics along the three sectors of the study area with different shoreline dynamics.
ISSN:0749-0208
1551-5036
DOI:10.2112/SI65-317.1