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| Stepanian, A; Levoy, F. |
| The present paper deals with the morphodynamics of intertidal bars on Omaha beach, a macrotidal beach located along the Normandy coastline. During two years (defined here as medium-term time-scale), a monthly topographic monitoring has been conducted on this beach. An analysis of the morphological evolution of the ridge and runnel systems is performed and correlated to the forcing conditions (waves and tide) recorded on the lower foreshore. Our results allow to distinguish some morphodynamical evolution sequences with one stage of accretion and one stage of destruction of the bars. In order to discriminate these two stages, an energetic criterion is used. Accretion stages correspond to long periods of fair weather conditions (significant wave height, H-s... |
| Tipo: Text |
Palavras-chave: Morphodynamique; Plage macrotidale; Barres et bâches; Normandie; France; Morphodynamics; Macrotidal beach; Ridges and runnels; Normandy; France. |
| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/00322/43274/43005.pdf |
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| Waeles, Benoit; Le Hir, Pierre; Lesueur, P; Delsinne, N. |
| The mouth of the Seine River estuary (France) has undergone marked morphological evolution over several decades mainly due to engineering works aimed at improving access to Rouen and Le Havre harbours. The intertidal areas are decreasing in size and the lower estuary is accumulating sediment and prograding. In order to understand and better describe the major morphological behaviours of the estuary, a morphodynamic numerical model was developed within the Seine-Aval program. At the end of the 1st part of the research program, a validated fine sediment transport model (3D) was available (Le Hir et al., 2001b). As the present morphological study addresses medium-term issues (a few decades), and because of the need to investigate impacts of local structures... |
| Tipo: Text |
Palavras-chave: Sand and mud mixtures; Sediment transport modelling; Morphodynamics. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-7404.pdf |
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| Barros,Francisco; Borzone,Carlos Alberto; Rosso,Sergio. |
| Benthic macroinfauna of six beaches near to Guaratuba Bay, Paraná, Brazil were studied in summer and winter of 1994. Sampling stations were distributed along a transect, from upper of the drift line to depths of nearly 3 m behind the first break of the surf zone. Biological and sedimentological samples, slope, wave height and period were recorded. Subtidal samples were collected by scuba diving. The beaches varied from extremely inclined, composed of coarse sediments, to low inclined, composed of fine and very fine sands. The polychaete Scolelepis squamata, was the numerically dominant species in those beaches composed by fine to very fine sand in the subaereal profile. The echinoderm Mellita quinquiesperforata occurred in the last stations of the surf... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Macroinfauna; Sandy beaches; Zonation; Morphodynamics; Paraná; Brazil. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132001000400005 |
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