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| PAIVA,BÁRBARA P.; SCHETTINI,CARLOS A.F.; PEREIRA,MARÇAL D.; SIEGLE,EDUARDO; MIRANDA,LUIZ B.; ANDUTTA,FERNANDO P.. |
| ABSTRACT Estuarine processes are directly related to the interaction of its forcing conditions with the local morphology. In this study we assess the implications of the opening of a new inlet on the hydrodynamics and suspended sediment concentration (SSC). A set of physical parameters have been measured in the Itanhém river estuary, a small, shallow and mangrove fringed tropical estuary in Northeastern Brazil. Field surveys have been conducted in August 2007 and January 2008, separated by an important morphological change. Our observations show that even shortening the lower estuary channel in 2 km, the inlet opening did not imply in changes in the estuarine circulation. However, SSC increased after the inlet opening. General estuarine circulation showed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Estuarine circulation; Sediment fluxes; Morphological changes; Tidal asymmetry. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000401265 |
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| Graewe, Ulf; Floeser, Goetz; Gerkema, Theo; Duran-matute, Matias; Badewien, Thomas H.; Schulz, Elisabeth; Burchard, Hans. |
| A baroclinic three-dimensional numerical model for the entire Wadden Sea of the German Bight in the southern North Sea is first assessed by comparison to field data for surface elevation, current velocity, temperature, and salinity at selected stations and then used to calculate fluxes of volume and salt inside the Wadden Sea and the exchange between the Wadden Sea and the adjacent North Sea through the major tidal inlets. The model is simulating the reference years 2009–2011. An overview of tidal prisms and residual volume fluxes of the main inlets and their variability is given. In addition, data from an intensive observational campaign in a tidal channel south of the island of Spiekeroog as well as satellite images and observations of sea surface... |
| Tipo: Text |
Palavras-chave: Wadden Sea; GETM; Coastal ocean modeling; Tidal straining; Estuarine circulation; Total exchange flow. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00347/45832/45487.pdf |
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| Defontaine, Sophie; Sous, Damien; Morichon, Denis; Verney, Romaric; Monperrus, Mathilde. |
| The present paper reports on a series of field experiments aiming to characterise the functioning of a man-engineered strongly forced salt-wedge estuary: the lower estuary of the Adour river, France. Bottom-moored velocity measurements and surface boat surveys have been performed under low river discharge conditions, for both neap and spring tides, in order to provide a well-documented reference framework to understand the dynamics of water masses, turbulence and suspended particulate matter (SPM) transport in the lower estuary. An additional campaign has been carried out in high river discharge conditions. This first documented in-situ study of the Adour lower estuary demonstrates its variability in terms of hydrological regimes, from salt-wedge to... |
| Tipo: Text |
Palavras-chave: Salt-wedge estuary; Estuarine circulation; Stratification; Turbulence; Suspended particles transport; Adour river. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00588/70049/67987.pdf |
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| Guiral, Daniel; Kouassi, Aka Marcel; Arfi, Robert. |
| Pour contrôler la prolifération de la végétation aquatique flottante, en Côte d'Ivoire, une ouverture dans le cordon littoral a été pratiquée en septembre 1987 mettant ainsi en communication directe le fleuve Comoé avec l'océan. L'impact de cet aménagement sur l'hydrochimie (salinité, éléments nutritifs et biomasse chlorophyllienne)et le degré de contamination bactérienne a été étudié dans la zone proche du canal de Vridi. Avant la réouverture du grau de Bassam, les eaux du Comoé s'évacuaient dans l'océan par ce canal artificiel situé dans la ville d'Abidjan. L'étude comparative de deux cycles annuels en quatre stations avant (1985) et après (1987/88)l'ouverture du grau de Bassam (Analyses en Composantes Principales(ACP))est discutée en fonction des... |
| Tipo: Journal Contribution |
Palavras-chave: Microbial contamination; Estuarine circulation. |
| Ano: 1991 |
URL: http://hdl.handle.net/1834/5259 |
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