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| Titel |
Changes on the fine sediment dynamics after the Port of Rio Grande expansion |
| VerfasserIn |
P. D. Silva, P. V. Lisboa, E. H. Fernandes |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7340
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| Digitales Dokument |
URL |
| Erschienen |
In: Proceedings of river, coastal and estuarine morphodynamics ; Nr. 39 (2015-01-14), S.123-127 |
| Datensatznummer |
250121314
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| Publikation (Nr.) |
 copernicus.org/adgeo-39-123-2015.pdf |
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| Zusammenfassung |
| The Patos Lagoon estuary is a reservoir of fine sediments derived from the
continental basin, which is exported to the coastal area through a narrow
channel with average discharge of 2000 m3 s−1. The Port of Rio Grande is
located in this connection channel between the Patos Lagoon and the Atlantic
Ocean, and recently received investments from the Brazilian Government to
expand its draft and modify the configuration of the breakwaters located at
the mouth. The objective of this study is to investigate changes in the fine
sediment dynamics in the estuarine and coastal region, after the
modernization work carried out at the Port of Rio Grande. The study was
conducted using a three-dimensional numerical model (TELEMAC-3D) coupled
with a sediment in suspension and morphological model (SediMorph). Results
were analyzed in a comparative way in relation to the deposition pattern
observed in these regions before and after the construction work. Results
indicate that there was a change in the deposition pattern and
redistribution of sediment at the bottom due to hydrodynamic changes
resulting from the new configuration of the breakwaters and progressive
deepening of the access channel. |
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