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dc.contributor.authorPortela, L. I.pt_BR
dc.contributor.editorJournal of Coastal Researchpt_BR
dc.description.abstractAstudy has been conducted to provide updated estimates (period 1980-2000) of the transfer of sedimentary material from the Guadiana river (SW Europe) to the coastal ocean, focusing on the role played by the estuarine system. The discharge of fine suspended sediment from the river to the estuary has been calculated based on measured data and compared with previous estimates. Numerical models of cohesive and non-cohesive sediment transport have been used to provide order of magnitude estimates of sediment fluxes from the estuary to the continental shelf for different freshwater flow scenarios. Episodic flood events play a crucial role in the discharge of sediment from the Guadiana river to the coastal ocean. Apparently, the estuary retains only a minor share (about 10%) of the total amount of finegrained sediment produced in the drainage basin, which is presently estimated at 0.5-1.5 x 10 t year . Based on the calculation of sediment transport capacities, it is estimated that the order of magnitude of the transfer of sand from the estuary to the coastal region is 0.1 x 10 m year , which seems in agreement with the recent pattern of shorelinept_BR
dc.format.extent197645 bytespt_BR
dc.publisherJournal of Coastal Researchpt_BR
dc.relation.ispartofseriesSpecial Issue 39pt_BR
dc.subjectFine sedimentpt_BR
dc.subjectRiver basinpt_BR
dc.subjectCoastal evolutionpt_BR
dc.titleCalculation of Sediment Delivery from the Guadiana Estuary to the Coastalpt_BR
dc.description.pages5 pp.pt_BR
dc.identifier.seminario(Proceedings of the 8th International Coastal Symposium)pt_BR
dc.identifier.identificacaoISSN 0749-0208pt_BR
Appears in Collections:DHA/NEC - Comunicações a congressos e artigos de revista

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