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dc.contributor.authorRodrigues, M.pt_BR
dc.contributor.authorFortunato, A. B.pt_BR
dc.date.accessioned2017-12-29T12:07:52Zpt_BR
dc.date.accessioned2018-03-06T16:43:45Z-
dc.date.available2017-12-29T12:07:52Zpt_BR
dc.date.available2018-03-06T16:43:45Z-
dc.date.issued2017-12pt_BR
dc.identifier.citationhttps://doi.org/10.3934/environsci.2017.6.763pt_BR
dc.identifier.urihttps://repositorio.lnec.pt/jspui/handle/123456789/1010215-
dc.description.abstractCirculation patterns and physical regimes play a major role in estuarine ecosystems. Understanding how different drivers, like climate change, may affect the estuarine dynamics is thus fundamental to guarantee the preservation of the ecological and economical values of these areas. The Tagus estuary (Portugal) supports diverse uses and activities, some of which may be negatively affected by changes in the hydrodynamics and salinity dynamics. Numerical models have been widely used in this estuary to support its management. However, a detailed understanding of the three-dimensional estuarine circulation is still needed. In this study, a three-dimensional hydrodynamic baroclinic model was implemented and assessed using the modeling system SCHISM. The model assessment was performed for contrasting conditions in order to evaluate the robustness of the parametrization. Results show the ability of the model to represent the main salinity and water temperature patterns in the Tagus estuary, including the horizontal and vertical gradients under different environmental conditions and, in particular, river discharges. The model setup, in particular the vertical grid resolution and the advection scheme, affects the model ability to reproduce the vertical stratification. The TVD numerical scheme offers the best representation of the stratification under high river discharges. A classification of the Tagus estuary based on the Venice system regarding the salinity distribution for extreme river discharges indicates a significant upstream progression of the salt water during drought periods, which may affect some of the activities in the upper estuary (e.g., agriculture). The model developed herein will be used in further studies on the effects of climate change on the physical and ecological dynamics of the Tagus estuary.pt_BR
dc.language.isoengpt_BR
dc.publisherAIMS Presspt_BR
dc.rightsopenAccesspt_BR
dc.subjectSchism modelling systempt_BR
dc.subjectSalinitypt_BR
dc.subjectTemperaturept_BR
dc.subjectVenice systempt_BR
dc.subjectEstuarine circulationpt_BR
dc.titleAssessment of a three-dimensional baroclinic circulation model of the tagus estuary (Portugal)pt_BR
dc.typearticlept_BR
dc.description.pages763-787pppt_BR
dc.description.volumeVol.4, N6pt_BR
dc.description.sectorDHA/NECpt_BR
dc.description.magazineAIMS Environmental Sciencept_BR
dc.contributor.peer-reviewedSIMpt_BR
dc.contributor.academicresearchersNAOpt_BR
dc.contributor.arquivoSIMpt_BR
Appears in Collections:DHA/NEC - Comunicações a congressos e artigos de revista

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