Please use this identifier to cite or link to this item: http://www.repositorio.uem.mz/handle258/716
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dc.contributor.authorChevane, Clousa Maueua-
dc.contributor.authorPenven, Pierrick-
dc.contributor.authorNehama, Fialho P.J.-
dc.contributor.authorReason, Chris J.C.-
dc.date.accessioned2022-11-24T09:12:44Z-
dc.date.available2022-11-24T09:12:44Z-
dc.date.issued2016-
dc.identifier.urihttp://www.repositorio.uem.mz/handle258/716-
dc.language.isoengen_US
dc.rightsembargoedAcessen_US
dc.subjectBarotropic tidal currentsen_US
dc.subjectROMSen_US
dc.subjectSea surface temperatureen_US
dc.subjectShallow seasen_US
dc.subjectTidal fronten_US
dc.titleModelling the tides and their impacts on the vertical stratification over the Sofala Bank, Mozambiqueen_US
dc.typearticleen_US
dc.description.resumoThe Sofala Bank, a wide shelf located along the central coast of Mozambique, hosts tides with high amplitudes. The Regional Ocean Modelling System (ROMS) was used to analyse the tidal currents on the bank and to investigate their effects on the stratification and generation of tidal fronts. During spring tides, barotropic tidal currents with maximum values ranging from 40 cm s–1 to 70 cm s–1 are found on the central bank. The major axis of the tidal ellipses for M2 and S2 follow a cross-shelf direction with mainly anticlockwise rotation. Similar to observations, three distinct regimes occur: (i) a warm well-mixed region on the inner shelf where the depths are <30 m; (ii) a well mixed colder region above the shelf edge; and (iii) a stratified region offshore. The model shows that the tides lead to cooling where two criteria are satisfied: the Simpson and Hunter parameter log10(h/U3) <3.2 and the depth h >30 m. The shelf edge of the bank is important for internal tide generation. Two frontal structures result, one offshore between cooler mixed waters and warmer stratified waters and the other in shallow inshore waters, between cooler mixed waters and solar heated mixed waters.en_US
dc.journalAfrican Journal of MArine Scienceen_US
Appears in Collections:Artigos Publicados em Revistas Cientificas - ESCMC

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