Circulação e balanço de sal no estuário do Rio São Francisco (NE/Brasil)
Autor: | Geórgenes H. Cavalcante, Luiz Bruner de Miranda, Paulo Ricardo Petter Medeiros |
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Jazyk: | angličtina |
Rok vydání: | 2017 |
Předmět: |
0106 biological sciences
Salinity circulação lcsh:Hydraulic engineering lcsh:River lake and water-supply engineering (General) Aquatic Science Oceanography salinidade lcsh:Technology 01 natural sciences lcsh:TC1-978 010608 biotechnology estuário do são francisco Estratificação São Francisco Estuary Transporte de sal lcsh:Environmental sciences Earth-Surface Processes Water Science and Technology lcsh:GE1-350 lcsh:TC401-506 geography.geographical_feature_category lcsh:T 010604 marine biology & hydrobiology lcsh:Geography. Anthropology. Recreation Estuário do São Francisco Estuary Salt transport estratificação Circulation Geography lcsh:G Circulação Salt balance transporte de sal Stratification Humanities Salinidade |
Zdroj: | RBRH, Volume: 22, Article number: e31, Published: 10 APR 2017 RBRH v.22 2017 RBRH Associação Brasileira de Recursos Hídricos (ABRH) instacron:ABRH Revista Brasileira de Recursos Hídricos, Vol 22 |
Popis: | In order to evaluate how river discharge and tidal currents forcing influence the circulation and salt transport within the São Francisco River-Estuary, a two 25 hour surveys campaigns and along-channel profiles were performed in the estuary main channel (18/19 and 25/26 February 2014). The current intensity showed higher asymmetry between flood (v0) currents in spring tide (-0.6 and 1.1 m/s), as compared to neap tide (-0.4 and 1.0 m/s), which was attributed to the intense buoyancy energy enhanced by the stronger discharge in spring. Overall, salinity presented high stratified conditions and varied between 0.0 0) durante a sizígia (-0,6 e 1,1 m/s), em comparação com a maré de quadratura (-0,4 e 1,0 m/s). Tal resultado foi atribuído à forte energia de empuxo intensificado pela maior força da descarga fluvial na sizígia. Em geral, a salinidade apresentou forte estratificação vertical variando da superfície ao fundo entre 0,0 |
Databáze: | OpenAIRE |
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