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
Jazyk: angličtina
Rok vydání: 2017
Předmět:
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