A Regional Study of the Brazilian Shelf/Slope Circulation (13◦-31◦s) Using Climatological Open Boundaries

Abstract

ABSTRACT. The oceanic features in the eastern and southeastern Brazilian shelf/slope between 13 • -31 • S are investigated using ROMS (Regional Ocean Model System). The model was integrated for 9 years and it was forced with: i) 6-hourly synoptic atmospheric data from NCEP; ii) initial and boundary conditions from RESUMO. A circulação oceânica na região da plataforma/talude do Brasil de 13 • -31 • Sé investigada utilizando o modelo ROMS (Regional Ocean Model System).O modelo foi integrado por 9 anos e forçado com: i) dados atmosféricos sinótico a cada 6 horas do NCEP; ii) condições iniciais e laterais provenientes da climatologia mensal do modelo global OCCAM (Ocean Climate Circulation Advanced Modelling) e iii) forçamento de maré do modelo global TPXO 7.1. Os resultados do modelo foram comparados com observações, estas consistem em dados da profundidade da camada de mistura climatológica, dados de satélite, medições de marégrafos ao longo da plataforma e valores de medições de correntes disponíveis na literatura.

Analysis of currents on the continental shelf off the Santa Catarina Island through measured data

“…The circulation of the oceans in the South Brazilian Bight (SBB, which comprehend the region between Cabo Frio/RJ and Cabo de Santa Marta/SC) has been well studied and documented in recent years, especially through regional numerical models (Stech & Lorenzzetti, 1992;Mesquita & Harari, 2003;Souza & Robinson, 2004;Palma et al, 2004;Calado et al, 2008;Palma et al, 2008;Oliveira et al, 2009;Matano et al, 2010;Lima et al, 2013;Pereira et al, 2013). On the other hand, hydrodynamic studies with measured data on the South Brazilian Bight (SBB) remain scarce.…”