The co-influence of the sea breeze and the coastal upwelling at Cabo Frio: a numerical investigation using coupled models

Authors

  • Flávia Noronha Dutra Ribeiro Universidade de São Paulo; Instituto de Astronomia, Geofísica e Ciências Atmosféricas; Departamento de Ciências Atmosféricas
  • Jacyra Soares Universidade de São Paulo; Instituto de Astronomia, Geofísica e Ciências Atmosféricas; Laboratório de Interação Ar-mar Grupo de Micrometeorologia; Departamento de Ciências Atmosféricas
  • Amauri Pereira de Oliveira Universidade de São Paulo; Instituto de Astronomia, Geofísica e Ciências Atmosféricas; Grupo de Micrometeorologia; Departamento de Ciências Atmosféricas

DOI:

https://doi.org/10.1590/S1679-87592011000200002

Keywords:

Coupled numerical model, coastal upwelling, sea breeze, local atmospheric circulation

Abstract

A coupled atmospheric-oceanic model was used to investigate whether there is a positive feedback between the coastal upwelling and the sea breeze at Cabo Frio - RJ (Brazil). Two experiments were performed to ascertain the influence of the sea breeze on the coastal upwelling: the first one used the coupled model forced with synoptic NE winds of 8 m s-1 and the sign of the sea breeze circulation was set by the atmospheric model; the second experiment used only the oceanic model with constant 8 m s-1 NE winds. Then, to study the influence of the coastal upwelling on the sea breeze, two more experiments were performed: one using a coastal upwelling representative SST initial field and the other one using a constant and homogeneous SST field of 26°C. Finally, two more experiments were conducted to verify the influence of the topography and the spatial distribution of the sea surface temperature on the previous results. The results showed that the sea breeze can intensify the coastal upwelling, but the coastal upwelling does not intensify the sea breeze circulation, suggesting that there is no positive feedback between these two phenomena at Cabo Frio.

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Published

2011-06-01

How to Cite

Ribeiro, F. N. D., Soares, J., & Oliveira, A. P. de. (2011). The co-influence of the sea breeze and the coastal upwelling at Cabo Frio: a numerical investigation using coupled models. Brazilian Journal of Oceanography, 59(2), 131-144. https://doi.org/10.1590/S1679-87592011000200002

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Section

naodefinida