%0 Conference Proceedings
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%@resumeid 8JMKD3MGP5W/3C9JJ6U
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%3 interannual.pdf
%B International Conference on Southern Hemisphere Meteorology and Oceanography, 9.
%X The western region of the South Atlantic Ocean is highly complex in terms of ocean circulation, water masses formation and mixing both at the open ocean and at the coast. The open ocean is modulated by strong mesoscale variability, mainly dominated by the Brazil Current (BC) and the Malvinas/Falkland Current (MC) at their meeting region known as the Brazil-Malvinas Confluence (BMC). These currents are characterized by high temporal and spatial variability of the transport, sea surface temperature (SST), chlorophyll concentration and sea surface height. As part of the Brazilian Antarctic Program (PROANTAR), simultaneous in situ measurements of the Atmospheric and Oceanic Boundary Layers (MABL and OBL) are continuously performed at the Brazil- Malvinas Confluence region (BMC) since 2004. The BMC region is known as one of the most energetic regions of the World Ocean presenting very strong thermal gradients between the meeting waters of the warm Brazil Current (BC) and the cold Malvinas Current (MC). The in situ experiments were inspired by previous works where the air-sea coupling was investigated in the Equatorial Pacific (Hashizume et al., 2002), Agulhas Current return flow regions (Rouault et al., 2000) and in the BMC region itself (Pezzi et al. 2005; Tokinaga et al. 2005). All these regions are subject to high thermal and/or sea level contrasts owing to the presence of Tropical Instability Waves (TIW), oceanographic fronts and mesoscale features such as meanders or eddies. Four experiments were conducted onboard OSS Ary Rongel. While crossing the BMC front, profiles of water temperature and atmospheric parameters were made. Using data from 2004, Pezzi et al. (2005) demonstrated that the MABL was directly modulated by the very strong surface thermal gradients between the warm waters of the BC and cold waters of the MC. To our knowledge, simultaneous descriptions of the MABLOBL synoptic conditions at BMC are very rare. This work presents an original description of the MABL and OBL structure as well as the air-sea coupling at the BMC region based on in situ data collected during four INTERCONF cruises that took place during specific dates in the Austral spring from 2004 to 2007.
%@mirrorrepository sid.inpe.br/mtc-m19@80/2009/08.21.17.02.53
%T Interannual analysis of the ocean-atmosphere in situ observations at the Brazil-Malvinas confluence region
%@electronicmailaddress luciano.pezzi@cptec.inpe.br
%@electronicmailaddress ronald@dsr.inpe.br
%@format Papel
%@tertiarytype Poster
%@secondarytype PRE CI
%K x.
%8 9 - 13 Feb
%@group DMD-CPT-INPE-MCT-BR
%@group PAN-CCR-INPE-MCT-BR
%@e-mailaddress deicy@cptec.inpe.br
%@secondarykey INPE--PRE/
%2 sid.inpe.br/mtc-m19@80/2009/12.09.11.18.55
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%4 sid.inpe.br/mtc-m19@80/2009/12.09.11.18
%D 2009
%A Pezzi, Luciano Ponzi,
%A Souza, Ronald Buss de,
%A Russo, Lucimara,
%C Melbourne Australia
%@area SRE