%0 Conference Proceedings
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%@resumeid 8JMKD3MGP5W/3C9JHUD
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%3 Abstract IAMAS 2009_NADIARA-1.pdf
%B IACS Joint Assembly.
%X The Antarctic continent shows a significant decrease of the total ozone content during the austral spring, from where air mass with poor ozone content can move generating secondary effects of the Antarctic Ozone Hole in low latitudes. The total ozone column data from Brewer Spectrophotometer is monitored at the Southern Space Observatory - OES/CRS/CIE/INPE - MCT (29.42° S, 53.87°W), São Martinho da Serra, Brazil, in a cooperation between Space Science Laboratory of Santa Maria  LACESM/CT/UFSM, Southern Regional Center for Space Science  CRS/CIE/INPE  MCT and Ozone Laboratory  LO/DGE/CEA/INPE  MCT. Ozone data from OMI on board NASA Satellite and data from NCEP reanalysis are also used in this analysis. The methodology is based in the analysis of potential vorticity on isentropic surfaces for days with low ozone total column from Brewer and OMI for 2008. Potential vorticity, which behaves as a dynamical tracer in the absence of diabatic effects, can be used to study the transport of air masses on isentropic surfaces in the stratosphere. The year of 2008 showed one event with decreased in the ozone measures in the Southern Space Observatory linked with the Antarctic Region, October 21th. The obtained results show the influence of air masses with poor ozone content on the central region of the Rio Grande do Sul state in Southern Brazil with a decrease to 271.5 DU, when the climatology for the region in the months of October is 292.9  ± 9.5 DU. The isentropic air mass back trajectories also proved the polar origin of the air masses.
%@mirrorrepository sid.inpe.br/mtc-m19@80/2009/08.21.17.02.53
%T Secondary effects of antarctic ozone hole in Southern Brazil for the year 2008, a case study
%@secondarytype PRE CI
%8 July, 19-29
%@group CRS-CCR-INPE-MCT-BR
%@group CRS-CCR-INPE-MCT-BR
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%@group CRS-CCR-INPE-MCT-BR
%2 sid.inpe.br/mtc-m19@80/2010/01.20.00.50.36
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
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%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%4 sid.inpe.br/mtc-m19@80/2010/01.20.00.50
%D 2009
%A Pereira, Nadiara,
%A Soares, Ana Marceli,
%A Leme, Neusa Paes,
%A Pinheiro, Damaris Kirsh,
%A Schuch, Nelson Jorge,
%C Montreal, Canada
%@area CEA