ATMOSPHERIC ANALYSIS OF THE EVENTS SECONDARY EFFECT OF ANTARCTIC OZONE HOLE OVER THE SOUTH OF BRAZIL IN 2012. PART 1: IDENTIFICATION OF THE EVENTS AND ANALYSIS OF DYNAMIC IN THE STRATOSPHERE
In this study were identified events of Influence of the Antarctic ozone hole over southern Brazil in the year 2012. For this, we analyzed the daily average data of total ozone column obtained through Brewer Spectrophotometer, installed in the southern Space Observatory-OESCRSINPE-MCTI (29.4° S; 53....
Published in: | Ciência e Natura |
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Main Authors: | , , , , , , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | Portuguese |
Published: |
Universidade Federal de Santa Maria
2016
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Subjects: | |
Online Access: | https://periodicos.ufsm.br/cienciaenatura/article/view/12141 https://doi.org/10.5902/2179460X12141 |
Summary: | In this study were identified events of Influence of the Antarctic ozone hole over southern Brazil in the year 2012. For this, we analyzed the daily average data of total ozone column obtained through Brewer Spectrophotometer, installed in the southern Space Observatory-OESCRSINPE-MCTI (29.4° S; 53.8°; 488 m) and by satellite instruments Total Ozone Mapping Spectrometer (TOMS) and Ozone Monitoring Instrument (OMI), seeking days of falls in the ozone content. For these days, we analyzed potential vorticity maps made using Reanalysis data provided by NCEPNCAR and retroactive trajectories made through the Hysplit model of NOAA, in order to verify the origin of the polar air mass poor in ozone. In addition, it was also conducted a complementary analysis through the images of the ozone content of the OMI satellite, verifying the performance of the Antarctic Ozone Hole in polar regions and its connection with the Southern Brazil. The methodology used was shown to be effective in the identification of 2 events of side effect of the Antarctic ozone hole over the South of Brazil, which showed a fall of 12.1 ± 2.3 average in the ozone content. Na presente estudo foram identificados os eventos de Efeito Secundário do Buraco de Ozônio Antártico ocorridos sobre o Sul do Brasil no ano de 2012. Para isso, foram analisados os dados médios diários da coluna total de ozônio obtidos através de Espectrofotômetro Brewer, instalado no Observatório Espacial do Sul – OES/CRS/INPE – MCTI (29,4 °S; 53,8°O; 488,7m) e pelos instrumentos de satélite Total Ozone Mapping Spectrometer (TOMS) e Ozone Monitoring Instrument (OMI), buscando dias de quedas no conteúdo de ozônio. Para estes dias, foram analisados mapas de vorticidade potencial confeccionados utilizando dados de reanálise fornecidos pelo NCEP/NCAR e trajetórias retroativas confeccionadas através do modelo Hysplit da NOAA, a fim de verificar a origem polar da massa de ar pobre em ozônio. Além disso, foi também realizada uma análise complementar através das imagens do conteúdo de ozônio do satélite OMI, verificando-se a atuação do Buraco de Ozônio na região Antártica e sua conexão com o Sul do Brasil. A metodologia empregada mostrou-se eficaz na identificação de 2 eventos de Efeito Secundário do Buraco de Ozônio Antártico sobre o Sul do Brasil, os quais apresentaram uma queda média de 12,1 ± 2,3% no conteúdo de ozônio. |
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