@InProceedings{PereiraSoaLemPinSch:2009:SeEfAn,
               author = "Pereira, Nadiara and Soares, Ana Marceli and Leme, Neusa Paes and 
                         Pinheiro, Damaris Kirsh and Schuch, Nelson Jorge",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {} and {} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "Secondary effects of antarctic ozone hole in Southern Brazil for 
                         the year 2008, a case study",
                 year = "2009",
         organization = "IACS Joint Assembly.",
             abstract = "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), S{\~a}o 
                         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.",
  conference-location = "Montreal, Canada",
      conference-year = "July, 19-29",
             language = "en",
           targetfile = "Abstract IAMAS 2009_NADIARA-1.pdf",
        urlaccessdate = "12 maio 2024"
}