author = "Bresciani, Caroline and Bittencourt, Gabriela Dornelles and 
                         Bageston, Jos{\'e} Valentin and Pinheiro, Damaris Kirsch and 
                         Schuch, Nelson Jorge and Bencherif, Hassan and Leme, Neusa Maria 
                         Paes and Peres, Lucas Vaz",
          affiliation = "{Universidade Federal de Santa Maria (UFSM)} and {Universidade 
                         Federal de Santa Maria (UFSM)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Universidade Federal de Santa 
                         Maria (UFSM} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)} and {University of Reunion Island} and {Instituto Nacional 
                         de Pesquisas Espaciais (INPE)} and {Universidade Federal do Oeste 
                         do Par{\'a}}",
                title = "Report of a large depletion in the ozone layer over southern 
                         Brazil and Uruguay by using multi-instrumental data",
              journal = "Annales Geophysicae",
                 year = "2018",
               volume = "36",
               number = "2",
                pages = "405--413",
                month = "Mar.",
             keywords = "Atmospheric composition and structure (middle atmosphere  
                         composition and chemistry, instruments and techniques).",
             abstract = "Ozone is one of the chemical compounds that form part of the 
                         atmosphere. It plays a key role in the stratosphere where the 
                         ozone layer is located and absorbs large amounts of ultraviolet 
                         radiation. However, during austral spring (AugustNovember), there 
                         is a massive destruction of the ozone layer, which is known as the 
                         Antarctic ozone hole. This phenomenon decreases ozone 
                         concentration in that region, which may affect other regions in 
                         addition to the polar one. This anomaly may also reach 
                         midlatitudes; hence, it is called the secondary effect of the 
                         Antarctic ozone hole. Therefore, this study aims to identify the 
                         passage of an ozone secondary effect (OSE) event in the region of 
                         the city of Santa Maria RS (29.68\◦ S, 53.80\◦ W) by 
                         means of a multi-instrumental analysis using the satellites 
                         TIMED/SABER, AURA/MLS, and OMI-ERS. Measurements were made in 
                         S{\~a}o Martinho da Serra/RS Brazil (29.53\◦ S, 
                         53.85\◦ W) using a sounding balloon and a Brewer 
                         Spectrophotometer. In addition, the present study aims to describe 
                         and analyse the influence that this stratospheric ozone reduction 
                         has on temperatures presented by these instruments, including data 
                         collected through the radio occultation technique. The event was 
                         first identified by the AURA/MLS satellite on 19 October 2016 over 
                         Uruguay. This reduction in ozone concentration was found by 
                         comparing the climatology for the years 19961998 for the state of 
                         Rio Grande do Sul, which is close to Uruguay. This event was 
                         already observed in Santa Maria/RS-Brazil on 20 October 2016 as 
                         presented by the OMI-ERS satellite and the Brewer 
                         Spectrophotometer. Moreover, a significant decrease was reported 
                         by the TIMED/SABER satellite in Uruguay. On 21 October, the poor 
                         ozone air mass was still over the region of interest, according to 
                         the OMI-ERS satellite, data from the sounding balloon launched in 
                         Santa Maria/RS-Brazil, and measurements made by the AURA/MLS 
                         satellite. Furthermore, the influence of ozone on the stratosphere 
                         temperature was observed during this period. Despite a continuous 
                         decrease detected in height, the temperature should have followed 
                         an increasing pattern in the stratospheric layer. Finally, the 
                         TIMED/SABER and OMI-ERS satellites showed that on 23 October, the 
                         air mass with low ozone concentration was moving away, and its 
                         layer, as well as the temperature, in the stratosphere was 
                  doi = "10.5194/angeo-36-405-2018",
                  url = "http://dx.doi.org/10.5194/angeo-36-405-2018",
                 issn = "0992-7689",
             language = "en",
           targetfile = "bresciani_report.pdf",
        urlaccessdate = "10 abr. 2021"