Events of Influence of the Antarctic Ozone Hole Occurred in 2016 Over Southern Brazil

• Published in: Anuário do Instituto de Geociências
• Main Authors: Godinho dos Reis, Marco Antônio, Vaz Peres, Lucas, Dornelles Bittencourt, Gabriela, Kirsch Pinheiro, Damaris, Steffenel, Luiz Angelo, Bencherif, Hassan, da Silva, Rodrigo, Dias Nunes, Mateus, Bageston, José Valentin, Godinho dos Reis, Gabriela Cacilda
• Other Authors: Universidade Federal do Oeste do Pará Santarém (UFOPA), Universidade Federal de Santa Maria = Federal University of Santa Maria Santa Maria, RS, Brazil (UFSM), Laboratoire d'Informatique en Calcul Intensif et Image pour la Simulation (LICIIS), Université de Reims Champagne-Ardenne (URCA), Laboratoire de l'Atmosphère et des Cyclones (LACy), Institut national des sciences de l'Univers (INSU - CNRS)-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS)-Météo-France, Universidade Federal de Itajubá = Federal University of Itajubá, Instituto Nacional de Pesquisas Espaciais (INPE), Ministério da Ciência, Tecnologia e Inovação
• Format: Article in Journal/Newspaper
• Language: Portuguese
• Published: HAL CCSD 2021
• Subjects: Stratospheric ozone; Total ozone column; Potential vorticity; Ozônio estratosférico; Coluna total de ozônio; Vorticidade potencial; [SDU.OCEAN]Sciences of the Universe [physics]/Ocean; Atmosphere; Antarctic; The Antarctic; Boa; Antarc*
• Online Access: https://hal.univ-reims.fr/hal-03272756; https://hal.univ-reims.fr/hal-03272756/document; https://hal.univ-reims.fr/hal-03272756/file/36142-124980-1-PB.pdf; https://doi.org/10.11137/1982-3908_2021_44_36142

National audience The present study aims to analyze the stratospheric dynamics of the events of influence of the Antarctic Ozone Hole (BOA) that occurred over the South of Brazil in 2016. To reach this goal, days of reduction were used in the stratospheric ozone content based on Total Ozone Column (CTO) daily average data obtained from the Brewer spectrophotometer installed at the Southern Space Observatory (OES/INPE) (29.443752 ºS, 53.823084 ºW; 488.7 meters) and by the Ozone measuring instrument (Ozone Monitoring Instrument - OMI) onboard the NASA Aura satellite. For those days, stratosphere dynamics analyses were carried out through isentropic fields of Potential Vorticity (PV) at 600 and 700 K (Kelvin) levels of potential temperature, using the daily PV averages obtained from ERAInterim reanalysis of ECMWF (European Center for Medium-range Weather Forecast) to verify the origin of the ozone-poor air masses. Thus, the confirmation of the origin of these masses through the retroactive trajectories obtained using the HYSPLIT model (HYbrid Single-Particle Lagrangian Integrated Trajectory) of NOAA (National Oceanic and Atmospheric Administration). In addition, images of the ozone content of the OMI satellite were used as a complementary technique to verify the performance of BOA over SouthernBrazil. Then, 6 events of influence of the Antarctic Ozone Hole were identified over the South of Brazil in 2016, with an average reduction percentage of 11% of the CTO to monthly climatologies, confirmed by the passage of stratospheric polar filaments over the OES region, observed in the VP isentropic fields at the 600 and 700 K potential temperature levels as well as by the retroactive trajectories of polar origin obtained in the HYSPLIT model. O presente trabalho objetivou identificar e analisar a dinâmica estratosférica dos eventos de influência do Buraco de Ozônio Antártico (BOA) ocorridos sobre o Sul do Brasil no ano de 2016. Para atingir esse objetivo, buscou-se dias de redução no conteúdo de ozônio estratosférico ...