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Souza AMDE, Peres LV, Bittencourt GD, Pinheiro DK, Lopes BC, Anabor V, Leme NMP, Martins MPP, Silva RDA, Reis GCGD, Reis MAGD, Bageston JV, Bencherif H. Impacts of the antartic ozone hole influence events over southern Brazil in October 2015. AN ACAD BRAS CIENC 2023; 95:e20210528. [PMID: 37820118 DOI: 10.1590/0001-3765202320210528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 08/20/2021] [Indexed: 10/13/2023] Open
Abstract
The impact of the Antarctic Ozone Hole Influence over Southern Brazil in October 2015 was analyzed using daily mean data of the Total Column Ozone (TCO), Ultraviolet Index (UVI) and Radiative Cloud Fraction (RCF) from the Ozone Monitoring Instrument satellite instrument. Vertical profiles and fields of ozone content and Potential Vorticity available from the European Centre for Medium-Range Weather Forecast reanalysis, air masses backward trajectories from the HYbrid Single-Particle Lagrangian Integrated Trajectory model and channel 3 water vapor images from the Geostationary Operational Environmental Satellite GOES-13 were also analyzed. The five identified events showed an -7.4±2.3% average TCO reduction, leading to an +16.6±54.6% UVI increase even with a predominance of partly cloudy days. Other impacts were observed in the ozone profiles, where the most significant anomalies occurred from 650 K reaching 1.2 ppmv at the 850 K level. In the ozone fields at 700 K, the presence of a polar origin tongue was observed causing negatives anomalies between -0.2 and 0.4 ppmv in a transient system format forced with eastward-traveling Rossby waves passing through the Southern of Brazil and Uruguay.
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Affiliation(s)
- Alanna M DE Souza
- Universidade Federal do Oeste do Pará, Instituto de Engenharia e Geociências, Rua Vera Paz, s/n, Salé, 68040-255 Santarém, PA, Brazil
| | - Lucas V Peres
- Universidade Federal do Oeste do Pará, Instituto de Engenharia e Geociências, Rua Vera Paz, s/n, Salé, 68040-255 Santarém, PA, Brazil
| | - Gabriela D Bittencourt
- Programa de Pós-Graduação em Meteorologia, Universidade Federal de Santa Maria, Av. Roraima, 1000, Camobi, 97105-900 Santa Maria, RS, Brazil
| | - Damaris K Pinheiro
- Programa de Pós-Graduação em Meteorologia, Universidade Federal de Santa Maria, Av. Roraima, 1000, Camobi, 97105-900 Santa Maria, RS, Brazil
| | - Bibiana C Lopes
- Programa de Pós-Graduação em Meteorologia, Universidade Federal de Santa Maria, Av. Roraima, 1000, Camobi, 97105-900 Santa Maria, RS, Brazil
| | - Vagner Anabor
- Programa de Pós-Graduação em Meteorologia, Universidade Federal de Santa Maria, Av. Roraima, 1000, Camobi, 97105-900 Santa Maria, RS, Brazil
| | - Neusa M P Leme
- Coordenação Espacial do Nordeste, Instituto Nacional de Pesquisas Espaciais, Rua Carlos Serrano, 2073, Lagoa Nova, 59076-740 Natal, RN, Brazil
| | - Maria Paulete P Martins
- Coordenação Geral de Engenharia, Tecnologia e Ciências Espaciais, Instituto Nacional de Pesquisas Espaciais, Av. Astronautas, 1758, Jardim da Granja, 12227-010 São José dos Campos, SP, Brazil
| | - Rodrigo DA Silva
- Universidade Federal do Oeste do Pará, Instituto de Engenharia e Geociências, Rua Vera Paz, s/n, Salé, 68040-255 Santarém, PA, Brazil
| | - Gabriela C G Dos Reis
- Universidade Federal do Oeste do Pará, Instituto de Engenharia e Geociências, Rua Vera Paz, s/n, Salé, 68040-255 Santarém, PA, Brazil
| | - Marco Antônio G Dos Reis
- Universidade Federal do Oeste do Pará, Instituto de Engenharia e Geociências, Rua Vera Paz, s/n, Salé, 68040-255 Santarém, PA, Brazil
| | - José V Bageston
- Coordenação Espacial do Sul, Instituto Nacional de Pesquisas Espaciais, Av. Roraima, 1000, Camobi, 97105-340 Santa Maria, RS, Brazil
| | - Hassan Bencherif
- Laboratoire de l'Atmosphère et des Cyclones - LACy, Université de La Réunion, UMR 8105, 97744, Reunion Island, France
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