Climatological Study on Cyclone Genesis and Tracks in Southern Brazil from 1979 to 2019
This study investigates cyclone dynamics and impacts in the Southwestern Atlantic, with a focus on their effects on southern Brazil. As climate change intensifies coastal vulnerability, understanding cyclone behavior has become essential. Using the TRACK and cycloTRACK algorithms, we examined cyclon...
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MDPI AG
2025-01-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/16/1/92 |
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| author | Bruna Alves Oliveira Destéfani Micael Fernando Broggio Carlos Alberto Eiras Garcia |
| author_facet | Bruna Alves Oliveira Destéfani Micael Fernando Broggio Carlos Alberto Eiras Garcia |
| author_sort | Bruna Alves Oliveira Destéfani |
| collection | DOAJ |
| description | This study investigates cyclone dynamics and impacts in the Southwestern Atlantic, with a focus on their effects on southern Brazil. As climate change intensifies coastal vulnerability, understanding cyclone behavior has become essential. Using the TRACK and cycloTRACK algorithms, we examined cyclone trajectories and cyclogenesis densities from 1979 to 2019 to analyze seasonal and spatial patterns shaped by large-scale atmospheric circulations, including the Antarctic Oscillation (AAO). The analysis explores trends in cyclone activity across various temporal and spatial scales, identifying key regions of cyclogenesis and trajectory density. Results indicate that the cycloTRACK algorithm is more effective at tracking more intense and consistent cyclones, excluding weaker systems. Seasonal patterns suggest variability in cyclone formation, likely associated with atmospheric instability and ocean–atmosphere interactions. While trends reveal an increase in cyclone passages in southern Brazil, these systems are strongly associated with extreme climatic events in the region, including coastal storms, intense precipitation, strong winds, and high waves. By clarifying cyclone dynamics and seasonal patterns, this study enhances our understanding of cyclone behavior and contributes to improved assessments of regional climate resilience in southern Brazil. |
| format | Article |
| id | doaj-art-2d810e118506442c91a3977a27a463c5 |
| institution | Kabale University |
| issn | 2073-4433 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj-art-2d810e118506442c91a3977a27a463c52025-01-24T13:22:00ZengMDPI AGAtmosphere2073-44332025-01-011619210.3390/atmos16010092Climatological Study on Cyclone Genesis and Tracks in Southern Brazil from 1979 to 2019Bruna Alves Oliveira Destéfani0Micael Fernando Broggio1Carlos Alberto Eiras Garcia2Sistema de Monitoramento da Costa Brasileira (SiMCosta), Instituto de Oceanografia, Universidade Federal do Rio Grande, Rio Grande 19600-390, RS, BrazilSistema de Monitoramento da Costa Brasileira (SiMCosta), Instituto de Oceanografia, Universidade Federal do Rio Grande, Rio Grande 19600-390, RS, BrazilSistema de Monitoramento da Costa Brasileira (SiMCosta), Instituto de Oceanografia, Universidade Federal do Rio Grande, Rio Grande 19600-390, RS, BrazilThis study investigates cyclone dynamics and impacts in the Southwestern Atlantic, with a focus on their effects on southern Brazil. As climate change intensifies coastal vulnerability, understanding cyclone behavior has become essential. Using the TRACK and cycloTRACK algorithms, we examined cyclone trajectories and cyclogenesis densities from 1979 to 2019 to analyze seasonal and spatial patterns shaped by large-scale atmospheric circulations, including the Antarctic Oscillation (AAO). The analysis explores trends in cyclone activity across various temporal and spatial scales, identifying key regions of cyclogenesis and trajectory density. Results indicate that the cycloTRACK algorithm is more effective at tracking more intense and consistent cyclones, excluding weaker systems. Seasonal patterns suggest variability in cyclone formation, likely associated with atmospheric instability and ocean–atmosphere interactions. While trends reveal an increase in cyclone passages in southern Brazil, these systems are strongly associated with extreme climatic events in the region, including coastal storms, intense precipitation, strong winds, and high waves. By clarifying cyclone dynamics and seasonal patterns, this study enhances our understanding of cyclone behavior and contributes to improved assessments of regional climate resilience in southern Brazil.https://www.mdpi.com/2073-4433/16/1/92extratropical cyclonesatmospheric circulationclimatic variability |
| spellingShingle | Bruna Alves Oliveira Destéfani Micael Fernando Broggio Carlos Alberto Eiras Garcia Climatological Study on Cyclone Genesis and Tracks in Southern Brazil from 1979 to 2019 Atmosphere extratropical cyclones atmospheric circulation climatic variability |
| title | Climatological Study on Cyclone Genesis and Tracks in Southern Brazil from 1979 to 2019 |
| title_full | Climatological Study on Cyclone Genesis and Tracks in Southern Brazil from 1979 to 2019 |
| title_fullStr | Climatological Study on Cyclone Genesis and Tracks in Southern Brazil from 1979 to 2019 |
| title_full_unstemmed | Climatological Study on Cyclone Genesis and Tracks in Southern Brazil from 1979 to 2019 |
| title_short | Climatological Study on Cyclone Genesis and Tracks in Southern Brazil from 1979 to 2019 |
| title_sort | climatological study on cyclone genesis and tracks in southern brazil from 1979 to 2019 |
| topic | extratropical cyclones atmospheric circulation climatic variability |
| url | https://www.mdpi.com/2073-4433/16/1/92 |
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