South Atlantic Convergence Zone: a systematic and discourse review

Authors

DOI:

https://doi.org/10.55761/abclima.v36i21.19013

Keywords:

SACZ. Disasters. Literature review. Precipitation. Impact.

Abstract

The South Atlantic Convergence Zone (SACZ) is the main atmospheric system responsible for summer precipitation in central Brazil, intrinsically linked to precipitation extremes and hydrometeorological disasters. Within this context, the present article aims to present the main contributions of recent literature on this topic, considering aspects such as climatic variability, impacts, and predictability. The methodology included a search for keywords in peer-reviewed articles from the CAPES database, covering the period from 2018 to 2023. Through this process, 21 articles were selected. The results indicate that most studies associate the SACZ with variability, identifying distinct atmospheric circulation patterns at different atmospheric levels. The article also examines the geographical distribution of the studies, highlighting the predominance of Brazilian authors. The discussion of the results presented in these articles revealed significant trends in atmospheric circulation patterns and the temporal distribution of SACZ episodes, which account for 56% of the observed precipitation in March in southeastern Brazil. These episodes are associated with extreme events and disasters such as floods and landslides. Thus, the study contributes to understanding the mechanisms that govern the SACZ and its impacts, providing a solid foundation for future investigations and the enhancement of public policies aimed at mitigating natural disasters related to this climatic phenomenon, emphasizing a comprehensive and multidisciplinary approach.

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Author Biography

Ian Verdan, Programa de Pós-Graduação em Ciência do Sistema Terrestre, Instituto Nacional de Pesquisas Espaciais (INPE)

Doutorando no Programa de Pós-Graduação em Ciência do Sistema Terrestre do Instituto Nacional de Pesquisas Espaciais, INPE. Mestre em Geografia Física pela Universidade de São Paulo, USP, com ênfase em Climatologia e Meteorologia. Possui graduação em Geografia (licenciatura e bacharelado) pela Universidade do Estado do Rio de Janeiro, UERJ. Estagiou na Prefeitura Municipal de Duque de Caxias (PMDC), atuando na área de Planejamento Urbano através da análise quantitativa dos distintos usos do solo. Foi bolsista no grupo de pesquisas Núcleo de Estudos de Geografia Fluminense da Universidade do Estado do Rio de Janeiro, e foi integrante do Projeto de Extenção Trilha Sensorial Piloto: Inclusão Social e Educação Ambiental na Floresta, no qual trabalhava em equipe para a confecção de mapas táteis a serem utilizados por alunos com deficiência visual. Ainda foi monitor da disciplina Climatologia I e Pedologia II, ambos na UERJ.

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Published

05/02/2025

How to Cite

Verdan, I. (2025). South Atlantic Convergence Zone: a systematic and discourse review. Brazilian Journal of Climatology, 36(21), 313–339. https://doi.org/10.55761/abclima.v36i21.19013

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