Variability, trends and extreme precipitation events in Goiânia - GO

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DOI:

https://doi.org/10.5216/ag.v19i1.79957

Abstract

Although Goiânia is a relatively young and medium-sized city, it has faced recurring problems caused by both excess and scarcity of rainfall. In the context of widespread, accelerated and historically unprecedented climate change, this study analyzed the variability, trends and occurrence of extreme rainfall events in Goiânia between 1961 and 2023. Using daily and monthly data compiled from the National Meteorological Institute's conventional station, the behavior of annual, seasonal and monthly rainfall variability was investigated, and trends and the occurrence of extreme events were evaluated based on statistical indices.  The data points to a usual concentration of rainfall in seven months and an inherent annual and seasonal variability in rainfall, which is altered from time to time in the context of exceptionally dry or rainy years. There is also the possibility of a greater occurrence of extreme daily events and an increase in the period of drought, leading to recurring problems for the population.

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Published

2025-04-20

How to Cite

OLIVEIRA, Hernane Fernandes Sousa de; NASCIMENTO, Diego Tarley Ferreira. Variability, trends and extreme precipitation events in Goiânia - GO . Ateliê Geográfico Journal, Goiânia, v. 19, n. 1, p. 333–362, 2025. DOI: 10.5216/ag.v19i1.79957. Disponível em: https://revistas.ufg.br/atelie/article/view/79957. Acesso em: 8 feb. 2026.

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Articles