2021
DOI: 10.1590/1809-4430-eng.agric.v41n1p47-55/2021
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Time Series Trends of Streamflow and Rainfall in the Santo Antônio River Basin, Brazil

Abstract: Detecting trends in streamflow and rainfall series can have great significance for proper water resource management. Thus, the objective of this study was to analyze the trends of historical streamflow and rainfall series using nonparametric statistical tests. A historical series of pluviometric and fluviometric gauges, which belong to the hydrometeorological network of the Brazilian Water National Agency in the Santo Antônio River Basin, Brazil, from 1985 to 2014 were used. By applying statistical tests, it w… Show more

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Cited by 7 publications
(4 citation statements)
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“…This study was carried out in the municipality of Piracicaba, São Paulo State, Brazil, located at a critical point of transition of general circulation currents, with varied climate characteristics. This variability causes two distinct periods: a hotter and rainy period from November to March and a less hot and drier period from May to August (Ferreira et al, 2021). Wolff et al (2014) state that the region has tropical trends, that is, mean annual temperatures vary around 20 °C, reaching a mean of 23 °C in the hottest months of the year and 17 °C in the coldest months.…”
Section: Area Of Interest For Carrying Out the Studymentioning
confidence: 99%
“…This study was carried out in the municipality of Piracicaba, São Paulo State, Brazil, located at a critical point of transition of general circulation currents, with varied climate characteristics. This variability causes two distinct periods: a hotter and rainy period from November to March and a less hot and drier period from May to August (Ferreira et al, 2021). Wolff et al (2014) state that the region has tropical trends, that is, mean annual temperatures vary around 20 °C, reaching a mean of 23 °C in the hottest months of the year and 17 °C in the coldest months.…”
Section: Area Of Interest For Carrying Out the Studymentioning
confidence: 99%
“…Finally, the Sen Slope test [48,49] was used to measure the magnitude of the trends. The tests were applied considering a significance level of 5% [50,51].…”
Section: Monthly Climatic Water Balance (Cwb)mentioning
confidence: 99%
“…No trabalho de Cecílio et al (2021), realizado na bacia do rio Itapemirim, os autores encontraram a maioria dos pontos de mudança na década de 1990, com redução da vazão média nos meses do período seco da bacia e apontaram o crescimento populacional como o principal fator de alteração. Ferreira et al (2021), por outro lado, identificaram mudanças no regime de vazões mínimas em uma estação fluviométrica nessa década em uma bacia próxima. Como possíveis explicações para essas alterações, os autores apontaram a influência das modificações no uso e cobertura da terra e aumento da demanda hídrica na bacia.…”
Section: Análise Dos Meses/anos De Mudança Nas Séries De Vazãounclassified