Análise da variabilidade climática do município de Garanhuns, Pernambuco – Brasil (Analysis of climate variability in the city of Garanhuns, Pernambuco - Brazil)
DOI:
https://doi.org/10.26848/rbgf.v9.2.p353-367Keywords:
clima, precipitação, ClimapAbstract
A investigação das tendências climáticas e das possíveis mudanças do comportamento climático associado aos registros de alterações climáticas globais auxilia na redução da vulnerabilidade às oscilações do regime de precipitação. Este trabalho teve como objetivo avaliar as tendências climáticas da precipitação pluviométrica e dos índices de extremos climáticos no município de Garanhuns, Pernambuco - Brasil. Foram utilizados dados diários de precipitação no período de 1961 a 2014, fornecidos pelo Instituto Nacional de Meteorologia-INMET. Para atingir o objetivo proposto foi utilizado o software Climap para analisar a tendência da precipitação e dos índices de extremos climáticos, assim como o teste sequencial de Mann-Kendall para verificar o ano aproximado em que as tendências tiveram início. Os resultados indicaram que não houve tendências nas séries dos totais anuais e nos índices de extremos de precipitação. Porém, constatou-se uma possível alteração na série de precipitação total anual a partir de 2003, e a predominância da alta variabilidade anual da precipitação pluviométrica na região.
ABSTRACT
The investigation of climate trends and possible changes in climate behavior associated with records of global climate change helps in reducing vulnerability to fluctuations in precipitation regime . This study aimed to assess climate trends of rainfall and climatic extremes indices in the city of Garanhuns , Pernambuco – Brazil. Daily rainfall data were used from 1961 to 2014 , provided by the National Institute of Meteorology - INMET . To achieve purpose we used the CLIMAP software to analyze the trend in rainfall and indices of extremes climatic, as well as the sequential Mann- Kendall to check the trend. The results indicated that there was no trend in the series of indexes of extremes climatic and the total annual precipitation. However , there was a possible change in annual rainfall from 2003 , and high annual variability of rainfall in the region.
Keywords: climate, rainfall, Climap.
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Copyright (c) 2016 Vanessa Vasconcelos Barbosa, Weronica Meira de Souza, Josiclêda Dominicano Galvíncio, Valéria Sandra de Oliveira Costa
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