CLIMATE CHANGE IN THE TRIÂNGULO MINEIRO REGION – BRAZILl

Autores

  • Fabio de Oliveira Sanches Universidade Federal do Triângulo Mineiro http://orcid.org/0000-0001-5629-8350
  • Roberto Valmir da Silva Federal University of Fronteira Sul - UFFS
  • Ricardo Vicente Ferreira Federal University of Triângulo Mineiro - UFTM
  • Carlos Alberto Araújo Campos Federal University of Triângulo Mineiro - UFTM

DOI:

https://doi.org/10.5380/abclima.v21i0.51867

Palavras-chave:

Statistical Testing, Mann-Kendall, water resources, Uberaba city, Capinópolis city.

Resumo

In the summer of 2013/2014 the Brazil’s Southern region dealt with a severe crisis in water supply. Recent studies have shown that the low volume of rainfall was caused by an anomalous atmosphere blocking condition. Would this anomaly be a regional effect caused by climate change? To answer this question this study aims to analyze the pattern of temperature, rainfall and relative humidity in the Triângulo Mineiro region, located at the Middle Eastern part of Brazil. Temperature (maximum, average and minimum), rainfall and relative humidity data for the weather stations of the Uberaba (1961 – 2015) and Capinópolis (1971 – 2015) cities were submitted to a Mann-Kendall statistical test (MK) in order to investigate trends. The results showed significant positive trends in temperature for both stations. Likewise, the MK test identified a significant negative trend in rainfall and relative humidity for the month of October, thereby suggesting a delay in the return of the rainy season (spring/summer). Analysis of covariance (ANCOVA) showed that there is a relationship between the reduction of rainfall and relative humidity, and the increase in temperature. The rainy season delay severely affects the water resources availability, and combined with expansion of crop areas, population growth, and the increase in temperatures, which leads to the increase in evapotranspiration, worsens the water stress in the Triângulo Mineiro region.

Biografia do Autor

Fabio de Oliveira Sanches, Universidade Federal do Triângulo Mineiro

Doutor em Geografia. Professor de climatologia do curso de Geografia da UFTM.

Professor do Programa de Pós-graduação em Ciência e Tecnologia Ambiental (PPGCTA) da UFFS - campus Erechim.

Roberto Valmir da Silva, Federal University of Fronteira Sul - UFFS

Doctor in Environmental Engineering. Department of Environmental Engineering

Ricardo Vicente Ferreira, Federal University of Triângulo Mineiro - UFTM

Doctor in Geography. Department of Geography

Carlos Alberto Araújo Campos, Federal University of Triângulo Mineiro - UFTM

Doctor in Agronomy. Department of Geography

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Publicado

2017-12-21

Como Citar

Sanches, F. de O., Silva, R. V. da, Ferreira, R. V., & Campos, C. A. A. (2017). CLIMATE CHANGE IN THE TRIÂNGULO MINEIRO REGION – BRAZILl. Revista Brasileira De Climatologia, 21. https://doi.org/10.5380/abclima.v21i0.51867

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