Analysis of climate time series

Authors

  • Valdeci José Costa UDESC
  • Matheus Ferreira UDESC
  • Marcos Tadeu Andrade Cordeiro UTFPR

Keywords:

climate change, trend, wheater, mathematical modeling.

Abstract

The purpose of this study was to time analyze the series of temperature and precipitation in the period from 1961 to 2011 from the EPAGRI/CIRAM weather station records located in Lages-SC, Brazil. The corrections of failures were made up of readings from the regional weighting method, and a proposed alternative model of linear regression with lowest MSE. The methods of Fourier Transform, Wavelet Transform and statistical test of Mann-Kendall were used. The presence of annual cycles for the mean monthly temperature and cycles ranging from 3 to 5 years for monthly accumulated precipitation were detected. There is a positive trend in the pattern of monthly cumulative rainfall from the El Niño of 1983, according to the Mann-Kendall test, and in minimum and maximum temperatures in some months of both absolute and relative to the monthly average.

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Author Biography

Valdeci José Costa, UDESC

Pesquisador do departamento de Engenharia Ambiental do Cav-UDESC, com área de atuação em modelagem matemática.

Published

2015-08-13

How to Cite

COSTA, Valdeci José; FERREIRA, Matheus; CORDEIRO, Marcos Tadeu Andrade. Analysis of climate time series. Revista de Ciências Agroveterinárias, Lages, v. 14, n. 2, p. 169–177, 2015. Disponível em: https://www.revistas.udesc.br/index.php/agroveterinaria/article/view/5579. Acesso em: 2 dec. 2024.

Issue

Section

Research Article - Science of Soil and Environment