Tocantins State Climatology – Brazil
DOI:
https://doi.org/10.5752/P.2318-2962.2019v29n59p1161Keywords:
rainfall; temperature; hydric balance; climate classificationAbstract
This paper describes research results dedicated to the evaluation of the climatic characteristics of the State of Tocantins, especially regarding the factors temperature, rainfall and other variables of the climatological water balance. Regarding rainfall, daily data provided by the Agência Nacional de Águas (ANA) were adopted from rainfall stations located in and around Tocantins territory for a period of 32 years (1985 to 2016). The air temperature data were obtained from the Reanalysis project of the National Centers for Environmental Prediction / National Center for Atmospheric Research (NCEP / NCAR). The water balance was calculated using the methodology proposed by Thornthwaite and Mather (1955), adopting the available ground water capacity (CAD) of 100 mm as the default value. Climate types were identified according to the classification proposals of Köppen and Geiger (1928) and Thornthwaite (1948). The results are expected to be useful for territorial management and scientific research in various areas of knowledge.
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