RAINFALL IN CERES - GO (BRAZIL):

seasonal characteristics

Abstract

The pluviometric patterns of a given region can directly impact several sectors of society, such as agro-industrial and socio-economic activities. Thus, the objective of the present study was to analyze the temporal variability of rainfall in the municipality of Ceres-GO, Brazil, in order to search for variations in precipitation patterns, as well as understand their seasonality. Initially, the rainfall data provided by the National Water Agency (ANA) from 1972 to 2015 were acquired, after which the homogeneity of the data and gaps in the historical series were analyzed. For the analysis of the temporal/seasonal variability of rainfall in Ceres, graphs of the annual and monthly pluviometric totals were generated. Subsequently, boxplot graphs and dendrograms were drawn up using Ward’s method and the Euclidean distance as a separator, as well as the descriptive statistics of the rains during the studied period. It was concluded that the rains in the Ceres region have a strong seasonal component, characterized by a dry season (April to September) and a rainy season (October to March), typical of the Cerrado areas of the Central Plateau. Despite the occurrence of pluviometric variations during this period, high deviations were occasional.