The Brazilian Amazon is a large territory, where different weather systems act, contributing to non‐homogeneity of the rainfall seasonal distribution in the region. The aim of this study is to determine sub‐regions of homogeneous precipitation in the Amazon, linking them to the main atmospheric systems that affect the rainfall in the region. For this, hierarchical cluster analysis was applied on a data set composed by 305 rain gauges. The results suggest that the Brazilian Amazon has six pluvial homogeneous regions.
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Santos et al. (2014) studied this question.
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