ARTÍCULO
TITULO

Evaluation rainfall changes in the state of São Paulo, Brazil, from 1888 to 1993

João Lima Sant'Anna Neto (Author)    

Resumen

This article discusses rainfall variability, periodicity, cyclicality and tendencies in the state of São Paulo over the last 106 years as a contribution to the study of regional climatic changes. Total monthly rainfall data collected at 396 pluviometric stations of the Water and Power Department (WPD - DAEE) were treated statistically with special emphasis on moveable averages calculations. The results led to the conclusion that the period analyzed presented a regular periodicity and cyclicality between rainy and dry seasons, and that there was a significant increase (10% to 12%) of rainfall in almost all parts of the state of São Paulo over the period investigated.

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