Tendências climáticas nas séries históricas hidrológicas da bacia do Rio Ibirapuitã

Abstract

Climate change constitutes a complex and urgent global scale challenge that must be faced by nations in order to control it in the best and fastest way possible. This study focuses in the Ibirapuitã river basin catchment area, investigating eventual climate trends in the historical data of rainfall precipitation and stream discharge, to identify patterns associated with climate change. The main objective is to apply two trend detection tests in distinct types of time series data of various collection gauges, and, when detected, calculate their magnitude to identify if there is an increase or decrease in the variable in question. The results revealed distinct patterns of climate trends in the Ibirapuitã river basin, indicating a certain influence of climatic conditions in the region, since in some of the gauges in which trends were detected are located next to urban areas of the basin. Keyword: rainfall precipitation; stream discharge; trends; climate change.