ANALYSIS OF PRECIPITATION DATA FOR EVALUATION OF DRY AND RAINY EVENTS ON THE NORTH COAST OF THE STATE OF BAHIA

Abstract

This work aimed to contribute to the understanding of the climatic patterns of the North Coast of the State of Bahia and to the development of strategies for adaptation and mitigation of dry and rainy climatic events. Data on rainfall, temperature, and relative humidity from 1991 to 2020 were analyzed. To carry out the analyses and to fill in the gaps in the data of the historical series, through kriging, the GS+ geostatistical analysis program was used. The results of this work showed that, even with the occurrence of climate change, it was not possible to observe significant changes in the precipitation pattern in the region, but with the analysis of the temperature an increase was observed in the winter months and in the summer months. From July 1991 to 2008 the temperature ranged from 21.0 to 22.2 °C, approximately, however, from 2009 onwards there was a continuous increase in temperature, reaching 23.0°C in 2020. Regarding humidity, there was a significant decrease in the winter months, from 91.0% in July 1991 to 89.0% in July 2020. Such results were related to the Sustainable Development Goals - SDG 06 drinking water and sanitation and 13 action against global climate change.