WATER BALANCE AND KÖPPEN CLIMATE CLASSIFICATION AND THORNTHWAITE IN THE MUNICIPALITY OF FEIRA DE SANTANA (BA)

Abstract

The study of meteorology are based on atmospheric phenomena, your behavior and physical, chemical and dynamic interactions with the other elements of the Earth's surface. The aim of this study was to characterize climatically the municipality of Feira de Santana (BA), as to the availability of water for farming, using data provided by INMET, which were processed through the climatic water balance method, from which he obtained the water index, index of dryness and moisture content, and aid the sort keys of Thornthwaite. The water balance showed that the municipality features an ETP of 1431.7 mm year-1, ETR to 720.7 mm year-1, DEF of 711.0 mm year-1 and EXC equal to zero. The climatic type through the methodology of Köppen's "wing", megatérmico with winter rains and hot summers, whereas Thornthwaite's C1w2A ' a ', Sub-humid climate with dry off excess summer, megatérmico and potential evapotranspiration in summer concentration equal to 31.2%. The municipality of Feira de Santana presents a high ETP, influenced by high temperatures. The period of lowest water deficiency is recorded in the months of may, June and July, being suitable for dryland crops. The Thornthwaite climate classification method offers greater detail than the Köppen.