THE URBAN CLIMATE IN FEIRA DE SANTANA – BA THROUGH SURFACE TEMPERATURE AND NORMALIZED DIFFERENCE VEGETATION INDEX - NDVI

Abstract

The use of remote sensing techniques for urban climate studies has advanced over recent years. In this sense, the objective of this study was to identify the influence exerted by the different land uses and coverages in the thermal structure of the urban surface in Feira de Santana- BA. For elaboration of the map of the surface temperature were used calculations for conversion of digital values of the image of Landsat 8 satellite to temperature in degrees Celsius (°C) in the software Idrisi. The vegetation mapping was prepared by the calculation of the vegetation index of normalized difference (NDVI), on the same software. Analyzing the results it was possible to perceive that the  biggest surface temperature are  directly related to land use, and  that the vegetation is fundamental to decrease those temperatures. Thereby,  remote sensing techniques are very useful for urban climate studies.