Estimativa dos componentes do balanço de energia em diferentes usos da terra na Bacia de Contribuição da Represa de Chapéu D’Uvas Juiz de Fora 2020

Abstract

One way of assessing ecosystem responses to environmental conditions is through energy balance. Changes in coverage and land use can cause changes in the energy balance on the land’s surface, affect evapotranspiration rates and even modify the microclimate. Remote sensing tools have shown good results when providing information at different scales. Estimates of the energy balance components were performed using the SEBAL algorithm (Surface Energy Balance Algorithm for Land) and Landsat 5 and 8 images, between the years 1985 to 2016, for the dry period. SEBAL was chosen because it requires little data collected in the field, allowing the study of more extensive areas, where little data is available. From the results it was possible to confirm that the components of the energy balance and the actual daily evapotranspiration corresponded to the different types of soil cover. The SEBAL algorithm showed satisfactory performance in estimating energy flows and actual daily evapotranspiration and can be used in areas where there is a shortage of meteorological data.