This research aimed to estimate and analyze the conduct of the surface radiation balance (Rn) in the city of Manaus-AM from information provided by Landsat 5-TM. The use of remote sensing in this context aims to fill a gap in Brazil, where the available data of solar radiation is very limited and mostly refers to climatological averages. For this, we used the procedures of the method Algorithm for Land Surface Balance - SEBAL. Was obtained values of the components of Rn-based reflective radiance from the channels (1, 2, 3, 4, 5, and 7) and the thermal channel (6) 5-Landsat TM. For comparative purposes, the main types of land cover were analyzed in the study area: urban area, water bodies, vegetation and bare soil. The emissivity values did not differ significantly between the targets, the values of albedo and surface temperature were directly proportional to the targets while for values Rn and long-wave emission was observed an inverse relationship in which the surfaces with higher emissivity values showed lower Rn. So clear was the contrast between the natural surfaces (vegetation and water bodies) that showed the highest values of Rn, while the urban area and areas of exposed soil showed lower values due to low capacity and high thermal conductivity heat material associated therewith.Pages: 7974-798
