This article addresses the analysis of topography interference in the spectral behavior of targets present in multispectral images, fused by the Brovey method. For this, areas with targets, LiDAR data (Light Detection And Ranging) were used to obtain the terrain data (Digital Terrain Models, in scale 1: 5000, from the Pernambuco Three-dimensional Program), multispectral satellite images obtained from the Operational sensor Land Imager (OLI) of Landsat 8, and the free software QGIS. The results show a relation of the variation of the reflectance values according to the topography of the terrain and the position of the Sun in relation to the imaged area. Avaliação da Influência da Topografia Sobre o Comportamento Espectral de Alvos Semelhantes na Integração de Dados LiDAR e do Sensor OLI ResumoEste artigo aborda a análise da interferência da topografia no comportamento espectral dos alvos presentes em imagens multiespectrais, fusionados pelo método de Brovey. Para isso foram usadas áreas com alvos, dados LiDAR (Light Detection And Ranging) para obter os dados do terreno (Modelos Digitais de Terreno, em escala 1:5000, do Programa Pernambuco Tridimensional), imagens de satélite multiespectrais obtidas a partir do sensor Operational Land Imager (OLI) do Landsat 8, e o Software livre QGIS. Os resultados demonstram relação da variação dos valores de reflectância em função da topografia do terreno e da posição do Sol em relação à área imageadas.
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