Identificação de classes de uso do solo em perímetro irrigado do semi-árido baiano utilizando-se produtos do CBERS-4

The city of Rodelas is a Brazilian municipality located in the north of Bahia, located on the right bank of the São Francisco river. The municipality currently has a strong participation of irrigated agriculture in its economy, highlighting the culture of the Côco-da-bahia. For purposes of planning and advancement of areas and land occupation, one of the alternatives is currently the use of satellite images. Like the CBERS project, Sino-Brazilian satellite, the access to orbital images of high spatial resolution has made still more accessible to the society images with these characteristics. The quality of the CBERS-4 (Sino-Brazilian Satellite of Earth Resources 4) products improved significantly compared to previous versions, demonstrating this in results when compared with other sensors of equal spatial and spectral resolution. Thus, by means of maximum likelihood classification, the availability of images of different spatial and spectral resolutions by the embedded sensors was based on the principle of evaluating the potential of identification and separability of the classes of use and occupation of the soil, the different sensors On board this platform. The level of detail and definition of the CBERS image is very good, making it present results equivalent to other sensors of equal spatial and spectral resolution. The images classified had a high index of global accuracy, but this did not prevent a high rate of confusion, mainly between the Solo Exposure and Urban classes