Identification of entrance of burning plumes and main affected areas in southern Brazil
DOI:
https://doi.org/10.5902/2179460X12806Keywords:
MODIS, Aerosol Optical Thickness, biomass burningAbstract
http://dx.doi.org/10.5902/2179460X12806
Southern Brazil is influenced by incoming biomass burning plumes from Northern and Midwest of Brazil. The aim of this work is to identify incoming biomass burning aerosol plumes in southern Brazil as well as the periods with the higher values of Aerosol Optical Thickness (AOT) and the areas more affected by attenuator aerosols in Southern Brazil. The MODIS (MODerate- Resolution Imaging Spectroradiometer) sensor data onboard of AQUA satellite, in the 0,55μm wavelength for AOT and from 0,47 to 0,66μm for Angstrom Exponent (AE), were used from 2002 to 2011. It was observed that the predominant aerosol on Southern Brazil´s atmosphere were low radiation attenuators (with low values of AOT). However, there are cases with high AOT values indicating the presence of particles of radiation attenuators. Furthermore it was observed that the cases of high AOT values occurred between winter and spring, mostly at the northwest of the studied area.Downloads
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