Assessing spatial variation of PBL height and aerosol layer aloft in São Paulo Megacity using simultaneously two lidar during winter 2019
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This work presents the use of two elastic lidar systems to assess the horizontal variation of
the PBL height (PBLH) and aerosol layer aloft in the São Paulo Megacity. These two lidars performed
simultaneous measurements 10.7 km apart in a highly urbanized and relatively flat area of São Paulo
for two winter months of 2019. The results showed that the PBLH differences display diurnal
variation that depends on the PBL during daytime growth phases. Cloud and sea breeze effects
control most of PBLH variation. In the absence of cloud and sea breeze, the maximum difference
(~300 m) occurs in the rapid development stage and is due to topographic effects. When the PBL
approaches its maximum daily value, it tends to level off with respect to the topography. In addition,
it was presented a method that combines elastic lidar (to detect an aerosol layer) and satellite data
(to classify such a layer from Aerosol Optical Depth (AOD) and Aerosol Index (AI) information) for
the detection of biomass burning events. This methodology demonstrated that the variations caused
by Biomass Burning in AOD and AI enable both the detection of aerosol plumes originating from
biomass burning and the identification of their origin.
Como referenciar
MOREIRA, GREGORI de A.; OLIVEIRA, AMAURI P. de; CODATO, GEORGIA; SANCHEZ, MACIEL P.; TITO, JANET V.; SILVA, LEONARDO A.H. e; SILVEIRA, LUCAS C. da; SILVA, JONATAN J. da; LOPES, FABIO J. da S.; LANDULFO, EDUARDO. Assessing spatial variation of PBL height and aerosol layer aloft in São Paulo Megacity using simultaneously two lidar during winter 2019. Atmosphere, v. 13, n. 4, p. 1-16, 2022. DOI: 10.3390/atmos13040611. Disponível em: http://repositorio.ipen.br/handle/123456789/33156. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.