Analysis of the horizontal variability of the Atmospheric Boundary Layer Height in the São Paulo city using ceilometer and elastic lidar data
Carregando...
Data
Data de publicação
2024
Autores IPEN
Orientador
Título da Revista
ISSN da Revista
Título do Volume
É parte de
É parte de
É parte de
É parte de
WORKSHOP ON LIDAR MEASUREMENTS IN LATIN AMERICA, 12th
Exportar
Resumo
Understanding the dynamics of the Atmospheric Boundary Layer Height (ABLH) is essential for
carrying out studies on pollutant dispersion and/or air quality, since this atmospheric variable acts
as a vertical limiter in the distribution of aerosols in the troposphere. Currently, ground-based remote
sensing equipment elastic lidar and Doppler, microwave radiometer, etc. has been widely used to
estimate the ABLH, providing results with high spatial and temporal resolution. However, such systems
have low vertical representation, since they only represent a specific point. In this scenario, seeking to
understand the vertical variability of the CLP in the city of São Paulo, this work presents a comparison
between the ABLH estimated from data from an elastic lidar system located at IPEN (23.560° S; 46.752°
W and a ceilometer, belonging to the Metroclima project (http://www.metroclima.iag.usp.br/, located
in the CIENTEC park (-23.649° S; 46.623° W)). Measurements taken between 2021 and 2023, from 9 am
to 6 pm, were compared, with the aim of evaluating only the convective period and also considering
only the period in which the Convective Boundary layer is above the overlap of both instruments.
The results demonstrate that in the absence of low clouds, the results obtained in both locations
only present differences arising from the topography. This result validates some previous studies that
were carried out, but with a shorter time interval. In addition, it was possible to validate the horizontal
representativity of ABLH estimated from lidar/ceilometer data in non-complex regions.
Como referenciar
MOREIRA, GREGORI de A.; SANTOS, AMANDA V. dos; LEONARDO, NOELE F.; ANDRADE, MARIA de F.; LANDULFO, EDUARDO. Analysis of the horizontal variability of the Atmospheric Boundary Layer Height in the São Paulo city using ceilometer and elastic lidar data. In: BARJA, BORIS (ed.); LANDULFO, EDUARDO (ed.); LOPES, FABIO J. da S. (ed.). In: WORKSHOP ON LIDAR MEASUREMENTS IN LATIN AMERICA, 12th, April 7-12, 2024, São Paulo, SP. Abstract... p. 82-82. Disponível em: https://repositorio.ipen.br/handle/123456789/48891. 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.