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Proceedings Paper

Lidar observation campaign of sugar cane fires and industrial emissions in the State of São Paulo, Brazil
Author(s): E. Landulfo; Maria Paulete M. P. Jorge; Gerhard Held; Roberto Guardani; Juliana Steffens; Sergio dos Anjos F. Pinto; Iara R. Andre; Gilberto Garcia; F. J. S. Lopes; Glauber L. Mariano; Renata F. da Costa; Patricia F. Rodrigues
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Paper Abstract

Brazil has an important role in the biomass burning, with the detection of approximately 100,000 burning spots in a single year (2007). Most of these spots occur in the southern part of the Amazon basin during the dry season (from August to november) and these emissions reach the southeast of the country, a highly populated region and with serious urban air pollution problems. With the growing demand on biofuels, sugarcane is considerably expanding in the state of Sao Paulo, being a strong contributor to the bad air quality in this region. In the state of Sao Paulo, the main land use are pasture and sugarcane crop, that covers around 50% and 10% of the total area, respectively. Despite the aerosol from sugarcane burning having reduced atmospheric residence time, from a few days to some weeks, they might get together with those aerosol which spread over long distances (hundreds to thousands of kilometers). In the period of June through February 2010 a LIDAR observation campaign was carried in the state of Sao Paulo, Brazil, in order to observe and characterize optically the aerosols from two distinct sources, namely, sugar cane biomass burning and industrial emissions. For this purpose 2 LIDAR systems were available, one mobile and the other placed in a laboratory, both working in the visible (532 nm) and additionally the mobile system had a Raman channel available (607 nm). Also this campaign counted with a SODAR, a meteorological RADAR specially set up to detect aerosol "echoes" and gas-particle analyzers. To guarantee a good regional coverage 4 distinct sites were available to deploy the instruments, 2 in the near field of biomass burning activities (Rio Claro and Bauru), one for industrial emissions (Cubatao) and others from urban sources (Sao Paulo). The whole campaign provide the equivalent of 30 days of measurements which allowed us to get aerosol optical properties such as backscattering/extinction coefficients, scatter and LIDAR ratios, those were used to correlate with air quality and meteorological indicators and quantities. In this paper we should focus on the preliminary results of the Raman LIDAR system and its derived aerosol optical quantities.

Paper Details

Date Published: 2 November 2010
PDF: 8 pages
Proc. SPIE 7832, Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing VI, 78320I (2 November 2010); doi: 10.1117/12.866078
Show Author Affiliations
E. Landulfo, Instituto de Pesquisas Energéticas e Nucleares (Brazil)
Maria Paulete M. P. Jorge, Ctr. de Previsão de Tempo e Estudos Climáticos (Brazil)
Gerhard Held, Univ. Estadual Paulista Júlio de Mesquita Filho (Brazil)
Roberto Guardani, Escola Politécnica da Univ. de São Paulo (Brazil)
Juliana Steffens, Escola Politécnica da Univ. de São Paulo (Brazil)
Sergio dos Anjos F. Pinto, Univ. Estadual Paulista - Rio Claro (Brazil)
Iara R. Andre, Univ. Estadual Paulista - Rio Claro (Brazil)
Gilberto Garcia, Univ. Estadual Paulista - Rio Claro (Brazil)
F. J. S. Lopes, Instituto de Pesquisas Energéticas e Nucleares (Brazil)
Glauber L. Mariano, Ctr. de Previsão de Tempo e Estudos Climáticos (Brazil)
Renata F. da Costa, Instituto de Pesquisas Energéticas e Nucleares (Brazil)
Patricia F. Rodrigues, Instituto de Pesquisas Energéticas e Nucleares (Brazil)


Published in SPIE Proceedings Vol. 7832:
Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing VI
Upendra N. Singh; Gelsomina Pappalardo, Editor(s)

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