Effects of emissions on current and future rainfall patterns in southeast Brazil

• Processo: 08/58073-5
• Modalidade de apoio: Auxílio à Pesquisa - Programa de Pesquisa sobre Mudanças Climáticas Globais - Temático
• Data de Início da vigência: 01 de junho de 2009
• Data de Término da vigência: 31 de maio de 2014
• Área do conhecimento: Ciências Exatas e da Terra - Química - Química Analítica
• Acordo de Cooperação: CNPq - Pronex
• Pesquisador responsável: Arnaldo Alves Cardoso
• Beneficiário: Arnaldo Alves Cardoso
• Instituição Sede: Instituto de Química (IQ). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brasil
• Pesquisadores principais: Bernardino Ribeiro de Figueiredo ; LILIAN ROTHSCHILD FRANCO DE CARVALHO
• Bolsa(s) vinculada(s): 13/21555-0 - Efeito das emissões de aerossol no presente e futuro dos padrões das emissões da chuva, BP.PD; 11/16457-4 - Determinação de acetaldeído e formaldeído em água de chuva e suas correlações com carbono orgânico dissolvido de uma região canavieira, BP.MS; 10/18795-1 - Efeito das emissões atuais e futuras no padrão de chuvas da Região Sudeste do Brasil, BP.TT; 10/50236-2 - A utilização de levoglucosan como marcador de queima de biomassa no material particulado de uma região canavieira do estado de São Paulo, BP.DR
• Assunto(s): Biocombustíveis Ciclo hidrológico Precipitação Mudança climática
• Palavra(s)-Chave do Pesquisador: Agriculture | Biofuel Production | Biomass Burning | Hydrological Cycle | Lightning Frequency | Precipitation
• Publicação FAPESP: https://www.fapesp.br/pfpmcg/pfpmcg_cardoso.pdf

Resumo

This project will be the first observation-based investigation of the climate change feedbacks involving precipitation, cloud formation and aerosols in the South American rural subtropics (southeast Brazil). The region is a natural laboratory for such a study, due to large differences in seasonal weather patterns, with distinct wet and dry periods, and well-defined sources of anthropogenic aerosols, especially agricultural biomass burning. Previous work has reported intensification of storms over large cities, due to the presence of aerosols of anthropogenic origin; here we will investigate the extent to which a similar mechanism operates in rural areas, and how it might affect the distribution and intensity of precipitation. Future changes in the nature of the region's atmospheric aerosol - the direct and indirect aerosol climate forcing are likely to diminish here, due to progressive restrictions on biomass burning - will affect this mechanism, and therefore influence the hydrological cycle, with consequences for water resources in agriculture, hydroelectricity and industrial and domestic supply. Measurements in central São Paulo State will identify coherences between the frequency, distribution and intensity of precipitation (using S-band Doppler radars), aerosol number concentrations and size distributions, the frequency of cloud to ground electrical discharges, and cloud droplet effective radius. Intensive experiments will then link aerosol physical properties with particle chemistry. Knowledge of particle chemistry will be used to identify aerosol sources (using receptor modeling). We will then be able to build conceptual models describing the influence of different aerosol classes on precipitation, and the impact of human activities. The influence of agricultural production methods on precipitation patterns will be investigated, with special emphasis on the pre-harvest burning of sugar cane, which is of interest from both climatic and human heath perspectives. (AU)

Publicações científicas

(14)

(Referências obtidas automaticamente do Web of Science e do SciELO, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores)

SOUZA, MICHELE L.; ALLEN, ANDREW G.; CARDOSO, ARNALDO A.. Understanding aerosol formation mechanisms in a subtropical atmosphere impacted by biomass burning and agroindustry. ATMOSPHERIC RESEARCH, v. 183, p. 94-103, JAN 1 2017. (08/58073-5)

CAETANO-SILVA, L.; ALLEN, A. G.; LIMA-SOUZA, M.; CARDOSO, A. A.; CAMPOS, M. L. A. M.; NOGUEIRA, R. F. P.. An analysis of diurnal cycles in the mass of ambient aerosols derived from biomass burning and agro-industry. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, v. 118, n. 15, p. 8675-8687, AUG 16 2013. (08/58073-5)

PATRÍCIA LOPES DE OLIVEIRA; BERNARDINO RIBEIRO FIGUEIREDO; ARNALDO ALVES CARDOSO; RÔMULO SIMÕES ANGÉLICA. Elementos traço em material particulado atmosférico de uma região agroindustrial do sudeste do Brasil. Química Nova, v. 36, n. 4, p. 533-539, 2013-00-00. (08/58073-5)

URBAN, ROBERTA CERASI; LIMA-SOUZA, MICHELE; CAETANO-SILVA, LETICIA; QUEIROZ, MARIA EUGENIA C.; NOGUEIRA, RAQUEL F. P.; ALLEN, ANDREW G.; CARDOSO, ARNALDO A.; HELD, GERHARD; CAMPOS, MARIA LUCIA A. M.. Use of levoglucosan, potassium, and water-soluble organic carbon to characterize the origins of biomass-burning aerosols. Atmospheric Environment, v. 61, p. 562-569, DEC 2012. (10/50236-2, 09/07415-6, 08/58073-5)

URBAN, R. C.; ALVES, C. A.; ALLEN, A. G.; CARDOSO, A. A.; CAMPOS, M. L. A. M.. Organic aerosols in a Brazilian agro-industrial area: Speciation and impact of biomass burning. ATMOSPHERIC RESEARCH, v. 169, p. 9-pg., 2016-03-01. (10/50236-2, 08/58073-5)

CAETANO-SILVA, L.; ALLEN, A. G.; CAMPOS, M. L. A. M.; CARDOSO, A. A.. "Will It Rain?" Activities Investigating Aerosol Hygroscopicity and Deliquescence. Journal of Chemical Education, v. 92, n. 4, p. 6-pg., 2015-04-01. (08/58073-5)

CAETANO-SILVA, L.; ALLEN, A. G.; CAMPOS, M. L. A. M.; CARDOSO, A. A.. ``Will It Rain?{''} Activities Investigating Aerosol Hygroscopicity and Deliquescence. Journal of Chemical Education, v. 92, n. 4, p. 672-677, APR 2015. (08/58073-5)

URBAN, R. C.; ALVES, C. A.; ALLEN, A. G.; CARDOSO, A. A.; CAMPOS, M. L. A. M.. Organic aerosols in a Brazilian agro-industrial area: Speciation and impact of biomass burning. ATMOSPHERIC RESEARCH, v. 169, n. A, p. 271-279, MAR 1 2016. (10/50236-2, 08/58073-5)

ALLEN, A. G.; MACHADO, C. M. D.; CARDOSO, A. A.. Measurements and modeling of reactive nitrogen deposition in southeast Brazil. Environmental Pollution, v. 159, n. 5, SI, p. 1190-1197, May 2011. (07/58219-7, 09/07415-6, 08/58073-5)

URBAN, R. C.; ALVES, C. A.; ALLEN, A. G.; CARDOSO, A. A.; QUEIROZ, M. E. C.; CAMPOS, M. L. A. M.. Sugar markers in aerosol particles from an agro-industrial region in Brazil. Atmospheric Environment, v. 90, p. 106-112, JUN 2014. (10/50236-2, 08/58073-5)

OLIVEIRA, PATRICIA L.; FIGUEIREDO, BERNARDINO R.; CARDOSO, ARNALDO A.. Rainwater major and trace element contents in Southeastern Brazil: an assessment of a sugar cane region in dry and wet period. Journal of the Brazilian Chemical Society, v. 23, n. 12, p. 2258-2265, DEC 2012. (08/58073-5)

SCARAMBONI, C.; URBAN, R. C.; LIMA-SOUZA, M.; NOGUEIRA, R. F. P.; CARDOSO, A. A.; ALLEN, A. G.; CAMPOS, M. L. A. M.. Total sugars in atmospheric aerosols: An alternative tracer for biomass burning. Atmospheric Environment, v. 100, p. 185-192, JAN 2015. (10/50236-2, 08/58073-5)

SOUZA, KELY F.; CARVALHO, LILIAN R. F.; ALLEN, ANDREW G.; CARDOSO, ARNALDO A.. Diurnal and nocturnal measurements of PAH, nitro-PAH, and oxy-PAH compounds in atmospheric particulate matter of a sugar cane burning region. Atmospheric Environment, v. 83, p. 193-201, FEB 2014. (08/58073-5)

ALLEN, A. G.; MACHADO, C. M. D.; CARDOSO, A. A.. Measurements and modeling of reactive nitrogen deposition in southeast Brazil. Environmental Pollution, v. 159, n. 5, p. 8-pg., 2011-05-01. (07/58219-7, 08/58073-5, 09/07415-6)