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The Coupled Aerosol and Tracer Transport Model to the Brazilian developments on the Regional Atmospheric Modeling System: model validation using direct and remote sensing observations.

Saulo R. Freitas, CPTEC/INPE, (Presenting)
Karla M. Longo, CPTEC/INPE,
Maria A S Dias, CPTEC/INPE,
Pedro L S Dias, IAG/USP,
Robert Chatfield, NASA AMES,
Alvaro Fazenda, CPTEC/INPE,
Luiz F. Rodrigues, CPTEC/INPE,

The atmospheric transport of biomass burning emissions is studied through a numerical simulation of the air mass motions using the CATT-BRAMS (Coupled Aerosol and Tracer Transport model to the Brazilian developments on the Regional Atmospheric Modeling System). CATT-BRAMS is an on-line transport model fully consistent with the simulated atmospheric dynamics. The sources emission from biomass burning and technological activities for gases and aerosol may be defined from several published dataset and remote sensing. The mass concentration prognoses accounts also for convective transport by shallow and deep cumulus, wet and dry deposition and plume rise following the super-parameterization concept. Also, an additional radiation parameterization, which takes the interaction between aerosol particles and short and long wave radiation into account, was implemented. The model is applied for simulate carbon monoxide (CO) and particulate material PM2.5 transport during the SMOCC/RACCI campaign during the 2002 dry season. The model validation is presented with comparison of model results with remote sensing products from MODIS, AIRS and MOPITT. Also comparison with surface and airborne measurements of particulate material (dp < 2.5 m) and carbon monoxide obtained during the SMOCC/RACCI campaign in Amazonia will be discussed.

Science Theme:  TG (Trace Gases)

Presentation Type:  Poster

Abstract ID: 37

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