HR: 1400h
AN: A33A-15    [Abstracts]
TI: Evaluation of a dispersion model in Tula's industrial complex in Mexico by optical remote sensing methods
AU: * Cabrera, F
EM: frankcabrerav@yahoo.es
AF: Centro de Ciencias de la Atmosfera, Universidad Nacional Autonoma de Mexico (UNAM), Mexico, DF 04510, Mexico
AU: Basaldud, R
EM: basaldud@atmosfera.unam.mx
AF: Centro de Ciencias de la Atmosfera, Universidad Nacional Autonoma de Mexico (UNAM), Mexico, DF 04510, Mexico
AU: Grutter, M
EM: grutter@servidor.unam.mx
AF: Centro de Ciencias de la Atmosfera, Universidad Nacional Autonoma de Mexico (UNAM), Mexico, DF 04510, Mexico
AU: Wellens, A
EM: wann@servidor.unam.mx
AF: Facultad de Ingenieria, Universidad Nacional Autonoma de Mexico (UNAM), Mexico, DF 04510, Mexico
AB: Tula's Industrial complex (20.05°N, 99.28°W, 2100 masl), located 70 km NNW of Mexico City, is an important SO2 emitter in the region due to the high sulphur content in the fuels burnt primarily by a power plant and an oil refinery. In this study, optical remote sensing techniques have been deployed during October 2005 and June 2006 in order to evaluate the performance of the gaussean dispersion model AERMOD used to estimate surface concentrations in the region. Traversals around the industrial complex with a zenith-sky DOAS instrument served to estimate the total emissions used to feed the model and to know the instantaneous spatial distribution of the plume. A Scanning Imaging Gas Infrared System (SIGIS), based on the spectral analysis of passive IR radiation of the plume, was used to visualize the plume´s dispersion in 2D and thus determine its vertical distribution. The results from various comparisons between observations and model outputs are presented.
DE: 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 0345 Pollution: urban and regional (0305, 0478, 4251)
DE: 0365 Troposphere: composition and chemistry
DE: 0394 Instruments and techniques
SC: Atmospheric Sciences [A]
MN: 2007 Joint Assembly