HR: 0800h
AN: A11A-0030    [Abstracts]
TI: Air Quality and Meteorological Boundary Conditions during the MCMA-2003 Field Campaign
AU: * Sosa, G
EM: gsosa@imp.mx
AF: Instituto Mexicano del Petr¢leo, Eje Central L zaro C rdenas 152, Col. San Instituto Mexicano del Petr¢leo, Eje Central L zaro C rdenas 152, Col. San Bartola Atepehuacan, Mexico City, 07730 Mexico
AU: Arriaga, J
AF: Instituto Mexicano del Petr¢leo, Eje Central L zaro C rdenas 152, Col. San Instituto Mexicano del Petr¢leo, Eje Central L zaro C rdenas 152, Col. San Bartola Atepehuacan, Mexico City, 07730 Mexico
AU: Vega, E
AF: Instituto Mexicano del Petr¢leo, Eje Central L zaro C rdenas 152, Col. San Instituto Mexicano del Petr¢leo, Eje Central L zaro C rdenas 152, Col. San Bartola Atepehuacan, Mexico City, 07730 Mexico
AU: Maga¤a, V
AF: Centro de Ciencias de la Atm¢sfera, Universidad Nacional Aut¢noma de M‚xico (UNAM), Circuito Exterior s/n, Ciudad Universitaria, Delegaci¢n Coyoac n, Mexico City, 04510 Mexico
AU: Caetano, E
AF: Centro de Ciencias de la Atm¢sfera, Universidad Nacional Aut¢noma de M‚xico (UNAM), Circuito Exterior s/n, Ciudad Universitaria, Delegaci¢n Coyoac n, Mexico City, 04510 Mexico
AU: de Foy, B
AF: Departments of Earth, Atmospheric and Planetary Sciences and of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA 02139 United States
AU: Molina, L T
AF: Departments of Earth, Atmospheric and Planetary Sciences and of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA 02139 United States
AU: Molina, M J
AF: Departments of Earth, Atmospheric and Planetary Sciences and of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA 02139 United States
AU: Ramos, R
AF: Secretary of Environment, Government of the Federal District, Agricultura 21, Colonia Escand¢n, Mexico City, 11800 Mexico
AU: Retama, A
AF: Secretary of Environment, Government of the Federal District, Agricultura 21, Colonia Escand¢n, Mexico City, 11800 Mexico
AU: Zaragoza, J
AF: General Direction of the National Center for Environmental Research and Training (CENICA). National Institute of Ecology (INE), Perif‚rico 5000, Col. Insurgentes Cuicuilco, Del. Coyoac n, Mexico City, 04530 Mexico
AU: Mart¡nez, A P
AF: General Direction of the National Center for Environmental Research and Training (CENICA). National Institute of Ecology (INE), Perif‚rico 5000, Col. Insurgentes Cuicuilco, Del. Coyoac n, Mexico City, 04530 Mexico
AU: M rquez, C
AF: General Direction of the National Center for Environmental Research and Training (CENICA). National Institute of Ecology (INE), Perif‚rico 5000, Col. Insurgentes Cuicuilco, Del. Coyoac n, Mexico City, 04530 Mexico
AU: C rdenas, B
AF: General Direction of the National Center for Environmental Research and Training (CENICA). National Institute of Ecology (INE), Perif‚rico 5000, Col. Insurgentes Cuicuilco, Del. Coyoac n, Mexico City, 04530 Mexico
AU: Lamb, B
AF: Department of Civil & Environmental Engineering, Washington State University, Sloan Hall 101, Spokane Street, Pullman, WA 99164-2910 United States
AU: Velasco, E
AF: Department of Civil & Environmental Engineering, Washington State University, Sloan Hall 101, Spokane Street, Pullman, WA 99164-2910 United States
AU: Allwine, E
AF: Department of Civil & Environmental Engineering, Washington State University, Sloan Hall 101, Spokane Street, Pullman, WA 99164-2910 United States
AU: Pressley, S
AF: Department of Civil & Environmental Engineering, Washington State University, Sloan Hall 101, Spokane Street, Pullman, WA 99164-2910 United States
AU: Westberg, H
AF: Department of Civil & Environmental Engineering, Washington State University, Sloan Hall 101, Spokane Street, Pullman, WA 99164-2910 United States
AU: Reyes, R
AF: Secretary of Environment of the State of M‚xico, Palacio Municipal de Tlalnepantla de Baz, Tlalnepantla de Baz, PB Mexico
AB: A comprehensive field campaign to characterize photochemical smog in the Mexico City Metropolitan Area (MCMA) was conducted during April 2003. An important number of equipment was deployed all around the urban core and its surroundings to measure gas and particles composition from the various sources and receptor sites. In addition to air quality measurements, meteorology variables were also taken by regular weather meteorological stations, tethered balloons, radiosondes, sodars and lidars. One important issue with regard to the field campaign was the characterization of the boundary conditions in order to feed meteorological and air quality models. Four boundary sites were selected to measure continuously criteria pollutants, VOC and meteorological variables at surface level. Vertical meteorological profiles were measured at three other sites : radiosondes in Tacubaya site were launched every six hours daily; tethered balloons were launched at CENICA and FES-Cuautitlan sites according to the weather conditions, and one sodar was deployed at UNAM site in the south of the city. Additionally to these measurements, two fixed meteorological monitoring networks deployed along the city were available to complement these measurements. In general, we observed that transport of pollutants from the city to the boundary sites changes every day, according to the coupling between synoptic and local winds. This effect were less important at elevated sites such as Cerro de la Catedral and ININ, where synoptic wind were more dominant during the field campaign. Also, local sources nearby boundary sites hide the influence of pollution coming from the city some days, particularly at the La Reforma site.
DE: 3329 Mesoscale meteorology
DE: 0322 Constituent sources and sinks
DE: 0345 Pollution--urban and regional (0305)
DE: 0368 Troposphere--constituent transport and chemistry
SC: Atmospheric Sciences [A]
MN: 2004 AGU Fall Meeting