HR: 09:00h
AN: A41E-05    [Abstracts]
TI: A Statistical Summary of Particle Properties in the Cortez Pass in March, 2006
AU: * Gomez, L
EM: lluviasgt@yahoo.com.mx
AF: Centro de Ciencias de la Atmosfera, Universidad Nacional Autonoma de Mexico, Mexico City, 04510, Mexico
AU: Baumgardner, D
EM: darrel@servidor.unam.mx
AF: Centro de Ciencias de la Atmosfera, Universidad Nacional Autonoma de Mexico, Mexico City, 04510, Mexico
AU: Grutter, M
AF: Centro de Ciencias de la Atmosfera, Universidad Nacional Autonoma de Mexico, Mexico City, 04510, Mexico
AB: A large suite of instruments for measuring the physical (number and size), optical (scattering and absorption coefficients) and chemical (inorganic and organic composition and hygroscopicity) properties of particles was operated 24 hours a day, seven days a week in the Cortez Pass, 60 km southeast of Mexico City, on the Altzomoni ridge at an altitude of 4010 m ASL. During the night and early morning, the site is in the free troposphere; however, air from the surrounding basins of Mexico City (to the NW), Cuernavaca (SW) and Puebla (SE) rises as the boundary layer in these regions grow as a result of local heating and eventually the measurement site is within the air that comes from one of these regions. This presentation is a statistical summary of particle properties stratified by the air mass origin and, in addition, whether the measurement site was in or out of the free troposphere. The properties with highest correlation are shown along with frequency distributions and relevant time series. The objective of this summary is to offer researchers a quick look at the most significant trends, correlations, means and variances of the particle properties.
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 0345 Pollution: urban and regional (0305, 0478, 4251)
DE: 3311 Clouds and aerosols
SC: Atmospheric Sciences [A]
MN: 2007 Joint Assembly