Measurement of Ambient Concentrations of Aerosols to Support the Analysis of MIRAGE Urban Plume Transport and Chemistry
EMSL Project ID
17491
Abstract
As part of the MIRAGE/MILAGRO field campaign, we propose to collect VOC flux measurements and aerosol ambient concentration and flux measurements at a site near the center of Mexico City. We will employ a fast olefin sensor to measure olefin fluxes, a Proton Transfer Reaction Mass Spectrometer (PTR-MS) to measure fluxes of aromatics and selected oxygenated VOC, and a novel disjunct eddy accumulation system to measure fluxes of other individual VOC amenable to analysis with gas chromatography/flame ionization detection. These measurements are supported via NSF (see attached). We propose to collaborate with Michael Alexander to use the EMSL Aerosol Mass Spectrometer to measure ambient concentrations of aerosols and for a portion of the time, to use the AMS in flux mode to measure aerosol fluxes from the urban landscape. Fluxes of CO, CO2 and latent and sensible heat flux will also be measured. The flux measurements will be conducted on a continuous basis during approximately one month in Mexico City and provide a detailed data base of urban fluxes that can be used to support the analysis of MIRAGE urban plume transport and chemistry.
Project Details
Project type
Exploratory Research
Start Date
2006-03-13
End Date
2007-03-26
Status
Closed
Released Data Link
Team
Principal Investigator