HR: 1340h
AN: A33A-0811    [Abstracts]
TI: Plume Transport in the Mexico City Metropolitan Area Basin During the MILAGRO Field Campaign: WRF Simulations with Satellite-Derived Initialization of the Land Surface and Evaluation of FLEXPART Lagrangian Particle Trajectories with HSRL Lidar Data.
AU: * de Foy, B
EM: bdefoy@slu.edu
AF: Saint Louis University, 3642 Lindell Blvd, St Louis, MO 63108, United States
AU: Kozich, P J
EM: kozichpj@yahoo.com
AF: Saint Louis University, 3642 Lindell Blvd, St Louis, MO 63108, United States
AU: Hair, J W
EM: johnathan.w.hair@nasa.gov
AF: NASA Langley Research Center, Building 1250, Hampton, VA 23681, United States
AU: Obland, M D
EM: michael.d.obland@nasa.gov
AF: NASA Langley Research Center, Building 1250, Hampton, VA 23681, United States
AU: Rogers, R R
EM: raymond.r.rogers@nasa.gov
AF: NASA Langley Research Center, Building 1250, Hampton, VA 23681, United States
AU: Ferrare, R A
EM: richard.a.ferrare@nasa.gov
AF: NASA Langley Research Center, Building 1250, Hampton, VA 23681, United States
AU: Hostetler, C A
EM: chris.a.hostetler@nasa.gov
AF: NASA Langley Research Center, Building 1250, Hampton, VA 23681, United States
AU: Molina, L T
EM: ltmolina@mit.edu
AF: Molina Center for Energy and the Environment, 3262 Holiday Ct. Suite 201, La Jolla, CA 92037, United States
AB: Located in a high-altitude basin with mountains on three sides, Mexico City experiences complex three- dimensional wind transport patterns strongly affected by local heating of the land surface. Analysis of chemical and aerosol measurements performed during the campaign benefits from the identification of the transport of the urban plume and other pollution sources. A mesoscale model, the Weather and Research Forecast (WRF) model, is used to simulate the winds in the basin at a 3 km resolution during the whole campaign. Improved simulations are obtained by using high resolution description of the land surface for landuse, vegetation fraction, surface albedo and ground temperature from the MODIS satellite sensor. Lagrangian trajectories of pollutant sources are performed using the FLEXPART model for the month of March 2006. The particle transport is compared with aerosol measurements from the airborne NASA Langley Research Center High Spectral Resolution Lidar (HSRL). Extensive curtain measurements obtained from flights at high altitude above Mexico City capture in detail the basin-mountain and urban circulations providing a valuable method of evaluating model transport and of analyzing local meteorological conditions.
DE: 0345 Pollution: urban and regional (0305, 0478, 4251)
DE: 3307 Boundary layer processes
DE: 3322 Land/atmosphere interactions (1218, 1631, 1843)
DE: 3329 Mesoscale meteorology
DE: 3360 Remote sensing
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting