Mexico City basin ventilation and urban plume
نویسندگان
چکیده
Rapid ventilation of the Mexico City basin and regional fate of the urban plume B. de Foy, J. R. Varela, L. T. Molina, and M. J. Molina Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, USA Departamento de Ingenieŕıa de Procesos e Hidráulica, Universidad Autónoma Metropolitana, Iztapalapa, México Received: 1 December 2005 – Accepted: 22 December 2005 – Published: 31 January 2006 Correspondence to: B. de Foy ([email protected]) © 2006 Author(s). This work is licensed under a Creative Commons License.
منابع مشابه
Rapid ventilation of the Mexico City basin and regional fate of the urban plume
Urban areas can be large emitters of air pollutants leading to negative health effects and environmental degradation. The rate of venting of these airsheds determines the pollutant loading for given emission levels, and also determines the regional impacts of the urban plume. Mexico City has approximately 20 million people living in a high altitude basin with air pollutant concentrations above ...
متن کاملUsing 3DVAR data assimilation system to improve ozone simulations in the Mexico City basin
This study investigates the improvement of ozone (O3) simulations in the Mexico City basin using a threedimensional variational (3DVAR) data assimilation system in meteorological simulations during the MCMA-2003 field measurement campaign. Meteorological simulations from the NCAR/Penn State mesoscale model (MM5) are used to drive photochemical simulations with the Comprehensive Air Quality Mode...
متن کاملThe production and persistence of 6RONO2 in the Mexico City plume
Alkyl and multifunctional nitrates (RONO2, 6ANs) have been observed to be a significant fraction of NOy in a number of different chemical regimes. Their formation is an important free radical chain termination step ending production of ozone and possibly affecting formation of secondary organic aerosol. 6ANs also represent a potentially large, unmeasured contribution to OH reactivity and are a ...
متن کاملEvaluation of WRF mesoscale simulations and particle trajectory analysis for the MILAGRO field campaign
Accurate numerical simulations of the complex wind flows in the Mexico City Metropolitan Area (MCMA) can be an invaluable tool for interpreting the MILAGRO field campaign results. This paper uses three methods to evaluate numerical simulations of basin meteorology using the MM5 and WRF models: statistical comparisons with observations, “Concentration Field Analysis” (CFA) using measured air pol...
متن کاملSize-resolved aerosol emission factors and new particle formation/growth activity occurring in Mexico City during the MILAGRO 2006 Campaign
Measurements of the aerosol size distribution from 11 nm to 2.5 microns were made in Mexico City in March 2006, during the MILAGRO (Megacity Initiative: Local and Global Research Observations) field campaign. Observations at the urban supersite, referred to as T0, could often be characterized by morning conditions with high particle mass concentrations, low mixing heights, and highly correlated...
متن کامل