Hit from both sides: tracking industrial and volcanic plumes in Mexico City with surface measurements and OMI SO<sub>2</sub> retrievals during the MILAGRO field campaign
Author:
de Foy B.,Bei N.,Herndon S. C.,Huey L. G.,Martínez A.-P.,Ruiz-Suárez L. G.,Wood E. C.,Zavala M.,Molina L. T.
Abstract
Abstract. Large sulfur dioxide plumes were measured in the Mexico City Metropolitan Area (MCMA) during the MILAGRO field campaign. This paper seeks to identify the sources of these plumes and the meteorological processes that affect their dispersion in a complex mountain basin. Surface measurements of SO2 and winds are analysed in combination with radar wind profiler data to identify transport directions. Satellite retrievals of vertical SO2 columns from the Ozone Monitoring Instrument (OMI) reveal the dispersion from both the Tula industrial complex and the Popocatepetl volcano. Numerical simulations are used to identify possible transport scenarios. The analysis suggests that both Tula and Popocatepetl contribute to SO2 levels in the MCMA, sometimes on the same day due to strong vertical wind shear. The evaluation of simulations with known sources and pollutants suggests that the combination of observations and meteorological models will be useful in identifying sources and transport processes of other plumes observed during MILAGRO.
Publisher
Copernicus GmbH
Reference49 articles.
1. Baumgardner, D., Raga, G. B., Kok, G., Ogren, J., Rosas, I., Baez, A., and Novakov, T.: On the evolution of aerosol properties at a mountain site above Mexico City, J. Geophys. Res., 105, 22243–22253, 2000. 2. Baumgardner, D., Grutter, M., Allan, J., Ochoa, C., Rappenglueck, B., Russell, L. M., and Arnott, P.: Evolution of anthropogenic pollution at the top of the regional mixed layer in the central Mexico plateau, Atmos. Chem. Phys. Discuss., 9, 3265–3306, 2009. 3. Bossert, J. E.: An investigation of flow regimes affecting the Mexico City region, J. Appl. Meteorol., 36, 119–140, 1997. 4. Carn, S. A., Krueger, A. J., Krotkov, N. A., Yang, K., and Levelt, P. F.: Sulfur dioxide emissions from Peruvian copper smelters detected by the Ozone Monitoring Instrument, Geophys. Res. Lett., 34, L09801, https://doi.org/10.1029/2006GL029020, 2007. 5. Chow, J. C., Watson, J. G., Edgerton, S. A., Vega, E., and Ortiz, E.: Spatial differences in outdoor PM10 mass and aerosol composition in Mexico City, J. Air Waste Manage. Assoc., 52, 423–434, 2002.
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献
|
|