Articles | Volume 14, issue 23
Atmos. Chem. Phys., 14, 12649–12663, 2014
https://doi.org/10.5194/acp-14-12649-2014
Atmos. Chem. Phys., 14, 12649–12663, 2014
https://doi.org/10.5194/acp-14-12649-2014
Research article
02 Dec 2014
Research article | 02 Dec 2014

Tropospheric carbon monoxide over the Pacific during HIPPO: two-way coupled simulation of GEOS-Chem and its multiple nested models

Y.-Y. Yan et al.

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Cited articles

Akimoto, H.: Global air quality and pollution, Science, 302, 1716–1719, 2003.
Auvray, M. and Bey, I.: Long-range transport to Europe: seasonal variations and implications for the European ozone budget, J. Geophys. Res.-Atmos., 110, D11303, https://doi.org/10.1029/2004jd005503, 2005.
Chen, D., Wang, Y., McElroy, M. B., He, K., Yantosca, R. M., and Le Sager, P.: Regional CO pollution and export in China simulated by the high-resolution nested-grid GEOS-Chem model, Atmos. Chem. Phys., 9, 3825–3839, https://doi.org/10.5194/acp-9-3825-2009, 2009.
Short summary
Limited by coarse resolutions, global chemical transport models cannot well capture small-scale nonlinear processes. To alleviate the problem, we develop a two-way coupled system to integrate the global GEOS-Chem model and its three high-resolution nested models covering Asia, Europe and North America. Confirmed by comparisons with observations, the coupled system improves upon the global model with a 10% increase in global tropospheric CO, a 4% decrease in OH and a 4% increase in MCF lifetime.
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