Articles | Volume 17, issue 20
Atmos. Chem. Phys., 17, 12449–12474, 2017

Special issue: Global and regional assessment of intercontinental transport...

Atmos. Chem. Phys., 17, 12449–12474, 2017

Research article 19 Oct 2017

Research article | 19 Oct 2017

Extending the Community Multiscale Air Quality (CMAQ) modeling system to hemispheric scales: overview of process considerations and initial applications

Rohit Mathur et al.

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Cited articles

Andreae, M. O., Berresheim, H., Andreae, T. W., Kritz, M. A., Bates, T. S., and Merrill, J. T.: Vertical distribution of dimethylsulfide, sulfur dioxide, aerosol ions, and radon over the North-East Pacific Ocean, J. Atmos. Chem., 6, 149–173, 1988.
Barrie, L. A., Li, S.-M., Toom, D. L., Landsberger, S., and Sturges, W.: Lower tropospheric measurements of halogens, nitrates, and sulphur oxides during Polar Sunrise Experiment 1992, J. Geophys. Res.-Atmos., 99, 25453–25467, 1994.
Bohren, C. F. and Huffman, D. R.: Absorption and Scattering of Light by Small Particles, Wiley-Interscience, New York, USA, 530 pp., 1983.
Brandt, J., Silver, J. D., Frohn, L. M., Geels, C., Gross, A., Hansen, A. B., Hansen, K. M., Hedegaard, G. B., Skoth, C. A., Villadsen, H., Zare, A., and Christensen, J. H.: An integrated model study for Europe and North America using the Danish Eulerian Hemispheric Model with focus on intercontinental transport of air pollution, Atmos. Environ., 53, 156–176,, 2012.
Short summary
We extend CMAQ's applicability to the entire Northern Hemisphere to enable consistent examination of interactions between atmospheric processes occurring on various spatial and temporal scales. Improvements were made in model process representation, structure, and input data sets that enable a range of model applications including episodic intercontinental pollutant transport, long-term trends in air pollution across the Northern Hemisphere, and air pollution–climate interactions.
Final-revised paper