Sensitivity of chemical tracers to meteorological parameters in the MOZART-3 
chemical transport model

Kinnison, D. E.; Brasseur, Guy P.; Walter, S.; Garcia, R. R.; Marsh, D. R.; Sassi, F.; Harvey, V. L.; Randall, C. E.; Emmons, L.; Lamarque, J. F.; Hess, P.; Orlando, J. J.; Tie, X. X.; Randel, W.; Pan, L. L.; Gettelman, A.; Granier, C.; Diehl, T.; Niemeier, U.; Simmons, A. J.

doi:10.1029/2006JD007879

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Sensitivity of chemical tracers to meteorological parameters in the MOZART-3 chemical transport model

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Niemeier, U.
Middle and Upper Atmosphere, The Atmosphere in the Earth System, MPI for Meteorology, Max Planck Society;

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Citation

Kinnison, D. E., Brasseur, G. P., Walter, S., Garcia, R. R., Marsh, D. R., Sassi, F., et al. (2007). Sensitivity of chemical tracers to meteorological parameters in the MOZART-3 chemical transport model. Journal of Geophysical Research-Atmospheres, 112: D20302. doi:10.1029/2006JD007879.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-FAA3-6

Abstract

The Model for Ozone and Related Chemical Tracers, version 3 (MOZART-3), which represents the chemical and physical processes from the troposphere through the lower mesosphere, was used to evaluate the representation of long- lived tracers and ozone using three different meteorological fields. The meteorological fields are based on (1) the Whole Atmosphere Community Climate Model, version 1b (WACCM1b), (2) the European Centre for Medium- Range Weather Forecasts (ECMWF) operational analysis, and (3) a new reanalysis for year 2000 from ECMWF called EXP471. Model-derived tracers (methane, water vapor, and total inorganic nitrogen) and ozone are compared to data climatologies from satellites. Model mean age of air was also derived and compared to in situ CO2 and SF6 data. A detailed analysis of the chemical fields simulated by MOZART-3 shows that even though the general features characterizing the three dynamical sets are rather similar, slight differences in winds and temperature can produce substantial differences in the calculated distributions of chemical tracers. The MOZART-3 simulations that use meteorological fields from WACCM1b and ECMWF EXP471 represented best the distribution of long-lived tracers and mean age of air in the stratosphere. There was a significant improvement using the ECMWF EXP471 reanalysis data product over the ECMWF operational data product. The effect of the quasi- biennial oscillation circulation on long- lived tracers and ozone is examined.