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Tagged Ozone Mechanism for Mozart-4, Cam-chem, and Other Chemical Transport Models : Volume 5, Issue 3 (24/07/2012)

By Emmons, L. K.

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Book Id: WPLBN0004009363
Format Type: PDF Article :
File Size: Pages 37
Reproduction Date: 2015

Title: Tagged Ozone Mechanism for Mozart-4, Cam-chem, and Other Chemical Transport Models : Volume 5, Issue 3 (24/07/2012)  
Author: Emmons, L. K.
Volume: Vol. 5, Issue 3
Language: English
Subject: Science, Geoscientific, Model
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2012
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

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Pfister, G. G., Hess, P. G., Lamarque, J., & Emmons, L. K. (2012). Tagged Ozone Mechanism for Mozart-4, Cam-chem, and Other Chemical Transport Models : Volume 5, Issue 3 (24/07/2012). Retrieved from http://kindle.worldlibrary.net/


Description
Description: Atmospheric Chemistry Division, National Center for Atmospheric Research, Boulder, CO, USA. A procedure for tagging ozone produced from NO sources through updates to an existing chemical mechanism is described, and results from its implementation in the Model for Ozone and Related chemical Tracers (MOZART-4), a global chemical transport model, are presented. Artificial tracers are added to the mechanism, thus not affecting the standard chemistry. The results are linear in the troposphere, i.e., the sum of ozone from individual tagged sources equals the ozone from all sources to within 3% in zonal mean monthly averages. The stratospheric ozone contribution to the troposphere determined from the difference between total ozone and ozone from all tagged sources is significantly less than estimates using a traditional stratospheric ozone tracer (8 vs 20 ppbv at the surface). The commonly used technique of perturbing NO emissions by 20% in a region to determine its ozone contribution is compared to the tagging technique, showing that the tagged ozone is 2–4 times the ozone contribution that was deduced from perturbing emissions.

Summary
Tagged ozone mechanism for MOZART-4, CAM-chem, and other chemical transport models

Excerpt
Arellano, A. F., Kasibhatla, P. S., Giglio, L., van der Werf, G. R., Randerson, J. T., and Collatz, G. J.: Time-dependent inversion estimates of global biomass-burning CO emissions using Measurement of Pollution in the Troposphere (MOPITT) measurements, J. Geophys. Res., 111, D09303, doi:10.1029/2005JD006613, 2006.; Brown-Steiner, B. and Hess, P.: Asian influence on surface ozone in the United States: A comparison of chemistry, seasonality, and transport mechanisms, J. Geophys. Res., 116, D17309, doi:10.1029/2011JD015846, 2011.; Dahlmann, K., Grewe, V., Ponater, M., and Matthes, S.: Quantifying the contributions of individual NOx sources to the trend in ozone radiative forcing, Atmos. Environ., 45, 2860–2868, 2011.; Dentener, F., Keating, T., and Akimoto, H. (Eds.): Hemispheric Transport of Air Pollution, United Nations, available at: http://htap.org (last access: January 2012), 2010.; Emmons, L., Hess, P., Klonecki, A., Tie, X., Horowitz, L., Lamarque, J. F., Kinnison, D., Brasseur, G., Atlas, E., Browell, E., Cantrell, C., Eisele, F., Mauldin, R. L., Merrill, J., Ridley, B., and Shetter, R.: Budget of tropospheric ozone during TOPSE from two chemical transport models, J. Geophys. Res., 108, 8372, doi:10.1029/2002JD002665, 2003.; Emmons, L. K., Apel, E. C., Lamarque, J.-F., Hess, P. G., Avery, M., Blake, D., Brune, W., Campos, T., Crawford, J., DeCarlo, P. F., Hall, S., Heikes, B., Holloway, J., Jimenez, J. L., Knapp, D. J., Kok, G., Mena-Carrasco, M., Olson, J., O'Sullivan, D., Sachse, G., Walega, J., Weibring, P., Weinheimer, A., and Wiedinmyer, C.: Impact of Mexico City emissions on regional air quality from MOZART-4 simulations, Atmos. Chem. Phys., 10, 6195–6212, doi:10.5194/acp-10-6195-2010, 2010{a}.; Emmons, L. K., Walters, S., Hess, P. G., Lamarque, J.-F., Pfister, G. G., Fillmore, D., Granier, C., Guenther, A., Kinnison, D., Laepple, T., Orlando, J., Tie, X., Tyndall, G., Wiedinmyer, C., Baughcum, S. L., and Kloster, S.: Description and evaluation of the Model for Ozone and Related chemical Tracers, version 4 (MOZART-4), Geosci. Model Dev., 3, 43–67, doi:10.5194/gmd-3-43-2010, 2010{b}.; Fiore, A. M., Jacob, D. J., Bey, I., Yantosca, R. M., Field, B. D., Fusco, A. C., and Wilkinson, J. G.: Background ozone over the United States in summer: origin, trend, and contribution to pollution episodes, J. Geophys. Res., 107, D15, doi:10.1029/2001JD000982, 2002.; Fiore, A. M., Dentener, F. J., Wild, O., et al.: Multimodel estimates of intercontinental source-receptor relationships for ozone pollution, J. Geophys. Res., 114, D04301, doi:10.1029/2008JD010816, 2009.; Gr

 

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