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A General Circulation Model Study of Atmospheric Carbon Monoxide

Pinto, Joseph P. and Yung, Yuk L. and Rind, David and Russell, Gary L. and Lerner, Jean A. and Hansen, James E. and Hameed, Sultan (1983) A General Circulation Model Study of Atmospheric Carbon Monoxide. Journal of Geophysical Research C, 88 (C6). pp. 3691-3702. ISSN 0148-0227. doi:10.1029/JC088iC06p03691.

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The carbon monoxide cycle is studied by incorporating the known and hypothetical sources and sinks in a tracer model that uses the winds generated by a general circulation model. Photochemical production and loss terms, which depend on OH radical concentrations, are calculated in an interactive fashion. The computed global distribution and seasonal variations of CO are compared with observations to obtain constraints on the distribution and magnitude of the sources and sinks of CO, and on the tropospheric abundance of OH. The simplest model that accounts for available observations requires a low latitude plant source of about 1.3×10^(15) g yr^(−1), in addition to sources from incomplete combustion of fossil fuels and oxidation of methane. The globally averaged OH concentration calculated in the model is 7×10^5 cm^(−3). Models that calculate globally averaged OH concentrations much lower than our nominal value are not consistent with the observed variability of CO. Such models are also inconsistent with measurements of CO isotopic abundances, which imply the existence of plant sources.

Item Type:Article
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Yung, Yuk L.0000-0002-4263-2562
Additional Information:© 1983 by the American Geophysical Union. Received October 20, 1980; revised December 31, 1982; accepted January 10, 1983. Paper number 3C0077. We thank Elaine Matthews for helpful discussions concerning seasonality in tropical vegetation. One of us (J.P.) was supported by an NAS-NRC Resident Research Associateship during the course of this work.
Group:UNSPECIFIED, Division of Geological and Planetary Sciences
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NAS-NRC Resident Research AssociateshipUNSPECIFIED
Issue or Number:C6
Record Number:CaltechAUTHORS:20140923-112101215
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Official Citation:Pinto, J. P., Y. L. Yung, D. Rind, G. L. Russell, J. A. Lerner, J. E. Hansen, and S. Hameed (1983), A general circulation model study of atmospheric carbon monoxide, J. Geophys. Res., 88(C6), 3691–3702, doi:10.1029/JC088iC06p03691.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:49940
Deposited By: Ruth Sustaita
Deposited On:23 Sep 2014 18:52
Last Modified:10 Nov 2021 18:49

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