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Interannual variability of mid-tropospheric CO_2 from Atmospheric Infrared Sounder

Jiang, Xun and Chahine, Moustafa T. and Olsen, Edward T. and Chen, Luke L. and Yung, Yuk L. (2010) Interannual variability of mid-tropospheric CO_2 from Atmospheric Infrared Sounder. Geophysical Research Letters, 37 . Art. No. L13801. ISSN 0094-8276.

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Atmospheric Infrared Sounder (AIRS) offers a unique opportunity to investigate the variability of mid-tropospheric CO_2 over the entire globe. In this paper, we use AIRS data to examine the interannual variability of CO_2 and find significant correlations between AIRS mid-tropospheric CO_2 and large-scale atmospheric dynamics. During El Niño events, mid-tropospheric CO_2 over the central Pacific Ocean is enhanced whereas it is reduced over the western Pacific Ocean as a result of the change in the Walker circulation. The variation of AIRS CO_2 in the high latitudes of the northern hemisphere is closely related to the strength of the northern hemispheric annular mode. These results contribute to a better understanding of the influence of large-scale dynamics on tracer distributions.

Item Type:Article
Related URLs:
Jiang, Xun0000-0001-8932-3807
Yung, Yuk L.0000-0002-4263-2562
Additional Information:© 2010 American Geophysical Union. Received 12 February 2010; revised 10 May 2010; accepted 21 May 2010; published 1 July 2010. This work was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. X. Jiang is supported by JPL grant G99694. We thank two anonymous reviewers for helpful comments.
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Subject Keywords:mid-tropospheric CO2; large-scale circulation
Record Number:CaltechAUTHORS:20100720-133357226
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Official Citation:Jiang, X., M. T. Chahine, E. T. Olsen, L. L. Chen, and Y. L. Yung (2010), Interannual variability of mid-tropospheric CO2 from Atmospheric Infrared Sounder, Geophys. Res. Lett., 37, L13801, doi:10.1029/2010GL042823.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:19130
Deposited By: Tony Diaz
Deposited On:30 Jul 2010 22:02
Last Modified:09 Mar 2020 13:19

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