Interannual variability of mid-tropospheric CO_2 from Atmospheric Infrared Sounder
Abstract
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.
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.Attached Files
Published - Jiang2010p10812Geophys_Res_Lett.pdf
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Additional details
- Eprint ID
- 19130
- Resolver ID
- CaltechAUTHORS:20100720-133357226
- G99694
- JPL
- Created
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2010-07-30Created from EPrint's datestamp field
- Updated
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2021-11-08Created from EPrint's last_modified field
- Caltech groups
- Division of Geological and Planetary Sciences