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Decadal record of satellite carbon monoxide observations

Worden, H. M. and Deeter, M. N. and Frankenberg, C. and George, M. and Nichitiu, F. and Worden, J. and Aben, I. and Bowman, K. W. and Clerbaux, C. and Coheur, P. F. and de Laat, A. T. J. and Detweiler, R. and Drummond, J. R. and Edwards, D. P. and Gille, J. C. and Hurtmans, D. and Luo, M. and Martinez-Alonso, S. and Massie, S. and Pfister, G. and Warner, J. X. (2013) Decadal record of satellite carbon monoxide observations. Atmospheric Chemistry and Physics, 13 (2). pp. 837-850. ISSN 1680-7316. doi:10.5194/acp-13-837-2013.

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Atmospheric carbon monoxide (CO) distributions are controlled by anthropogenic emissions, biomass burning, transport and oxidation by reaction with the hydroxyl radical (OH). Quantifying trends in CO is therefore important for understanding changes related to all of these contributions. Here we present a comprehensive record of satellite observations from 2000 through 2011 of total column CO using the available measurements from nadir-viewing thermal infrared instruments: MOPITT, AIRS, TES and IASI. We examine trends for CO in the Northern and Southern Hemispheres along with regional trends for Eastern China, Eastern USA, Europe and India. We find that all the satellite observations are consistent with a modest decreasing trend ~ −1 % yr^(−1) in total column CO over the Northern Hemisphere for this time period and a less significant, but still decreasing trend in the Southern Hemisphere. Although decreasing trends in the United States and Europe have been observed from surface CO measurements, we also find a decrease in CO over E. China that, to our knowledge, has not been reported previously. Some of the interannual variability in the observations can be explained by global fire emissions, but the overall decrease needs further study to understand the implications for changes in anthropogenic emissions.

Item Type:Article
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Frankenberg, C.0000-0002-0546-5857
Bowman, K. W.0000-0002-8659-1117
Additional Information:© 2013 Author(s). This work is distributed under the Creative Commons Attribution 3.0 License. Received: 26 July 2012. Published in Atmos. Chem. Phys. Discuss.: 28 September 2012. Revised: 20 December 2012. Accepted: 15 January 2013. Published: 22 January 2013. The MOPITT, AIRS and TES projects are supported by the National Aeronautics and Space Administration (NASA) Earth Observing System (EOS) Program. The MOPITT team also acknowledges support from the Canadian Space Agency (CSA), the Natural Sciences and Engineering Research Council (NSERC) and Environment Canada, along with the contributions of COMDEV (the prime contractor) and ABB BOMEM. IASI was developed and built under the responsibility of CNES and flies onboard the MetOp satellite as part of the Eumetsat Polar system. The authors acknowledge the Ether French atmospheric database ( for distributing the IASI L1C and L2-CO data. AIRS data records and analyses used in this paper were produced with the Giovanni online data system, developed and maintained by the NASA GES DISC. Part of this research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration. C. Clerbaux and M. George are grateful for the CNES financial support. P. F. Coheur is a Research Associate with F.R.S.-FNRS. The research in Belgium was also funded by BELSPO and ESA (Prodex arrangements). The authors thank Louisa Emmons and Mijeong Park at NCAR for their helpful suggestions. The National Center for Atmospheric Research (NCAR) is sponsored by the National Science Foundation. Edited by: F. Dentener.
Group:UNSPECIFIED, Division of Geological and Planetary Sciences
Funding AgencyGrant Number
Canadian Space Agency (CSA)UNSPECIFIED
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
Centre National de la Recherche Scientifique (CNRS)UNSPECIFIED
Belgian Federal Science Policy Office (BELSPO)UNSPECIFIED
European Space Agency (ESA)UNSPECIFIED
Environment CanadaUNSPECIFIED
Issue or Number:2
Record Number:CaltechAUTHORS:20150511-125530441
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Official Citation:Worden, H. M., Deeter, M. N., Frankenberg, C., George, M., Nichitiu, F., Worden, J., Aben, I., Bowman, K. W., Clerbaux, C., Coheur, P. F., de Laat, A. T. J., Detweiler, R., Drummond, J. R., Edwards, D. P., Gille, J. C., Hurtmans, D., Luo, M., Martínez-Alonso, S., Massie, S., Pfister, G., and Warner, J. X.: Decadal record of satellite carbon monoxide observations, Atmos. Chem. Phys., 13, 837-850, doi:10.5194/acp-13-837-2013, 2013.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:57416
Deposited By: Ruth Sustaita
Deposited On:11 May 2015 21:16
Last Modified:10 Nov 2021 21:12

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