Increased Northern Hemispheric carbon monoxide burden in the troposphere in 2002 and 2003 detected from the ground and from space L. N. Yurganov1, P. Duchatelet2, A. V. Dzhola3, D. P. Edwards4, F. Hase5, I. Kramer5, E. Mahieu2, J. Mellqvist6, J. Notholt7, P. C. Novelli8, A. Rockmann9, H. E. Scheel9, M. Schneider5, A. Schulz10, A. Strandberg6, R. Sussmann9, H. Tanimoto11, V. Velazco7, J. R. Drummond12, and J. C. Gille4 1Frontier Research Center for Global Change, JAMSTEC, Yokohama, Japan 2Institute of Astrophysics and Geophysics, University of Liège, Liège, Belgium 3Obukhov Institute of Atmospheric Physics, Moscow, Russia 4Atmospheric Chemistry Division, National Center for Atmospheric Research, Boulder, CO, USA 5IMK-ASF, Forschungszentrum Karlsruhe, Karlsruhe, Germany 6Radio and Space Science, Chalmers University of Technology, Göteborg, Sweden 7University of Bremen, Bremen, Germany 8Climate Monitoring and Diagnostic Laboratory, NOAA, Boulder, Colorado, USA 9IMK-IFU, Forschungszentrum Karlsruhe, Garmisch-Partenkirchen, Germany 10Alfred-Wegener-Institute, Potsdam, Germany 11National Institute for Environmental Studies, Tsukuba, Japan 12University of Toronto, Toronto, Canadar
Abstract. Carbon monoxide total column amounts in the atmosphere
have been measured in the High Northern Hemisphere (30°-90° N,
HNH) between January 2002 and December 2003 using infrared spectrometers of
high and moderate resolution and the Sun as a light source. They were
compared to ground-level CO mixing ratios and to total column amounts
measured from space by the Terra/MOPITT instrument. All these data reveal
increased CO abundances in 2002-2003 in comparison to the unperturbed
2000-2001 period. Maximum anomalies were observed in September 2002 and
August 2003. Using a simple two-box model, the corresponding annual CO
emission anomalies (referenced to 2000-2001 period) have been found equal to
95Tg in 2002 and 130Tg in 2003, thus close to those for 1996 and 1998. A
good correlation with hot spots detected by a satellite radiometer allows
one to assume strong boreal forest fires, occurred mainly in Russia, as a
source of the increased CO burdens.
Citation: Yurganov, L. N., Duchatelet, P., Dzhola, A. V., Edwards, D. P., Hase, F., Kramer, I., Mahieu, E., Mellqvist, J., Notholt, J., Novelli, P. C., Rockmann, A., Scheel, H. E., Schneider, M., Schulz, A., Strandberg, A., Sussmann, R., Tanimoto, H., Velazco, V., Drummond, J. R., and Gille, J. C.: Increased Northern Hemispheric carbon monoxide burden in the troposphere in 2002 and 2003 detected from the ground and from space, Atmos. Chem. Phys., 5, 563-573, doi:10.5194/acp-5-563-2005, 2005.