Anthropogenic and biogenic winter sources of Arctic CO2—a model study

Article English OPEN
Brandefelt, Jenny ; Holmén, Kim (2011)

Long-range transport of anthropogenic and biogenic CO2 to a remote site in the Arctic is studied. A limited area, off-line, Eulerian atmospheric transport model is used, and the results are compared to the observed CO2 concentration at the “Ny-Alesund International Arctic Research and Monitoring Facility”. Inventories of anthropogenic CO2 emissions and estimates of biogenic CO2 emissions are used to investigate the respective impact of these emissions on Arctic CO2 variations during 4 winter months. A direct comparison of the modelled and observed concentrations reveals remarkably good timing in the modelled variations as compared to the observed variations for most of the time. The correlation of observed versus modelled CO2 concentration is significant at the 95% confidence level. The biogenic and the anthropogenic CO2 emissions are shown to have approximately equal influence on Arctic CO2 variations during winter. Europe is found to be the dominant source of anthropogenic CO2 at the monitoring station, while Siberia and Northern America have little influence on Arctic CO2, during the months studied. These results contradict Engardt and Holmén whose results indicate that the lower-Ob region in western Siberia has a large impact on Arctic CO2.DOI: 10.1034/j.1600-0889.2001.01014.x
  • References (20)
    20 references, page 1 of 2

    Andres, R. J., Marland, G., Fung, I. and Matthews, E. 1996. A 1°×1° distribution of carbon dioxide emissions from fossil fuel consumption and cement manufacture, 1950-1990. Global Biogeochemical Cycles 10, 419-429.

    Benkovitz, C. M., Scholtz, M. T., Pacyna, J., Tarras o´n, L., Dignon, J., Voldner, E. C., Spiro, P. A., Logan, J. A. and Graedel, T. E. 1996. Global gridded inventories of anthropogenic emissions of sulphur and nitrogen. J. Geophys. Res. 101D, 29239-29253.

    Bonan, G. B. 1996. A land surface model (L SM version 1.0) for ecological,hydrological, and atmospheric studies. T echnical description and user's guide. NCAR Technical Note. National Center for Atmospheric Research, Boulder, Colorado, USA. NCAR/TN417+STR.

    Do¨ rr, H. and M u¨nnich, K. O. 1987. Annual variation in soil respiration in selected areas of the temperate zone. T ellus 39B, 114-121.

    Engardt, M., Holme´n, K. and Heintzenberg J. 1996. Short-term variations in atmospheric CO2 at Ny- A˙lesund, Spitsbergen, during summer and winter. T ellus 48B, 2881-2894.

    Engardt, M. and Holme´n, K. 1999. Model simulations of anthropogenic-CO2 transport to an Arctic monitoring station during winter. T ellus 51B, 194-209.

    Fung, I. Y., Tucker, C. J. and Prentice K. C. 1987. Application of advanced very high resolution radiometer vegetation index to study atmosphere-biosphere exchange of CO2. J. Geophys. Res. 92, 2999-3015.

    Hanna, S. R. 1994. Mesoscale meteorological model evaluation techniques with emphasis on needs of air quality models. In: Mesoscale modeling of the atmosphere (eds. R. A. Pielke and R. P. Pearce). American Meteorological Society, Boston, Massachusetts, USA, pp. 47-62.

    Higushi, K. and Daggupaty, S. M. 1985. On variability of atmospheric CO2 at station Alert. Atmospheric Environment 19, 2039-2044.

    Holme´n, K., Engardt, M. and Odh, S.-. A˙. 1995. T he carbon dioxide measurement program at the Department of Meteorology at Stockholm University. Report CM-84, Dept. of Meteorology, Stockholm University, Stockholm, Sweden, 38 pp.

  • Metrics
    No metrics available
Share - Bookmark