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Eneroth, Kristina; Aalto, Tuula; Hatakka, Juha; Holmén, Kim; Laurila, Tuomas; Viisanen, Yrjö (2011)
Publisher: Tellus B
Journal: Tellus B
Languages: English
Types: Article
Subjects:
Interannual and seasonal variations in atmospheric transport to a baseline monitoring station at Pallas (67°58′N, 24°07′E) in northern Finland were examined. The transport was analysed through cluster analysis of three-dimensional 5-d back-trajectories during the period 1997–2003. The trajectory climatology shows that air mass advection from the north is most frequent—mostly at high wind speeds across the Arctic Basin and from northern Siberia—but during summer more stagnant flows from the Norwegian Sea are common as well. Western and Central Europe were found to be the second most important regions of influence for air arriving at Pallas, followed by atmospheric transport from west Russia and the Atlantic, respectively. The trajectory clusters were combined with measurements of carbon dioxide (CO2) in order to examine the linkage between atmospheric large-scale circulation and CO2concentration at Pallas. The Atlantic and Arctic air masses were associated with relatively small annual CO2 amplitudes at Pallas. In contrast, large concentration differences between the summer minimum and winter maximum were observed during periods of continental air mass transport from the south and the east. In particular the air masses originating from west Russia were associated with very low CO2 concentrations during summer, indicating high photosynthetic activity of the terrestrial biosphere in this region. We analysed how the vertical motion of the trajectories affects the observed CO2 at Pallas. The largest difference in CO2 concentration between air parcels moving at low and high altitudes, respectively, was found during air mass advection from Europe and west Russia. This was especially true during the winter months when large CO2 emissions in these areas, i.e. from fossil fuel combustion and the decomposition and respiration of the vegetation, in combination with stable stratification can give rise to very high CO2concentrations in air parcels transported close to the surface. The CO2 time-series from Pallas was compared with CO2 measurements made at the Mount Zeppelin station on Svalbard, illustrating the different characteristics—boreal and maritime, respectively—of the regions affecting the two monitoring sites.DOI: 10.1111/j.1600-0889.2005.00160.x
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    • Aalto, T., Hatakka, J., Paatero, J., Tuovinen, J.-P., Aurela, M. and coauthors 2002. Tropospheric carbon dioxide concentrations at a northern boreal site in Finland: basic variations and source areas. Tellus 54B, 110-126.
    • Aalto, T., Hatakka, J. and Viisanen, Y. 2003. Influence of air mass source sector on variations in CO2 mixing ratio at a boreal site in northern Finland. Boreal Env. Res. 8, 285-393.
    • Brandefelt, J. and Holme´n, K. 2001. Anthropogenic and biogenic winter sources of Arctic CO2: a model study. Tellus 53B, 10-21.
    • Chevillard, A., Karstens, U., Ciais, P., Lafont, S. and Heimann, M. 2002. Simulation of atmospheric CO2 over Europe and western Siberia using the regional scale model REMO. Tellus 54B, 872-894.
    • Ciais, P., Tans, P. P., Trolier, M. J., White, W. C. and Francey, R. J. 1995. A large northern hemispheric terrestrial CO2 sink indicated by the 13C/12C ratio of atmospheric CO2. Science 269, 1098-1102.
    • Conway, T. J., Steele, L. P. and Novelli, P. C. 1993. Correlations among atmospheric CO2, CH4 and CO in the Arctic, March 1989. Atmos. Environ. 27A, 2881-2894.
    • Eneroth, K., Kjellstro¨m, E. and Holme´n, K. 2003. A trajectory climatology for Svalbard; investigating how atmospheric flow patterns influence observed tracer concentrations. Phys. Chem. Earth 28, 1191- 1203, doi:10.1016/j.pce.2003.08.051.
    • Engardt, M. and Holme´n, K. 1999. Model simulations of anthropogenic CO2 transport to an Arctic monitoring station during winter. Tellus 51B, 194-209.
    • Enting, I. G. and Mansbridge, J. V. 1989. Seasonal sources and sinks of atmospheric CO2: direct inversion of filtered data. Tellus 41B, 111- 126.
    • Hatakka, J., Aalto, T., Aaltonen, V., Aurela, M., Hakola, H. and coauthors 2003. Overview of the atmospheric research activities and results at Pallas GAW station. Boreal Env. Res. 8, 365-383.
    • Higuchi, K., Murayama, S. and Taguchi, S. 2002. Quasi-decadal variation of the atmospheric CO2 seasonal cycle due to atmospheric circulation changes: 1979-1998. Geophys. Res. Lett. 29, 1173, 10.1029/2001GL013751.
    • Holme´n, K. 1995. Report of the Eighth WMO Meeting of Experts on Carbon Dioxide Concentration and Isotopic Measurements Techniques, Boulder, CO, 6-11 July 1995. WMO Report No. 121 (ed. T. Conway).
    • Holme´n, K., Engardt, M. andOdh, S.-Å. 1995. The Carbon Dioxide Measurement Program at the Department of Meteorology at Stockholm University. Report CM-84. Department of Meteorology, Stockholm University, Stockholm.
    • IPCC 2001. Climate Change 2001: The Scientific Basis. Contribution of Working Group I to the Third Assessment Report of the Intergovernmental Panel on Climate Change (edsJ. T. Houghton, Y. Ding, D. J. Griggs, M. Noguer, P. J. van der Linden and co-editors). Cambridge University Press, Cambridge.
    • Kahaner, D., Moler, C. and Nash, S. 1989. Numerical Methods and Software. Prentice-Hall, Englewood Cliffs, NJ.
    • Keeling, C. D., Bacastow, R. B., Carter, A. F., Piper, S. C., Whorf, T. P. and co-authors 1989. A three-dimensional model of atmospheric CO2 transport based on observed winds (1). Analysis of observational data. In: Aspects of Climate Variability in the Pacific and Western Americas. Geophysical Monograph Series 55 (ed. D. H. Peterson). American Geophysical Union, Washington, DC, 165-236.
    • Keeling, C. D. and Whorf, T. P. 2000. Atmospheric CO2 records from sites in the SIO air sampling network. In: Trends: a Compendium of Data on Global Change. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, Oak Ridge, TN. http://cdiac.esd.ornl.gov/trends/trends.htm
    • Kjellstro¨m, E., Holme´n, K., Eneroth, K. and Engardt, M. 2002. Summertime Siberian CO2 simulations with the regional transport model MATCH: a feasibility study of carbon uptake calculations from EUROSIB data. Tellus 54B, 834-849.
    • Murayama, S., Taguchi, S. and Higuchi, K. 2004. Interannual variation in the atmospheric CO2 growth rate: role of atmospheric transport in the Northern Hemisphere. J. Geophys. Res. 109, D02305, doi:10.1029/2003JD003729.
    • Rayner, P. J., Enting, I. G., Francey, R. J. and Langenfelds, R. 1999. Reconstructing the recent carbon cycle from atmospheric CO2, δ13C and O2/N2 observations. Tellus 51B, 213-232.
    • Romesburg, H. C. 1984. Cluster Analysis for Researchers. Lifetime Learning Publications, Belmont, CA.
    • Rummukainen, M., Laurila, T. and Kivi, R. 1996. Yearly cycle of lower tropospheric ozone at the Arctic Circle. Atmos. Environ. 30, 1975- 1885.
    • Stohl, A., Haimberger, L., Scheele, M. P. and Wernli, H. 1999. An intercomparison of results from three trajectory models. Meteorol. Appl. 8, 127-135.
    • Stohl, A. and Koffi, N. E. 1998. Evaluation of trajectories calculated from ECMWF data against constant volume balloon flights during ETEX. Atmos. Environ. 24, 4151-4156.
    • Stunder, B. J. B. 1996. An assessment of the quality of forecast trajectories. J. Appl. Meteorol. 35, 1319-1331.
    • Tans, P. P., Thoning, K. W., Elliot, W. P. and Conway, T. J. 1989. Background Atmospheric CO2 Patterns from Weekly Flask Samples at Barrow, Alaska: Optimal Signal Recovery and Error Estimates. NOAA Technical Memorandum (ERL-ARL-173). Environmental Research Laboratory, Boulder, CO.
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