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Original Research Papers

Tropospheric carbon dioxide concentrations at a northern boreal site in Finland: basic variations and source areas

Authors:

T. Aalto ,

Finnish Meteorological Institute, Air Quality Research, FI
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J. Hatakka,

Finnish Meteorological Institute, Air Quality Research, FI
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J. Paatero,

Finnish Meteorological Institute, Air Quality Research, FI
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J.-P. Tuovinen,

Finnish Meteorological Institute, Air Quality Research, FI
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M. Aurela,

Finnish Meteorological Institute, Air Quality Research, FI
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T. Laurila,

Finnish Meteorological Institute, Air Quality Research, FI
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K. Holmén,

Department of Meteorology, Arrhenius Laboratory, Stockholm University, SE
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N. Trivett,

Retired, earlier in Air Quality Measurements and Analysis Research Division, Atmospheric Environment Service, Environment Canada, CA
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Y. Viisanen

Finnish Meteorological Institute, Air Quality Research, FI
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Abstract

Diurnal and annual variations of CO2, O3, SO2, black carbon and condensation nuclei and their source areas were studied by utilizing air parcel trajectories and tropospheric concentration measurements at a boreal GAW site in Pallas, Finland. The average growth trend of CO2 was about 2.5 ppm yr−1 according to a 4-yr measurement period starting in October 1996. The annual cycle of CO2 showed concentration difference of about 19 ppm between the summer minimum and winter maximum. The diurnal cycle was most pronounced during July and August. The variation between daily minimum and maximum was about 5 ppm. There was a diurnal cycle in aerosol concentrations during spring and summer. Diurnal variation in ozone concentrations was weak. According to trajectory analysis the site was equally affected by continental and marine air masses. During summer the contribution of continental air increased, although the southernmost influences decreased. During daytime in summer the source areas of CO2 were mainly located in the northern parts of the Central Europe, while during winter the sources were more evenly distributed. Ozone showed similar source areas during summer, while during winter, unlike CO2, high concentrations were observed in air arriving from the sea. Sulfur dioxide sources were more northern (Kola peninsula and further east) and CO2 sources west-weighted in comparison to sources of black carbon. Source areas of black carbon were similar to source areas of aerosols during winter. Aerosol source area distributions showed signs of marine sources during spring and summer.

How to Cite: Aalto, T., Hatakka, J., Paatero, J., Tuovinen, J.-P., Aurela, M., Laurila, T., Holmén, K., Trivett, N. and Viisanen, Y., 2002. Tropospheric carbon dioxide concentrations at a northern boreal site in Finland: basic variations and source areas. Tellus B: Chemical and Physical Meteorology, 54(2), pp.110–126. DOI: http://doi.org/10.3402/tellusb.v54i2.16652
  Published on 01 Jan 2002
 Accepted on 17 Dec 2001            Submitted on 12 Mar 2001

References

  1. Ahonen , T. , Aalto , P. , Rannik , U. , Kulmala , M. , Nilsson , E. D. , Palmroth , S. , Ylitalo , H. and Hari , P . 1997 . Variations and vertical profiles of trace gas and aerosol concentrations and CO2 exchange in Eastern Lapland. Atmos. Environ . 31 , 3351 – 3362 .  

  2. Andres , R. J. , Marland , G. , Fung , I. and Matthews , E . 1996 . A 10 x 10 distribution of carbon dioxide emis-sions from fossil fuel consumption and cement manu-facture, 1950-1990. Global Biogeochem. Cycles 10 , 419 – 429 .  

  3. Andres , R. J. , Fielding , D. J. , Marland , G. , Boden , T. A. , Kumar , N. and Kearney , A. T . 1999 . Carbon dioxide emissions from fossil-fuel use, 1751-1950. Tellus 51B , 759 – 765 .  

  4. Aurela , M. , Laurila , T. and Tuovinen , J-P . 2001 . Seasonal CO2 balances of a subarctic mire. J. Geophys. Res . 106 , 1623 – 1637 .  

  5. Bakwin , P. S. , Tans , P. P. , Hurst , D. F. and Zhao , G . 1998 . Measurements of carbon dioxide on very tall towers: results of the NOAA/CMDL program. Tellus 50B , 401 – 415 .  

  6. Bonan , G. B. Chapin , F. S. and Thompson , S. L . 1995 . Boreal forest and tundra ecosystems as components of the climate system. Climatic Change 29 , 145 – 167 .  

  7. Bousquet , P. Peylin , P. Ciais , P. Ramonet , M. and Monfray , P. 1999 . Inverse modeling of annual atmospheric CO2 sources and sinks. Part 2: Sensitivity study. J. Geophys. Res . 104 , 26,179 - 26,193 .  

  8. Colombo , T. , Santaguida , R. , Capasso , A. , Calzolari , F. , Evangelisti , F. and Bonasoni , P . 2000 . Biospheric influence on carbon dioxide measurements in Italy. Atmos. Environ . 34 , 4963 – 4969 .  

  9. Conway , T. J. , Tans , P. P. , Waterman , L. S. , Thoning , K. W. , Kitzis , D. R. , Masarie , K. A. and Zhang , N . 1994 . Evidence for interannual variability of the carbon cycle from the National Oceanic and Atmo-spheric Administration/Climate Monitoring and Diagnostics Laboratory Global Air Sampling Network. J. Geophys. Res . 99 , 22 , 831-22 , 855 .  

  10. Cooke , W. F. and Wilson , J. J. N . 1996 . A global black carbon aerosol model. J. Geophys. Res . 101 , 19 , 395-19 , 409 .  

  11. Ciais , P. , Tans , P. P. , Trolier , M. , White , J. W. C. and Francey , R. J . 1995 . A large northern hemisphere terrestrial sink indicated by the “C/12C ratio of atmospheric CO2. Science 269 , 1098 – 1101 .  

  12. Engardt , M. and Holmén , K . 1999 . Model simulations of anthropogenic CO2 transport to an Arctic moni-toring station during winter. Tellus 51B, 194-209.  

  13. Fan , S. , Gloor , M. , Mahlman , J. , Pacala , S. , Sarmiento , J. , Takahashi , T. and Tans , P. 1998. A large terrestrial carbon sink in north America implied by atmospehric and oceanic carbon dioxide data and models. Science 282 , 442 – 446 .  

  14. Gloor , M. , Fan , S. Pacala , S. Sarmiento , J. and Ramonet , M. 1999. A model-based evaluation of inver-sions of atmospheric transport, using annual mean mixing ratios, as a tool to monitor fluxes of nonreact-ive trace substances like CO2 on a continental scale. J. Geophys. Res . 104 , 14,245 - 14,260 .  

  15. Hatakka , J. , Trivett , N. , Paatero , J. , Laurila , T. and Viisanen , Y . 2001 . GAW research programme at Pallas, Finland . WMO Report (in press).  

  16. Intergovernmental Panel on Climate Change (IPCC) . 2001 . Climate change 2001: the scientific basis , Cambridge University Press, New York.  

  17. Kahaner , D. , Moler , C. and Nash , S . 1989 . Numerical methods and software, Prentice-Hall Inc., Englewood Cliffs , NJ .  

  18. Keeling , C. D . 1995 . Interannual extremes in the rate of rise of atmospheric carbon dioxide since 1980. Nature 375 , 666 – 670 .  

  19. Laurila , T. and Hakola , H . 1996 . Seasonal cycle of C2-05 hydrocarbons over the Baltic Sea and Northern Fin-land. Atmos. Environ . 30 , 1597 – 1607 .  

  20. Laurila , T . 1999 . Observational study of transport and photochemical formation of ozone over Northern Europe. J. Geophys. Res . 104 , 26 , 235-26 , 243 .  

  21. Laurila , T. , Soegaard , H. , Lloyd , C. R. , Aurela , M. , Tuovinen , J-P. and Nordstroem , C . 2001 . Seasonal variations of net CO2 exchange in European Arctic ecosystems. Theor. Appl. Climatol. 70, 183-201.  

  22. Levin , I. , Graul , R. and Trivett , N. B. A. 1995. Long-term observations of atmospheric CO2 and carbon isotopes at continental sites in Germany. Tellus 47B , 23 – 34 .  

  23. Logan , J. A . 1985 . Tropospheric ozone: seasonal behavior, trends, and anthropogenic influence. J. Geophys. Res . 90 , 10,463 - 10,482 .  

  24. Markkanen , T. , Rannik , U. , Keronen , P. , Suni , T. and Vesala , T. 200O. Eddy covariance fluxes over a boreal Scots pine forest. Boreal Environ. Res . 6 , 65 - 78 .  

  25. Olson , M. P. , Oikawa , K. K. and Macfee , A. W . 1978 . A trajectory model applied to the long range transport of air pollutants: a technical description and some model comparisons . Report LRTAP 78-4, Atmospheric Environment Service, Downsview, Ontario , Canada .  

  26. Paatero , J. and Hatakka , J . 2000 . Source areas of air-borne 7Be and 210Pb measured in Northern Finland. Health Phys . 79 , 691 – 696 .  

  27. Paatero , J. , Hatakka , J. and Viisanen , Y . 1999 . Meteoro-logical aspects of radon-222 concentrations in the air at the Pallas GAW station, northern Finland. J. Aerosol Sci . 30 , S603—S604 .  

  28. Pollanen , R. , Valkama , I. and Toivonen , H. 1997. Trans-port of radioactive particles from the Chernobyl acci-dent. Atmos. Environ . 31 , 3575 - 2590 .  

  29. Rahn , K. A. , Joranger , E. , Semb , A. and Conway , T. J . 1980 . High winter concentrations of SO2 in the Norwegian Arctic and transport from Eurasia. Nature 287 , 824 – 826 .  

  30. Rinne , J. , Tuovinen , J.-P. , Laurila , T. , Hakola , H. , Aurela , M. and Hypen , H. 2000. Measurements of hydrocarbon fluxes by a gradient method above a northern boreal forest. Agric. Forest Meteorol . 102 , 25 - 37 .  

  31. Rummukainen , M. , Laurila , T. and Kivi , R . 1996 . Yearly cycle of lower tropospheric ozone at the arctic circle. Atmos. Environ . 30 , 1875 – 1885 .  

  32. Seibert , P. , Kromb-Kolb , H. , Baltensperger , U. , Jost , D. T. , Schwikowski , M. , Kasper , A. and Puxbaum , H . 1994 . Trajectory analysis of aerosol measurements at high alpine sites. In: Transport and transformation of pollutants in the troposphere (eds. P. M. Borrell, P. Borrell, T. Cvitas and W. Seiler), Academic Pub-lishing, Den Haag, 689 - 693 .  

  33. Seinfeld , J. H. and Pandis , S. N . 1998 . Atmospheric chemistry and physics: from air pollution to climate change. Wiley & Sons , New York .  

  34. Stohl , A . 1996 . Trajectory statistics — a new method to establish source—receptor relationships of air pollut-ants and its application to the transport of particulate sulfate in Europe. Atmos. Environ . 30 , 579 – 587 .  

  35. Stohl , A . 1998 . Computation, accuracy and applications of trajectories — s review and bibliography. Atmos. Environ . 32 , 947 – 966 .  

  36. 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 Tech. Memo. (ERL-ARL-173), Environmental Research Labora-tory, Boulder, Colorado, 131 pp.  

  37. Tuovinen , J.-P. , Laurila , T. , Lättild , H. , Ryaboshapko , A. , Brukhanov , P. and Korolev , S . 1993 . Impact of the sulphur dioxide sources in the Kola Peninsula on air quality in northernmost Europe. Atmos. Environ . 27A , 1379 – 1395 .  

  38. Virkkula , A. , Hillamo , R. E. , Kerminen , V-M. and Stohl , A . 1998 . The influence of Kola Peninsula, con-tinental European and marine sources on the number concentrations and scattering coefficients of the atmo-spheric aerosol in Finnish Lapland. Boreal Environ. Res . 2 , 317 – 336 .  

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