publication . Article . 2013

Atmospheric Δ14CO2 trend in Western European background air from 2000 to 2012

Ingeborg Levin; Bernd Kromer; Samuel Hammer;
Open Access English
  • Published: 01 Mar 2013 Journal: Tellus B (issn: 1600-0889, eissn: 0280-6509, Copyright policy)
  • Publisher: Tellus B
Abstract
Long-term measurements of atmospheric Δ14CO2 from two monitoring stations, one in the European Alps (Jungfraujoch, Switzerland) and the other in the Black Forest (Schauinsland, Germany), are presented. Both records show a steady decrease, changing from about 6‰ per year at the beginning of the century to only 3‰ per year on average in the last 4 yr. A significant seasonal variation of Δ14CO2 is observed at both sites with maxima during late summer and minima in late winter/early spring. While the Δ14C maxima are similar at Jungfraujoch and Schauinsland, the minima at Schauinsland are lower by up to 10‰, due to a larger influence from 14C-free fossil fuel CO2 emi...
Subjects
free text keywords: Meteorology. Climatology, QC851-999, carbon dioxide, clean air reference, atmospheric chemistry, atmospheric carbon dioxide, bomb radiocarbon dating, radiocarbon
Related Organizations
Funded by
EC| ICOS
Project
ICOS
Integrated Carbon Observation System
  • Funder: European Commission (EC)
  • Project Code: 211574
  • Funding stream: FP7 | SP4 | INFRA
28 references, page 1 of 2

Czeplak, G. and Junge, C. 1974. Studies of interhemispheric exchange in the troposphere by a diffusion model. Adv. Geophys. 18, 57 72.

Do¨ rr, H. and Mu¨ nnich, K. O. 1986. Annual variations of the 14C content of soil CO2. Radiocarbon 28(2A), 338 345.

Graven, H. D., Guilderson, T. P. and Keeling, R. F. 2012. Observations of radiocarbon in CO2 at La Jolla, California, USA 1992 2007. J. Geophys. Res. 117, D02302. DOI: 10.1029/ 2011JD016533.

Johnston, H. S. 1989. Evaluation of excess carbon-14 and strontium-90 data for suitability to test two-dimensional stratospheric models. J. Geophys. Res. 94, 18485 18493.

Kromer, B. and Mu¨ nnich, K. O. 1992. CO2 gas proportional counting in Radiocarbon dating review and perspective. In: Radiocarbon after four decades (eds. R. E. Taylor, A. Long and R. S. Kra), Springer-Verlag, New York, pp. 184 197.

Levin, I., Hammer, S., Eichelmann, E. and Vogel, F. 2011. Verification of greenhouse gas emission reductions: the prospect of atmospheric monitoring in polluted areas. Philosophical Transactions A 369, 1906 1924. [OpenAIRE]

Levin, I., Hammer, S., Kromer, B. and Meinhardt, F. 2008. Radiocarbon observations in atmospheric CO2: determining fossil fuel CO2 over Europe using Jungfraujoch observations as background. Sci. Total. Environ. 391, 211 216. DOI: 10.1016/ j.scitotenv.2007.10.019.

Levin, I. and Kromer, B. 2004. The tropospheric 14CO2 level in mid-latitudes of the Northern Hemisphere (1959 2003). Radiocarbon 46(3), 1261 1272.

Levin, I., Kromer, B., Schmidt, M. and Sartorius, H. 2003. A novel approach for independent budgeting of fossil fuel CO2 over Europe by 14CO2 observations. Geophys. Res. Lett. 30(23), 2194. DOI: 10.1029/2003GL018477. [OpenAIRE]

Levin, I., Mu¨ nnich, K. O. and Weiss, W. 1980. The effect of anthropogenic CO2 and 14C sources on the distribution of 14CO2 in the atmosphere. Radiocarbon 22, 379 391.

Levin, I., Naegler, T., Kromer, B., Diehl, M., Francey, R. J. and co-authors. 2010. Observations and modelling of the global distribution and long-term trend of atmospheric 14CO2. Tellus 62B, 26 46. DOI: 10.1111/j.1600-0889.2009.00446.x.

Maier-Reimer, E. and Hasselmann, K. 1987. Transport and storage of CO2 in the ocean an inorganic ocean-circulation carbon cycle model. Clim. Dyn. 2, 63 90.

Naegler, T. 2009. Reconciliation of excess 14C-based global CO2 piston velocity estimates. Tellus 61B, 372 384. DOI: 10.1111/ j.1600-0889.2008.00408.x.

Naegler, T. and Levin, I. 2009. Biosphere-atmosphere gross carbon exchange flux and the d13CO2 and D14CO2 disequilibria constrained by the biospheric excess radiocarbon inventory. J. Geophys. Res. 114, D17303. DOI: 10.1029/2008JD011116. [OpenAIRE]

Nakazawa, T., Ishizawa, M., Higuchi, K. and Trivett, N. B. A. 1997. Two curve fitting methods applied to CO2 flask data. Environmetrics 8, 197 218.

28 references, page 1 of 2
Abstract
Long-term measurements of atmospheric Δ14CO2 from two monitoring stations, one in the European Alps (Jungfraujoch, Switzerland) and the other in the Black Forest (Schauinsland, Germany), are presented. Both records show a steady decrease, changing from about 6‰ per year at the beginning of the century to only 3‰ per year on average in the last 4 yr. A significant seasonal variation of Δ14CO2 is observed at both sites with maxima during late summer and minima in late winter/early spring. While the Δ14C maxima are similar at Jungfraujoch and Schauinsland, the minima at Schauinsland are lower by up to 10‰, due to a larger influence from 14C-free fossil fuel CO2 emi...
Subjects
free text keywords: Meteorology. Climatology, QC851-999, carbon dioxide, clean air reference, atmospheric chemistry, atmospheric carbon dioxide, bomb radiocarbon dating, radiocarbon
Related Organizations
Funded by
EC| ICOS
Project
ICOS
Integrated Carbon Observation System
  • Funder: European Commission (EC)
  • Project Code: 211574
  • Funding stream: FP7 | SP4 | INFRA
28 references, page 1 of 2

Czeplak, G. and Junge, C. 1974. Studies of interhemispheric exchange in the troposphere by a diffusion model. Adv. Geophys. 18, 57 72.

Do¨ rr, H. and Mu¨ nnich, K. O. 1986. Annual variations of the 14C content of soil CO2. Radiocarbon 28(2A), 338 345.

Graven, H. D., Guilderson, T. P. and Keeling, R. F. 2012. Observations of radiocarbon in CO2 at La Jolla, California, USA 1992 2007. J. Geophys. Res. 117, D02302. DOI: 10.1029/ 2011JD016533.

Johnston, H. S. 1989. Evaluation of excess carbon-14 and strontium-90 data for suitability to test two-dimensional stratospheric models. J. Geophys. Res. 94, 18485 18493.

Kromer, B. and Mu¨ nnich, K. O. 1992. CO2 gas proportional counting in Radiocarbon dating review and perspective. In: Radiocarbon after four decades (eds. R. E. Taylor, A. Long and R. S. Kra), Springer-Verlag, New York, pp. 184 197.

Levin, I., Hammer, S., Eichelmann, E. and Vogel, F. 2011. Verification of greenhouse gas emission reductions: the prospect of atmospheric monitoring in polluted areas. Philosophical Transactions A 369, 1906 1924. [OpenAIRE]

Levin, I., Hammer, S., Kromer, B. and Meinhardt, F. 2008. Radiocarbon observations in atmospheric CO2: determining fossil fuel CO2 over Europe using Jungfraujoch observations as background. Sci. Total. Environ. 391, 211 216. DOI: 10.1016/ j.scitotenv.2007.10.019.

Levin, I. and Kromer, B. 2004. The tropospheric 14CO2 level in mid-latitudes of the Northern Hemisphere (1959 2003). Radiocarbon 46(3), 1261 1272.

Levin, I., Kromer, B., Schmidt, M. and Sartorius, H. 2003. A novel approach for independent budgeting of fossil fuel CO2 over Europe by 14CO2 observations. Geophys. Res. Lett. 30(23), 2194. DOI: 10.1029/2003GL018477. [OpenAIRE]

Levin, I., Mu¨ nnich, K. O. and Weiss, W. 1980. The effect of anthropogenic CO2 and 14C sources on the distribution of 14CO2 in the atmosphere. Radiocarbon 22, 379 391.

Levin, I., Naegler, T., Kromer, B., Diehl, M., Francey, R. J. and co-authors. 2010. Observations and modelling of the global distribution and long-term trend of atmospheric 14CO2. Tellus 62B, 26 46. DOI: 10.1111/j.1600-0889.2009.00446.x.

Maier-Reimer, E. and Hasselmann, K. 1987. Transport and storage of CO2 in the ocean an inorganic ocean-circulation carbon cycle model. Clim. Dyn. 2, 63 90.

Naegler, T. 2009. Reconciliation of excess 14C-based global CO2 piston velocity estimates. Tellus 61B, 372 384. DOI: 10.1111/ j.1600-0889.2008.00408.x.

Naegler, T. and Levin, I. 2009. Biosphere-atmosphere gross carbon exchange flux and the d13CO2 and D14CO2 disequilibria constrained by the biospheric excess radiocarbon inventory. J. Geophys. Res. 114, D17303. DOI: 10.1029/2008JD011116. [OpenAIRE]

Nakazawa, T., Ishizawa, M., Higuchi, K. and Trivett, N. B. A. 1997. Two curve fitting methods applied to CO2 flask data. Environmetrics 8, 197 218.

28 references, page 1 of 2
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publication . Article . 2013

Atmospheric Δ14CO2 trend in Western European background air from 2000 to 2012

Ingeborg Levin; Bernd Kromer; Samuel Hammer;