Abstract
Measurements of changes in atmospheric molecular oxygen using a new interferometric technique show that the O2 content of air varies seasonally in both the Northern and Southern Hemispheres and is decreasing from year to year. The seasonal variations provide a new basis for estimating global rates of biological organic carbon production in the ocean, and the interannual decrease constrains estimates of the rate of anthropogenic CO2 uptake by the oceans.
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References
Keeling, C. D. et al. in Aspects of Climate Variability in the Pacific and the Western Americas, Geophys. Monogr. 55 (ed. Peterson, D. H.) 165–236 (American Geophysical Union, Washington DC, 1989).
Tans, P. P., Fung, I. Y. & Takahashi, T. Science 247, 1431–1438 (1990).
Broecker, W. S. & Peng, T.-H. Tracers in the Sea (Lamont-Doherty Geological Observatory, New York, 1982).
Liss, P. S. & Merlivat, L. in The Role of Air-Sea Exchange in Geochemical Cycling (ed. P. Buat-Menard) 113–127 (Reidel, Dordrecht, 1986).
Keeling, R. F., Bender, M. M., Najjar, R. G. & Tans, P. P. Glob. biogeochem. Cycles (submitted).
Benedict, F. G. The Composition of the Atmosphere with Special Reference to its Oxygen Content (Carnegie Institution of Washington, Washington DC, 1912).
Machta, L. & Hughes, E. Science 168, 1582–1584 (1970).
Keeling, R. F. thesis, Harvard Univ. (1988).
Keeling, R. F. J. atmos. Chem. 7, 153–176 (1988).
Broecker, W. S. Science 168, 1537–1538 (1970).
Heimann, M., Keeling, C. D. & Tucker, C. J. in Aspects of Climate Variability in the Pacific and the Western Americas, Geophys. Monogr. 55 (ed. Peterson. D. H.) 277–303 (American Geophysical Union, Washington DC, 1989).
Jenkins, W. J. & Goldman, J. C. J. mar. Res. 43, 465–491 (1985).
Takahashi, T., Goddard, J., Chipman, D. W., Sutherland, S. C. & Mathieu, G. Final Tech. Rep. to DOE under contract 19X-SC428C, 1–111 (Lamont Doherty Geological Observatory, New York, 1991).
Tans, P. P., Conway, T. J. & Nakazawa, T. J. geophys. Res. 94, 5151–5172 (1989).
Dugdale, R. C. & Goering, J. J. Limnol. Oceanogr. 23, 196–206 (1967).
Emerson, S. J. geophys. Res. 92, 6535–6544 (1987).
Laws, E. A. Deep-Sea Res. 38, 143–167 (1991).
Eppley, R. & Peterson, B. J. Nature 282, 677–680 (1979).
Martin, J. M., Knauer, G. A., Karl, D. M. & Broenkow, W. W. Deep-Sea Res. 34, 267–285 (1987).
Najjar, R. G. Sarmiento, J. L. & Toggweiler, J. R. Glob. biogeochem. Cycles 6, 45–76 (1992).
Samuels, B. L. & Cox, M. Ocean Model. 75, 1–3 (1987).
Weiss, R. F. Deep-Sea Res. 17, 721–735 (1970).
Marland, G. & Boden, T. in Trends 91: A Compendium of Data on Global Change. ORNL/CDIAC-46 (eds Boden, T. A., Sepanski, R. J. & Stoss, F. W.) 389 (CDIAC, Oak Ridge Tennessee, 1991).
Peng, T. H., Takahashi, T., Broecker, W. S. & Olafsson, J. Tellus B39, 439–458 (1987).
Asper, V. L., Deuser, W. G., Knauer, G. A. & Lohernz, S. E. Nature 357, 670–672 (1992).
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Keeling, R., Shertz, S. Seasonal and interannual variations in atmospheric oxygen and implications for the global carbon cycle. Nature 358, 723–727 (1992). https://doi.org/10.1038/358723a0
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DOI: https://doi.org/10.1038/358723a0
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