Abstract
Data on the content of the 14C cosmogenic isotope in tree rings, which were obtained as a result of laboratory measurements, are often used when solar activity (SA) is reconstructed for previous epochs, in which direct observations are absent. However, these data contain information not only about SA variations but also about changes in the Earth climatic parameters, such as the global temperature and the CO2 content in the Earth’s atmosphere. The effect of these variations on the 14C isotope content in different natural reservoirs after the last glacial termination to the middle of the Holocene is considered. The global temperature and the CO2 content increased on this time interval. In this case the 14C absolute content in the atmosphere increased on this time interval, even though the 14С to 12С isotope concentration ratio (as described by the Δ14С parameter) decreased. These variations in the radiocarbon absolute content can be caused by its redistribution between natural reservoirs. It has been indicated that such a redistribution is possible only when the rate of carbon exchange between the ocean and atmosphere depends on temperature. The values of the corresponding temperature coefficient for the 17–10 ka BC time interval, which make it possible to describe the carbon redistribution between the ocean and atmosphere, have been obtained.
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References
Byutner, E.K., Planetarnyi gazoobmen O 2 i CO 2 (Planetary Gas-Exchange of O2 and CO2), Leningrad: Gidrometeoizdat, 1986.
Dergachev, V.A. and Ostryakov, V.M., On the effect of temperature change on radiocarbon level in the Earth’s atmosphere, in Trudy 6 Vsesoyuznogo soveshchaniya po probleme “Astrofizicheskie yavleniya i radiouglerod”, Tbilisi, 13–15 oktyabrya 1976 g. (Proceedings of the 6th All-Union Meeting on the Problem “Astrophysical Phenomena and Radiocarbon”, Tbilisi, October 13–15, 1976), 1978, pp. 177–182.
Dorman, L.I., Distinctive features of the investigation of cosmic ray variations by the radiocarbon method, in Trudy 6 Vsesoyuznogo soveshchaniya po probleme “Astrofizicheskie yavleniya i radiouglerod”, Tbilisi, 13–15 oktyabrya 1976 g. (Proceedings of the 6th All-Union Meeting on the Problem “Astrophysical Phenomena and Radiocarbon”, Tbilisi, October 13–15, 1976), 1978, pp. 49–96.
Kudryavtsev, I.V., Dergachev, V.A., Nagovitsyn, Yu.A., Ogurtsov, M.G., and Junger, H., Influence of climatic factors on the past atmospheric content of the C-14 isotope, Geomagn. Aeron. (Engl. Transl.), 2013, vol. 53, no. 8, pp. 927–931.
Koudryavtsev, I.V., Dergachev, V.A., Nagovitsyn, Yu.A., Ogurtsov, M.G., and Junger, H., On the influence of climatic factors on the ratio between the cosmogenic isotope 14C and total carbon in the atmosphere in the past, Geohronometria, 2014, vol. 41, no. 3, pp. 216–222.
Kuleshova, A.I., Dergachev, V.A., Kudryavtsev, I.V., Nagovitsyn, Yu.A., and Ogurtsov, M.G., Possible influence of climate factors on the reconstruction of the cosmogenic isotope 14C production rate in the Earth’s atmosphere and solar activity in past epochs, Geomagn. Aeron. (Engl. Transl.), 2015, vol. 55, no. 8, pp. 1071–1075.
Malinin, V.N. and Obraztsova, A.A., Variability of carbon dioxide exchange in the ocean–atmosphere system, O-vo Sreda Razvit., 2011, no. 4, pp. 220–226.
Marcott, S.A. and Shakun, J.D., Holocene climate change and its context for the future, Pages Mag., 2015, vol. 23, no. 1, p. 28.
Monnin, E., Steig, E.J., Siegenthaler, U., et al., Evidence for substantial accumulation rate variability in Antarctica during the Holocene, through synchronization of CO2 in the Taylor Dome, Dome C and DML ice cores, Earth Planet. Sci. Lett., 2004, vol. 224, pp. 45–54.
Reimer, P.J., Baillie, M.G.L., Bard, E., et al., IntCal09 and Marine09 radiocarbon age calibration curves, 0–50000 years cal BP, Radiocarbon, 2009, vol. 51, pp. 1111–1150.
Roth, R. and Joos, F., A reconstruction of radiocarbon production and total solar irradiance from the Holocene 14C and CO2 records: Implications of data and model uncertainties, Clim. Past, 2013, vol. 9, pp. 1879–1909.
Takahashi, T., Olafson, J., Goddard, J.G., Chipman, D.W., and Sutherland, S.C., Seasonal variation of CO2 and nutrients in the high-latitude surface oceans: A comparative study, Global Biogeochem. Cycles, 1993, vol. 7, no. 4, pp. 843–878.
Takahashi, T., Sutherland, S.C., Wanninkhof, R., et al., Climatological mean and decadal change in surface ocean pCO2, and net sea-air CO2 flux over the global oceans, Deep Sea Res., Part II, 2009, vol. 56, pp. 554–577.
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Kudryavtsev, I.V., Volobuev, D.M., Dergachev, V.A. et al. Reconstructions of the 14С cosmogenic isotope content from natural archives after the last glacial termination. Geomagn. Aeron. 56, 858–862 (2016). https://doi.org/10.1134/S0016793216070112
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DOI: https://doi.org/10.1134/S0016793216070112