The Earth’s climate change in the 13th–15th millennia BC. Possible cause

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Data on the content of the cosmogenic isotope 14C in the Earth’s atmosphere make it possible to study variations in solar activity in past epochs. However, changes in the Earth’s climate over time also lead to a distortion of information about solar activity. This paper examines the time interval from the end of the 17th to the beginning of the 10th millennium BC. During this time, as is known, there were several periods of climate change on Earth. There were several warming events (Mayendorf, Allered) and cooling events (the Oldest, Ancient, and Late Dryas). The reasons for these changes have not yet been determined. It is shown that a possible cause of the cooling during the Ancient Dryas could be a decrease in solar activity.

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Sobre autores

I. Kudryavtsev

Ioffe Institute, Russian Academy of Sciences; Central Astronomical Observatory of the Russian Academy of Sciences at Pulkovo

Autor responsável pela correspondência
Email: igor.koudriavtsev@mail.ioffe.ru
Rússia, St. Petersburg; St. Petersburg

V. Dergachev

Ioffe Institute, Russian Academy of Sciences

Email: v.dergachev@mail.ioffe.ru
Rússia, St. Petersburg

Yu. Nagovitsyn

State University of Aerospace Instrumentation

Email: nag-yury@yandex.ru
Rússia, St. Petersburg

Bibliografia

  1. Kudryavtsev I.V., Dergachev V.A. Reconstruction of heliospheric modulation potential based on radiocarbon data in the time interval 17 000–5000 years B.C. // Geomagn. Aeronomy. V. 59. № 8. P. 1099–1102. 2019. https://doi.org/10.1134/S0016793219080115
  2. Kudryavtsev I.V., Dergachev V.A., Nagovitsyn Yu.A. Reconstructions of the heliospheric modulation potential and Earth climate variations over the past 20000 years // Geomagn. Aeronomy. V. 62. № 7. P. 851–858. 2022. https://doi.org/10.1134/S0016793222070155
  3. Kuleshova A.I., Dergachev V.A., Kudryavtsev I.V., Nagovitsyn Yu.A., Ogurtsov M.G. Possible influence of climate factors on the reconstruction of the cosmogenic isotope C14 production rate in the Earth’s atmosphere and solar activity in past epochs // Geomagn. Aeronomy. V. 55. № 8. P. 1071–1075. 2015. https://doi.org/10.1134/S0016793215080174
  4. Marcott S.A., Shakun J.D. Holocene climate change and its context for the future // Past Global Changes Magazine. V. 23. № 1. P. 28. 2015. https://doi.org/10.22498/pages.23.1.28
  5. Monnin E. 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. Sc. Lett. V. 224. № 1–2. P. 45–54. 2004. https://doi.org/10.1016/j.epsl.2004.05.007
  6. Reimer P.J. et al. IntCal13 and MARINE13 radiocarbon age calibration curves 0–50000 years cal BP // Radiocarbon. V. 55. № 4. P. 1869–1887. 2013. https://doi.org/10.2458/azu_js_rc.55.16947
  7. Roth R., Joos F. A reconstruction of radiocarbon production and total solar irradiance from the Holocene C14 and CO2 records: implications of data and model uncertainties // Clim. Past. V. 9. № 4. P. 1879–1909. 2013. https://doi.org/10.5194/cp-9-1879-2013
  8. Shakun J.D., Clark P.U., He F., Marcott S.A., Mix A.C., Liu Z., Otto-Bliesner B., Schmittner A., Bard E. Global warming preceded by increasing carbon dioxide concentrations during the last deglaciation // Nature. V. 484. P. 49–54. 2012. https://doi.org/10.1038/nature10915
  9. Solanki S.K. Usoskin I.G., Kromer B., Schüssler M., Beer J. Unusual activity of the Sun during recent decades compared to the previous 11,000 years // Nature. V. 431. № 7012. P. 1084‒1087. 2004. https://doi.org/10.1038/nature02995
  10. Svensson A. et al. A 60000 year Greenland stratigraphic ice core chronology // Clim. Past. V. 4. № 1. P. 47–57. 2008. https://doi.org/10.5194/cp-4-47-2008
  11. Usoskin I.G., Solanki S.K., Korte M. Solar activity reconstructed over the last 7000 years: The influence of geomagnetic field changes // Geophys. Res. Lett. V. 33. № 8. ID L08103. 2006. https://doi.org/10.1029/2006GL025921
  12. Wu C.J., Usoskin I.G., Krivova N., Kovaltsov G.A., Baroni M., Bard E., Solanki S.K. Solar activity over nine millennia: A consistent multi-proxy reconstruction // Astron. Astrophys. V. 615. ID A93. 2018. https://doi.org/ 10.1051/0004-6361/201731892

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2. Fig. 1. Changes in the content of the isotope 18O in the Greenland glacier (a) [Svensson et al., 2008] and global temperature (b) [Shakun et al., 2012].

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3. Fig. 2. Relative change in the content of the cosmogenic isotope 14C in the Earth’s atmosphere (a) [Reimer et al., 2013]; change in the content of CO2 in the atmosphere (b) and surface concentration of the isotope 14C in the Earth’s atmosphere as part of CO2 (c).

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4. Fig. 3. Reconstruction of the heliospheric modulation potential.

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