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EVALUATION OF PALEOCLIMATIC INFORMATION CONTENT OF THE δ18O INDICATOR BASED ON VARIATIONS IN THE ICE CORE OF THE ANTARCTIC VOSTOK STATION
Lomonosov Moscow State University, Faculty of Geography
Journal: Geophysical processes and biosphere
Tome: 24
Number: 3
Year: 2025
Pages: 36-45
UDK: 551.551.1 + 551.581
DOI: 10.21455/GPB2025.3-3
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Fedorov V.M. EVALUATION OF PALEOCLIMATIC INFORMATION CONTENT OF THE δ18O INDICATOR BASED ON VARIATIONS IN THE ICE CORE OF THE ANTARCTIC VOSTOK STATION
// . 2025. Т. 24. № 3. С. 36-45. DOI: 10.21455/GPB2025.3-3
@article{FedorovEVALUATION2025,
author = "Fedorov, V. M.",
title = "EVALUATION OF PALEOCLIMATIC INFORMATION CONTENT OF THE δ18O INDICATOR BASED ON VARIATIONS IN THE ICE CORE OF THE ANTARCTIC VOSTOK STATION
",
journal = "Geophysical processes and biosphere",
year = 2025,
volume = "24",
number = "3",
pages = "36-45",
doi = "10.21455/GPB2025.3-3",
language = "English"
}
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Keywords: Antarctic, Vostok station, ice core, isotopic composition, solar characteristics, range of oscillations, correlation.
Аnnotation: A comparative analysis of the energy of oscillations for characteristics of solar climate in the area of the Vostok station in Antarctic and the δ18O values of the Vostok ice core was carried out for the interval from 414.5 thousand years ago to the present. It was determined that the maximum range of oscillations of solar characteristics is one to three orders of magnitude greater than the maximum range of δ18O variations. A correlation analysis of solar climate characteristics and the δ18O values was performed. The average correlation coefficient by modulus was equal to 0.095. It was shown that the δ18O values in the Vostok station ice core are a set of relatively random numbers that do not reflect variations in the main external energy signal (changes in solar climate) that determines the dynamics of the thermal regime and paleoclimatic conditions in the Antarctic in Late Pleistocene.
