CLIMATIC VARIABILITY IN THE ERA OF MIS‑11 (370–440 KA BP) ACCORDING TO ISOTOPE COMPOSITION (ΔD, Δ18O, Δ17O) OF ICE FROM THE VOSTOK STATION CORES

The results of detailed isotopic studies of ice core samples from the Vostok station (East Antarctica) related to the MIS-11 era (the 11th sea isotope stage, i.e. 370–440 thousand years ago) are presented. Reconstruction of paleoclimatic conditions in this period of time was performed using the meth...

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Published in:Ice and Snow
Main Authors: A. Veres N., A. Ekaykin A., D. Vladimirova O., A. Kozachek V., V. Lipenkov Ya., A. Skakun A., А. Верес Н., А. Екайкин А., Д. Владимирова О., А. Козачек В., В. Липенков Я., А. Скакун А.
Format: Article in Journal/Newspaper
Language:Russian
Published: IGRAS 2018
Subjects:
Antarctica
ice cores
Marine Isotope Stage 11
paleoclimate
stable water isotopes
Антарктида
ледяной керн
морская изотопная стадия 11
палеоклимат
стабильные изотопы воды
East Antarctica
Vostok Station
Antarc*
Arctic
ice core
North Atlantic
Online Access:https://ice-snow.igras.ru/jour/article/view/449
https://doi.org/10.15356/2076-6734-2018-2-149-158
id ftjias:oai:oai.ice.elpub.ru:article/449
record_format openpolar
institution Open Polar
collection Ice and Snow (E-Journal)
op_collection_id ftjias
language Russian
topic Antarctica
ice cores
Marine Isotope Stage 11
paleoclimate
stable water isotopes
Антарктида
ледяной керн
морская изотопная стадия 11
палеоклимат
стабильные изотопы воды
spellingShingle Antarctica
ice cores
Marine Isotope Stage 11
paleoclimate
stable water isotopes
Антарктида
ледяной керн
морская изотопная стадия 11
палеоклимат
стабильные изотопы воды
A. Veres N.
A. Ekaykin A.
D. Vladimirova O.
A. Kozachek V.
V. Lipenkov Ya.
A. Skakun A.
А. Верес Н.
А. Екайкин А.
Д. Владимирова О.
А. Козачек В.
В. Липенков Я.
А. Скакун А.
CLIMATIC VARIABILITY IN THE ERA OF MIS‑11 (370–440 KA BP) ACCORDING TO ISOTOPE COMPOSITION (ΔD, Δ18O, Δ17O) OF ICE FROM THE VOSTOK STATION CORES
topic_facet Antarctica
ice cores
Marine Isotope Stage 11
paleoclimate
stable water isotopes
Антарктида
ледяной керн
морская изотопная стадия 11
палеоклимат
стабильные изотопы воды
description The results of detailed isotopic studies of ice core samples from the Vostok station (East Antarctica) related to the MIS-11 era (the 11th sea isotope stage, i.e. 370–440 thousand years ago) are presented. Reconstruction of paleoclimatic conditions in this period of time was performed using the method of interpretation of the results of isotopic studies of ice, developed by the authors of the article, which is based on the joint analysis of three independent parameters: δD, d-excess, 17O-excess. The isotopic composition (δD) and the deuterium excess depend on the following three meteorological parameters – the condensation temperature near the Vostok station, relative humidity, and the sea surface temperature at the source of moisture, whereas 17O-excess depends only on the first two parameters. Accordingly, the proposed method of interpretation allows reconstructing the paleoclimatic conditions (the condensation temperature and surface air temperature at the Vostok station; sea surface temperature and relative humidity above the ocean) in two different regions in past epochs. For the first time, data on minor fluctuations in the relative humidity of the air in themoisture source throughout the MIS-11 era were obtained. The data resulted from the interpretation demonstrated that the relative humidity fluctuated within the measurement error of ±5%. Reconstructed climatic conditions in the era of MIS-11 were compared with published data for stations Vostok and Concordia, aswell as with the marine core data from 94-607 DSDP and ODP 177-1090. The results obtained on the basis of isotopic analysis of ice cores from stations Vostok and Concordia indicated that in the optimum MIS-11the air temperature was4 °C higher, and in the Termination V –8 °C lower than the present-day values. Thesimilarity of data between the marine columns DSDP 94-607 (North Atlantic), ODP 177-1090 (South Ocean)and our results points to the global nature of changes in the sea surface temperature during the MIS-11 era. The coordination of the ...
format Article in Journal/Newspaper
author A. Veres N.
A. Ekaykin A.
D. Vladimirova O.
A. Kozachek V.
V. Lipenkov Ya.
A. Skakun A.
А. Верес Н.
А. Екайкин А.
Д. Владимирова О.
А. Козачек В.
В. Липенков Я.
А. Скакун А.
author_facet A. Veres N.
A. Ekaykin A.
D. Vladimirova O.
A. Kozachek V.
V. Lipenkov Ya.
A. Skakun A.
А. Верес Н.
А. Екайкин А.
Д. Владимирова О.
А. Козачек В.
В. Липенков Я.
А. Скакун А.
author_sort A. Veres N.
title CLIMATIC VARIABILITY IN THE ERA OF MIS‑11 (370–440 KA BP) ACCORDING TO ISOTOPE COMPOSITION (ΔD, Δ18O, Δ17O) OF ICE FROM THE VOSTOK STATION CORES
title_short CLIMATIC VARIABILITY IN THE ERA OF MIS‑11 (370–440 KA BP) ACCORDING TO ISOTOPE COMPOSITION (ΔD, Δ18O, Δ17O) OF ICE FROM THE VOSTOK STATION CORES
title_full CLIMATIC VARIABILITY IN THE ERA OF MIS‑11 (370–440 KA BP) ACCORDING TO ISOTOPE COMPOSITION (ΔD, Δ18O, Δ17O) OF ICE FROM THE VOSTOK STATION CORES
title_fullStr CLIMATIC VARIABILITY IN THE ERA OF MIS‑11 (370–440 KA BP) ACCORDING TO ISOTOPE COMPOSITION (ΔD, Δ18O, Δ17O) OF ICE FROM THE VOSTOK STATION CORES
title_full_unstemmed CLIMATIC VARIABILITY IN THE ERA OF MIS‑11 (370–440 KA BP) ACCORDING TO ISOTOPE COMPOSITION (ΔD, Δ18O, Δ17O) OF ICE FROM THE VOSTOK STATION CORES
title_sort climatic variability in the era of mis‑11 (370–440 ka bp) according to isotope composition (δd, δ18o, δ17o) of ice from the vostok station cores
publisher IGRAS
publishDate 2018
url https://ice-snow.igras.ru/jour/article/view/449
https://doi.org/10.15356/2076-6734-2018-2-149-158
long_lat ENVELOPE(106.837,106.837,-78.464,-78.464)
geographic East Antarctica
Vostok Station
geographic_facet East Antarctica
Vostok Station
genre Antarc*
Antarctica
Arctic
East Antarctica
ice core
North Atlantic
Антарктида
genre_facet Antarc*
Antarctica
Arctic
East Antarctica
ice core
North Atlantic
Антарктида
op_source Ice and Snow; Том 58, № 2 (2018); 149-158
Лёд и Снег; Том 58, № 2 (2018); 149-158
2412-3765
2076-6734
10.15356/2076-6734-2018-2
op_relation https://ice-snow.igras.ru/jour/article/view/449/260
EPICA Community Members. Eight glacial cycles from an Antarctic ice core // Nature. 2004. V. 429. P. 623–628.
Lang N., Wolff E.W. Interglacial and glacial variability from the last 800 ka in marine, ice and terrestrial archives // Climate of the Past. 2011. V. 7. 361 p.
Melles M., Brigham-Grette J., Minyuk P.S., Nowaczyk N.R., Wennrich V., DeConto R.M., Anderson P.M., Andreev A.A., Coletti A., Cook T.L., Haltia-Hovi E., Kukkonen M., Lozhkin A.V., Rosén P., Tarasov P., Vogel H., Wagner B. 2.8 million years of Arctic climate change from Lake El’gygytgyn, NE Russia // Science. 2012. V. 337. P. 315–320.
Prokopenko A.A., Bezrukova E.V., KhursevichG.K., Solotchina E.P., Kuzmin M.I., Tarasov P.E. Climate in continental interior Asia during the longest interglacial of the past 500 000 years: the new MIS 11 records from Lake Baikal, SE Siberia // Climate of the Past. 2010. V. 6. P. 31–48.
Petit J.R., Jouzel J., Raynaud D., Barkov N.I., Barnola J.-M., Basile I., Bender M., Chappellaz J., Davis M., Delaygue G., Delmotte M., Kotlyakov V.M., Legrand M., Lipenkov V.Y., Lorius C., Pépin L., Ritz C., Saltzman E., Stievenard M. Climate and atmospheric history of the past 420,000 years from the Vostok ice core, Antarctica // Nature. 1999. V. 399. P. 429–436.
Cuffey K.M., Vimeux F. Covariation of carbon dioxide and temperature from the Vostok ice core after deuteriumexcess correction // Nature. 2001. V. 412. P. 523–527.
Vimeux F., Cuffey K.M., Jouzel J. New insights into Southern Hemisphere temperature changes from Vostok ice cores using deuterium excess correction // Earth and Planetary Science Letters. 2002. V. 203. P. 829–843.
Landais A., Barkan E., Vimeux F., Masson-Delmotte V., Luz B. Combined Analysis of Water Stable Isotopes (H2 16O, H2 17O, H2 18O, HD16O) in Ice Cores // Low Temperature Science. 2009. V. 68. P. 315–327.
Landais A., Barkan E., Luz B. Record of δ18O and 17O-excess in ice from Vostok Antarctica during the 150,000 years // Geophys. Research Letters. 2008. V. 35. P. L02709: 1–5. doi:10.1029/2007GL032096.
Екайкин А.А. Стабильные изотопы воды в гляциологии и палеогеографии / Ред. В.Я. Липенков. Санкт-Петербург: ААНИИ, 2016. 64 c.
Raynaud D., Barnola J.-M., Souchez R., Lorrain R., Petit J.-R., Duval P., Lipenkov V.Y. Palaeoclimatology: The record for marine isotopic stage 11 // Nature. 2005. V. 436. P. 39–40.
Bazin L., Landais A., Lemieux-Dudon B., Toyé Mahamadou Kele H., Veres D., Parrenin F., Martinerie P., Ritz C., Capron E., Lipenkov V., Loutre M.-F., Raynaud D., Vinther B., Svensson A., Rasmussen S.O., Severi M., Blunier T., Leuenberger M., Fischer H., Masson-Delmotte V., Chappellaz J., Wolff E. An optimized multi-proxy, multi-site Antarctic ice and gas orbital chronology (AICC2012): 120-800 ka // Climate of the Past. 2013. V. 9. P. 1715–1731.
Salamatin A.N., Tsyganova E.A., Popov S.V., Lipenkov V.Ya. Ice flow line modeling in ice core data interpretation: Vostok Station (East Antarctica) // Physics of ice core records. 2009. V. 2. P. 167–194.
Jouzel J., Masson-Delmotte V., Cattani O., Dreyfus G., Falourd S., Hoffmann G., Minster B., Nouet J., Barnola J.M., Chappellaz J., Fischer H., Gallet J.C., Johnsen S., Leuenberger M., Loulergue L., Luethi D., Oerter H., Parrenin F., Raisbeck G., Raynaud D., Schilt A., Schwander J., Selmo E., Souchez R., Spahni R., Stauffer B., Steffensen J.P., Stenni B., Stocker T.F., Tison J.L., Werner M., Wolff E.W. Orbital and millennial Antarctic climate variability over the past 800,000 years // Science. 2007. V. 317. P. 793–796.
Watanabe O., Jouzel J., Johnsen S., Parrenin F., Shojik H., Yoshida N. Homogeneous climate variability across East Antarctica over the past three glacial cycles // Nature. 2003. V. 422. P. 509–512.
Paillard D., Labeyrie L., Yiou P. Macintosh Program Performs Time-Series Analysis // EOS. Transaction of the American Geophys. Union. 1996. V. 77. P. 379.
Jouzel J., Delaygue G., Landais A., Masson-Delmotte V., Risi C., Vimeux F. Water isotopes as tools to document oceanic sources of precipitation // Water Resources Research. 2013. V. 49. P. 7469–7486.
Candy I., Schreve D.C., Sherriff J., Tye G.J. Marine Isotope Stage 11: Palaeoclimates, palaeoenvironments and its role as an analogue for the current interglacial // Earth-Science Reviews. 2014. V. 128. P. 18–51.
Landais A., Ekaykin A., Barkan E., Winkler R., Luz B. Seasonal variations of 17O-excess and d-excess in snow precipitation at Vostok station, East Antarctica // Journ. of Glaciology. 2012. V. 58. P. 725–733.
Winkler R., Landais A., Risi C., Baroni M., Ekaykin A., Jouzel J., Petit J.R., Prie F., Minster B., Falourd S. Interannual variation of water isotopologues at Vostok indicates a contribution from stratospheric water vapor // Proc. of the National Academy of Sciences. 2013. V. 110. P. 17674–17679.
Salamatin A.N., Ekaykin A.A., Lipenkov V.Y. Modelling isotopic composition in precipitation in Central Antarctica // Data of Glaciological Studies. 2004. V. 97. P. 24–34.
Jouzel J., Merlivat L. Deuterium and oxygen 18 in precipitation: Modeling of the isotopic effects during snow formation // Journ. of Geophys. Research: Atmospheres. 1984. V. 89. P. 11749–11757.
Электронный ресурс: https://doi.pangaea.de/10.1594/PANGAEA.52373?format=html#download
Электронный ресурс: https://doi.pangaea.de/10.1594/PANGAEA.771706
https://ice-snow.igras.ru/jour/article/view/449
doi:10.15356/2076-6734-2018-2-149-158
op_rights Authors who publish with this journal agree to the following terms:Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
Авторы, публикующие статьи в данном журнале, соглашаются на следующее:Авторы сохраняют за собой авторские права и предоставляют журналу право первой публикации работы, которая по истечении 6 месяцев после публикации автоматически лицензируется на условиях Creative Commons Attribution License , что позволяет другим распространять данную работу с обязательным сохранением ссылок на авторов оригинальной работы и оригинальную публикацию в этом журнале.Редакция журнала будет размещать принятую для публикации статью на сайте журнала до выхода её в свет (после утверждения к печати редколлегией журнала). Авторы также имеют право размещать их работу в сети Интернет (например в институтском хранилище или персональном сайте) до и во время процесса рассмотрения ее данным журналом, так как это может привести к продуктивному обсуждению и большему количеству ссылок на данную работу (См. The Effect of Open Access).
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op_doi https://doi.org/10.15356/2076-6734-2018-2-149-158
https://doi.org/10.15356/2076-6734-2018-2
https://doi.org/10.1029/2007GL032096
container_title Ice and Snow
container_volume 58
container_issue 2
container_start_page 149
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spelling ftjias:oai:oai.ice.elpub.ru:article/449 2023-05-15T13:44:15+02:00 CLIMATIC VARIABILITY IN THE ERA OF MIS‑11 (370–440 KA BP) ACCORDING TO ISOTOPE COMPOSITION (ΔD, Δ18O, Δ17O) OF ICE FROM THE VOSTOK STATION CORES КЛИМАТИЧЕСКАЯ ИЗМЕНЧИВОСТЬ В ЭПОХУ МИС‑11 (370–440 ТЫС. ЛЕТ НАЗАД) ПО ДАННЫМ ИЗОТОПНОГО СОСТАВА (δD, δ18O, δ17O) ЛЕДЯНОГО КЕРНА СТАНЦИИ ВОСТОК A. Veres N. A. Ekaykin A. D. Vladimirova O. A. Kozachek V. V. Lipenkov Ya. A. Skakun A. А. Верес Н. А. Екайкин А. Д. Владимирова О. А. Козачек В. В. Липенков Я. А. Скакун А. 2018-05-20 application/pdf https://ice-snow.igras.ru/jour/article/view/449 https://doi.org/10.15356/2076-6734-2018-2-149-158 rus rus IGRAS https://ice-snow.igras.ru/jour/article/view/449/260 EPICA Community Members. Eight glacial cycles from an Antarctic ice core // Nature. 2004. V. 429. P. 623–628. Lang N., Wolff E.W. Interglacial and glacial variability from the last 800 ka in marine, ice and terrestrial archives // Climate of the Past. 2011. V. 7. 361 p. Melles M., Brigham-Grette J., Minyuk P.S., Nowaczyk N.R., Wennrich V., DeConto R.M., Anderson P.M., Andreev A.A., Coletti A., Cook T.L., Haltia-Hovi E., Kukkonen M., Lozhkin A.V., Rosén P., Tarasov P., Vogel H., Wagner B. 2.8 million years of Arctic climate change from Lake El’gygytgyn, NE Russia // Science. 2012. V. 337. P. 315–320. Prokopenko A.A., Bezrukova E.V., KhursevichG.K., Solotchina E.P., Kuzmin M.I., Tarasov P.E. Climate in continental interior Asia during the longest interglacial of the past 500 000 years: the new MIS 11 records from Lake Baikal, SE Siberia // Climate of the Past. 2010. V. 6. P. 31–48. Petit J.R., Jouzel J., Raynaud D., Barkov N.I., Barnola J.-M., Basile I., Bender M., Chappellaz J., Davis M., Delaygue G., Delmotte M., Kotlyakov V.M., Legrand M., Lipenkov V.Y., Lorius C., Pépin L., Ritz C., Saltzman E., Stievenard M. Climate and atmospheric history of the past 420,000 years from the Vostok ice core, Antarctica // Nature. 1999. V. 399. P. 429–436. Cuffey K.M., Vimeux F. Covariation of carbon dioxide and temperature from the Vostok ice core after deuteriumexcess correction // Nature. 2001. V. 412. P. 523–527. Vimeux F., Cuffey K.M., Jouzel J. New insights into Southern Hemisphere temperature changes from Vostok ice cores using deuterium excess correction // Earth and Planetary Science Letters. 2002. V. 203. P. 829–843. Landais A., Barkan E., Vimeux F., Masson-Delmotte V., Luz B. Combined Analysis of Water Stable Isotopes (H2 16O, H2 17O, H2 18O, HD16O) in Ice Cores // Low Temperature Science. 2009. V. 68. P. 315–327. Landais A., Barkan E., Luz B. Record of δ18O and 17O-excess in ice from Vostok Antarctica during the 150,000 years // Geophys. Research Letters. 2008. V. 35. P. L02709: 1–5. doi:10.1029/2007GL032096. Екайкин А.А. Стабильные изотопы воды в гляциологии и палеогеографии / Ред. В.Я. Липенков. Санкт-Петербург: ААНИИ, 2016. 64 c. Raynaud D., Barnola J.-M., Souchez R., Lorrain R., Petit J.-R., Duval P., Lipenkov V.Y. Palaeoclimatology: The record for marine isotopic stage 11 // Nature. 2005. V. 436. P. 39–40. Bazin L., Landais A., Lemieux-Dudon B., Toyé Mahamadou Kele H., Veres D., Parrenin F., Martinerie P., Ritz C., Capron E., Lipenkov V., Loutre M.-F., Raynaud D., Vinther B., Svensson A., Rasmussen S.O., Severi M., Blunier T., Leuenberger M., Fischer H., Masson-Delmotte V., Chappellaz J., Wolff E. An optimized multi-proxy, multi-site Antarctic ice and gas orbital chronology (AICC2012): 120-800 ka // Climate of the Past. 2013. V. 9. P. 1715–1731. Salamatin A.N., Tsyganova E.A., Popov S.V., Lipenkov V.Ya. Ice flow line modeling in ice core data interpretation: Vostok Station (East Antarctica) // Physics of ice core records. 2009. V. 2. P. 167–194. Jouzel J., Masson-Delmotte V., Cattani O., Dreyfus G., Falourd S., Hoffmann G., Minster B., Nouet J., Barnola J.M., Chappellaz J., Fischer H., Gallet J.C., Johnsen S., Leuenberger M., Loulergue L., Luethi D., Oerter H., Parrenin F., Raisbeck G., Raynaud D., Schilt A., Schwander J., Selmo E., Souchez R., Spahni R., Stauffer B., Steffensen J.P., Stenni B., Stocker T.F., Tison J.L., Werner M., Wolff E.W. Orbital and millennial Antarctic climate variability over the past 800,000 years // Science. 2007. V. 317. P. 793–796. Watanabe O., Jouzel J., Johnsen S., Parrenin F., Shojik H., Yoshida N. Homogeneous climate variability across East Antarctica over the past three glacial cycles // Nature. 2003. V. 422. P. 509–512. Paillard D., Labeyrie L., Yiou P. Macintosh Program Performs Time-Series Analysis // EOS. Transaction of the American Geophys. Union. 1996. V. 77. P. 379. Jouzel J., Delaygue G., Landais A., Masson-Delmotte V., Risi C., Vimeux F. Water isotopes as tools to document oceanic sources of precipitation // Water Resources Research. 2013. V. 49. P. 7469–7486. Candy I., Schreve D.C., Sherriff J., Tye G.J. Marine Isotope Stage 11: Palaeoclimates, palaeoenvironments and its role as an analogue for the current interglacial // Earth-Science Reviews. 2014. V. 128. P. 18–51. Landais A., Ekaykin A., Barkan E., Winkler R., Luz B. Seasonal variations of 17O-excess and d-excess in snow precipitation at Vostok station, East Antarctica // Journ. of Glaciology. 2012. V. 58. P. 725–733. Winkler R., Landais A., Risi C., Baroni M., Ekaykin A., Jouzel J., Petit J.R., Prie F., Minster B., Falourd S. Interannual variation of water isotopologues at Vostok indicates a contribution from stratospheric water vapor // Proc. of the National Academy of Sciences. 2013. V. 110. P. 17674–17679. Salamatin A.N., Ekaykin A.A., Lipenkov V.Y. Modelling isotopic composition in precipitation in Central Antarctica // Data of Glaciological Studies. 2004. V. 97. P. 24–34. Jouzel J., Merlivat L. Deuterium and oxygen 18 in precipitation: Modeling of the isotopic effects during snow formation // Journ. of Geophys. Research: Atmospheres. 1984. V. 89. P. 11749–11757. Электронный ресурс: https://doi.pangaea.de/10.1594/PANGAEA.52373?format=html#download Электронный ресурс: https://doi.pangaea.de/10.1594/PANGAEA.771706 https://ice-snow.igras.ru/jour/article/view/449 doi:10.15356/2076-6734-2018-2-149-158 Authors who publish with this journal agree to the following terms:Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access). Авторы, публикующие статьи в данном журнале, соглашаются на следующее:Авторы сохраняют за собой авторские права и предоставляют журналу право первой публикации работы, которая по истечении 6 месяцев после публикации автоматически лицензируется на условиях Creative Commons Attribution License , что позволяет другим распространять данную работу с обязательным сохранением ссылок на авторов оригинальной работы и оригинальную публикацию в этом журнале.Редакция журнала будет размещать принятую для публикации статью на сайте журнала до выхода её в свет (после утверждения к печати редколлегией журнала). Авторы также имеют право размещать их работу в сети Интернет (например в институтском хранилище или персональном сайте) до и во время процесса рассмотрения ее данным журналом, так как это может привести к продуктивному обсуждению и большему количеству ссылок на данную работу (См. The Effect of Open Access). CC-BY Ice and Snow; Том 58, № 2 (2018); 149-158 Лёд и Снег; Том 58, № 2 (2018); 149-158 2412-3765 2076-6734 10.15356/2076-6734-2018-2 Antarctica ice cores Marine Isotope Stage 11 paleoclimate stable water isotopes Антарктида ледяной керн морская изотопная стадия 11 палеоклимат стабильные изотопы воды info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2018 ftjias https://doi.org/10.15356/2076-6734-2018-2-149-158 https://doi.org/10.15356/2076-6734-2018-2 https://doi.org/10.1029/2007GL032096 2022-12-20T13:29:52Z The results of detailed isotopic studies of ice core samples from the Vostok station (East Antarctica) related to the MIS-11 era (the 11th sea isotope stage, i.e. 370–440 thousand years ago) are presented. Reconstruction of paleoclimatic conditions in this period of time was performed using the method of interpretation of the results of isotopic studies of ice, developed by the authors of the article, which is based on the joint analysis of three independent parameters: δD, d-excess, 17O-excess. The isotopic composition (δD) and the deuterium excess depend on the following three meteorological parameters – the condensation temperature near the Vostok station, relative humidity, and the sea surface temperature at the source of moisture, whereas 17O-excess depends only on the first two parameters. Accordingly, the proposed method of interpretation allows reconstructing the paleoclimatic conditions (the condensation temperature and surface air temperature at the Vostok station; sea surface temperature and relative humidity above the ocean) in two different regions in past epochs. For the first time, data on minor fluctuations in the relative humidity of the air in themoisture source throughout the MIS-11 era were obtained. The data resulted from the interpretation demonstrated that the relative humidity fluctuated within the measurement error of ±5%. Reconstructed climatic conditions in the era of MIS-11 were compared with published data for stations Vostok and Concordia, aswell as with the marine core data from 94-607 DSDP and ODP 177-1090. The results obtained on the basis of isotopic analysis of ice cores from stations Vostok and Concordia indicated that in the optimum MIS-11the air temperature was4 °C higher, and in the Termination V –8 °C lower than the present-day values. Thesimilarity of data between the marine columns DSDP 94-607 (North Atlantic), ODP 177-1090 (South Ocean)and our results points to the global nature of changes in the sea surface temperature during the MIS-11 era. The coordination of the ... Article in Journal/Newspaper Antarc* Antarctica Arctic East Antarctica ice core North Atlantic Антарктида Ice and Snow (E-Journal) East Antarctica Vostok Station ENVELOPE(106.837,106.837,-78.464,-78.464) Ice and Snow 58 2 149 158

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