Isotopic evidence for Holocene January air temperature variability on the East Chukotka Peninsula
Abstract Ice‐wedge ice can provide a valuable record of past winter climate variability at high latitudes yet to date this proxy has been applied only sparsely across the Chukotka region of Siberia. Here we present data from eight ice‐wedges at four sites across a 600‐km transect in Eastern Chukotka...
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crwiley:10.1002/ppp.1991 2024-06-02T08:05:21+00:00 Isotopic evidence for Holocene January air temperature variability on the East Chukotka Peninsula Vasil'chuk, Yurij K. Budantseva, Nadine A. Farquharson, Louise M. Maslakov, Alexey A. Vasil'chuk, Alla C. Chizhova, Julia N. Russian Science Foundation 2018 http://dx.doi.org/10.1002/ppp.1991 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.1991 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.1991 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Permafrost and Periglacial Processes volume 29, issue 4, page 283-297 ISSN 1045-6740 1099-1530 journal-article 2018 crwiley https://doi.org/10.1002/ppp.1991 2024-05-03T11:41:58Z Abstract Ice‐wedge ice can provide a valuable record of past winter climate variability at high latitudes yet to date this proxy has been applied only sparsely across the Chukotka region of Siberia. Here we present data from eight ice‐wedges at four sites across a 600‐km transect in Eastern Chukotka which we use to reconstruct regional Holocene winter paleotemperature. The Holocene age of ice‐wedges was established by radiocarbon dating of peat surrounding individual ice‐wedges. Our suite of radiocarbon ages suggests that the studied ice‐wedges formed between 12.9–11.8 and 3–2.5 cal ka BP. δ 18 O and δ 2 H values from ice‐wedge ice indicate that in coastal areas of Eastern Chukotka mean January air temperatures in the first half of the Holocene were on average 2–3°С lower than modern values, a finding that corresponds well with winter climate reconstructions for the other areas of Beringia. The variability of reconstructed mean January air temperatures in the study area did not exceed 2–4°C during the early to mid‐Holocene. Article in Journal/Newspaper Chukotka Chukotka Peninsula Permafrost and Periglacial Processes Beringia Siberia Wiley Online Library Permafrost and Periglacial Processes 29 4 283 297 |
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English |
description |
Abstract Ice‐wedge ice can provide a valuable record of past winter climate variability at high latitudes yet to date this proxy has been applied only sparsely across the Chukotka region of Siberia. Here we present data from eight ice‐wedges at four sites across a 600‐km transect in Eastern Chukotka which we use to reconstruct regional Holocene winter paleotemperature. The Holocene age of ice‐wedges was established by radiocarbon dating of peat surrounding individual ice‐wedges. Our suite of radiocarbon ages suggests that the studied ice‐wedges formed between 12.9–11.8 and 3–2.5 cal ka BP. δ 18 O and δ 2 H values from ice‐wedge ice indicate that in coastal areas of Eastern Chukotka mean January air temperatures in the first half of the Holocene were on average 2–3°С lower than modern values, a finding that corresponds well with winter climate reconstructions for the other areas of Beringia. The variability of reconstructed mean January air temperatures in the study area did not exceed 2–4°C during the early to mid‐Holocene. |
author2 |
Russian Science Foundation |
format |
Article in Journal/Newspaper |
author |
Vasil'chuk, Yurij K. Budantseva, Nadine A. Farquharson, Louise M. Maslakov, Alexey A. Vasil'chuk, Alla C. Chizhova, Julia N. |
spellingShingle |
Vasil'chuk, Yurij K. Budantseva, Nadine A. Farquharson, Louise M. Maslakov, Alexey A. Vasil'chuk, Alla C. Chizhova, Julia N. Isotopic evidence for Holocene January air temperature variability on the East Chukotka Peninsula |
author_facet |
Vasil'chuk, Yurij K. Budantseva, Nadine A. Farquharson, Louise M. Maslakov, Alexey A. Vasil'chuk, Alla C. Chizhova, Julia N. |
author_sort |
Vasil'chuk, Yurij K. |
title |
Isotopic evidence for Holocene January air temperature variability on the East Chukotka Peninsula |
title_short |
Isotopic evidence for Holocene January air temperature variability on the East Chukotka Peninsula |
title_full |
Isotopic evidence for Holocene January air temperature variability on the East Chukotka Peninsula |
title_fullStr |
Isotopic evidence for Holocene January air temperature variability on the East Chukotka Peninsula |
title_full_unstemmed |
Isotopic evidence for Holocene January air temperature variability on the East Chukotka Peninsula |
title_sort |
isotopic evidence for holocene january air temperature variability on the east chukotka peninsula |
publisher |
Wiley |
publishDate |
2018 |
url |
http://dx.doi.org/10.1002/ppp.1991 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.1991 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.1991 |
genre |
Chukotka Chukotka Peninsula Permafrost and Periglacial Processes Beringia Siberia |
genre_facet |
Chukotka Chukotka Peninsula Permafrost and Periglacial Processes Beringia Siberia |
op_source |
Permafrost and Periglacial Processes volume 29, issue 4, page 283-297 ISSN 1045-6740 1099-1530 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ppp.1991 |
container_title |
Permafrost and Periglacial Processes |
container_volume |
29 |
container_issue |
4 |
container_start_page |
283 |
op_container_end_page |
297 |
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1800750149824151552 |