Late-Quaternary summer temperature changes in the northern-European tree-line region
We present two new quantitative July mean temperature (T jul ) reconstructions from the Arctic tree-line region in the Kola Peninsula in north-western Russia. The reconstructions are based on fossil pollen records and cover the Younger Dryas stadial and the Holocene. The inferred temperatures are le...
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Cambridge University Press (CUP)
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crcambridgeupr:10.1016/j.yqres.2008.02.002 2024-09-15T18:06:07+00:00 Late-Quaternary summer temperature changes in the northern-European tree-line region Seppä, Heikki MacDonald, Glen M. Birks, H. John B. Gervais, Bruce R. Snyder, Jeffrey A. 2008 http://dx.doi.org/10.1016/j.yqres.2008.02.002 http://api.elsevier.com/content/article/PII:S0033589408000240?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589408000240?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400014605 en eng Cambridge University Press (CUP) http://www.elsevier.com/tdm/userlicense/1.0/ Quaternary Research volume 69, issue 03, page 404-412 ISSN 0033-5894 1096-0287 journal-article 2008 crcambridgeupr https://doi.org/10.1016/j.yqres.2008.02.002 2024-08-14T04:03:50Z We present two new quantitative July mean temperature (T jul ) reconstructions from the Arctic tree-line region in the Kola Peninsula in north-western Russia. The reconstructions are based on fossil pollen records and cover the Younger Dryas stadial and the Holocene. The inferred temperatures are less reliable during the Younger Dryas because of the poorer fit between the fossil pollen samples and the modern samples in the calibration set than during the Holocene. The results suggest that the Younger Dryas T jul in the region was 8.0–10.0°C, being 2.0–3.0°C lower than at present. The Holocene summer temperature maximum dates to 7500–6500 cal yr BP, with T jul about 1.5°C higher than at present. These new records contribute to our understanding of summer temperature changes along the northern-European tree-line region. The Holocene trends are consistent in most of the independent records from the Fennoscandian–Kola tree-line region, with the beginning of the Holocene thermal maximum no sooner than at about 8000 cal yr BP. In the few existing temperature-related records farther east in the Russian Arctic tree line, the period of highest summer temperature begins already at about 10,000 cal yr BP. This difference may reflect the strong influence of the Atlantic coastal current on the atmospheric circulation pattern and the thermal behaviour of the tree-line region on the Atlantic seaboard, and the more direct influence of the summer solar insolation on summer temperature in the region east of the Kola Peninsula. Article in Journal/Newspaper Fennoscandian kola peninsula North-Western Russia Cambridge University Press Quaternary Research 69 03 404 412 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
We present two new quantitative July mean temperature (T jul ) reconstructions from the Arctic tree-line region in the Kola Peninsula in north-western Russia. The reconstructions are based on fossil pollen records and cover the Younger Dryas stadial and the Holocene. The inferred temperatures are less reliable during the Younger Dryas because of the poorer fit between the fossil pollen samples and the modern samples in the calibration set than during the Holocene. The results suggest that the Younger Dryas T jul in the region was 8.0–10.0°C, being 2.0–3.0°C lower than at present. The Holocene summer temperature maximum dates to 7500–6500 cal yr BP, with T jul about 1.5°C higher than at present. These new records contribute to our understanding of summer temperature changes along the northern-European tree-line region. The Holocene trends are consistent in most of the independent records from the Fennoscandian–Kola tree-line region, with the beginning of the Holocene thermal maximum no sooner than at about 8000 cal yr BP. In the few existing temperature-related records farther east in the Russian Arctic tree line, the period of highest summer temperature begins already at about 10,000 cal yr BP. This difference may reflect the strong influence of the Atlantic coastal current on the atmospheric circulation pattern and the thermal behaviour of the tree-line region on the Atlantic seaboard, and the more direct influence of the summer solar insolation on summer temperature in the region east of the Kola Peninsula. |
format |
Article in Journal/Newspaper |
author |
Seppä, Heikki MacDonald, Glen M. Birks, H. John B. Gervais, Bruce R. Snyder, Jeffrey A. |
spellingShingle |
Seppä, Heikki MacDonald, Glen M. Birks, H. John B. Gervais, Bruce R. Snyder, Jeffrey A. Late-Quaternary summer temperature changes in the northern-European tree-line region |
author_facet |
Seppä, Heikki MacDonald, Glen M. Birks, H. John B. Gervais, Bruce R. Snyder, Jeffrey A. |
author_sort |
Seppä, Heikki |
title |
Late-Quaternary summer temperature changes in the northern-European tree-line region |
title_short |
Late-Quaternary summer temperature changes in the northern-European tree-line region |
title_full |
Late-Quaternary summer temperature changes in the northern-European tree-line region |
title_fullStr |
Late-Quaternary summer temperature changes in the northern-European tree-line region |
title_full_unstemmed |
Late-Quaternary summer temperature changes in the northern-European tree-line region |
title_sort |
late-quaternary summer temperature changes in the northern-european tree-line region |
publisher |
Cambridge University Press (CUP) |
publishDate |
2008 |
url |
http://dx.doi.org/10.1016/j.yqres.2008.02.002 http://api.elsevier.com/content/article/PII:S0033589408000240?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589408000240?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400014605 |
genre |
Fennoscandian kola peninsula North-Western Russia |
genre_facet |
Fennoscandian kola peninsula North-Western Russia |
op_source |
Quaternary Research volume 69, issue 03, page 404-412 ISSN 0033-5894 1096-0287 |
op_rights |
http://www.elsevier.com/tdm/userlicense/1.0/ |
op_doi |
https://doi.org/10.1016/j.yqres.2008.02.002 |
container_title |
Quaternary Research |
container_volume |
69 |
container_issue |
03 |
container_start_page |
404 |
op_container_end_page |
412 |
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1810443620359077888 |