Quantitative assessment of precipitation seasonality and summer surface wetness using ombrotrophic sediments from an Arctic Norwegian peatland
Abstract Seasonality of precipitation is an important yet elusive climate parameter in paleoclimatological reconstructions. This parameter can be inferred qualitatively from pollen and other paleoecological methods, but is difficult to assess quantitatively. Here, we have assessed seasonality of pre...
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Cambridge University Press (CUP)
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crcambridgeupr:10.1016/j.yqres.2009.07.007 2024-06-09T07:44:11+00:00 Quantitative assessment of precipitation seasonality and summer surface wetness using ombrotrophic sediments from an Arctic Norwegian peatland Nichols, Jonathan E. Walcott, Marie Bradley, Raymond Pilcher, Jon Huang, Yongsong 2009 http://dx.doi.org/10.1016/j.yqres.2009.07.007 http://api.elsevier.com/content/article/PII:S0033589409000866?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589409000866?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400006712 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 72, issue 3, page 443-451 ISSN 0033-5894 1096-0287 journal-article 2009 crcambridgeupr https://doi.org/10.1016/j.yqres.2009.07.007 2024-05-15T13:04:35Z Abstract Seasonality of precipitation is an important yet elusive climate parameter in paleoclimatological reconstructions. This parameter can be inferred qualitatively from pollen and other paleoecological methods, but is difficult to assess quantitatively. Here, we have assessed seasonality of precipitation and summer surface wetness using compound specific hydrogen and carbon isotope ratios of vascular plant leaf waxes and Sphagnum biomarkers extracted from the sediments of an ombrotrophic peatland, Bøstad Bog, Nordland, Norway. Our reconstructed precipitation seasonality and surface wetness are consistent with regional vegetation reconstructions. During the early Holocene, 11.5–7.5 ka, Fennoscandia experienced a cool, moist climate. The middle Holocene, 7.5–5.5 ka, was warm and dry, transitioning towards cooler and wetter conditions from the mid-Holocene to the present. Changes in seasonality of precipitation during the Holocene show significant coherence with changes in sea surface temperature in the Norwegian Sea, with higher SST corresponding to greater percentage of winter precipitation. Both high SST in the Norwegian Sea and increased moisture delivery to northern Europe during winter are correlated with a strong gradient between the subpolar low and subtropical high over the North Atlantic (positive North Atlantic Oscillation). Article in Journal/Newspaper Arctic Fennoscandia Nordland Nordland North Atlantic North Atlantic oscillation Norwegian Sea Nordland Cambridge University Press Arctic Bøstad ENVELOPE(13.767,13.767,68.250,68.250) Norway Norwegian Sea Quaternary Research 72 3 443 451 |
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Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
Abstract Seasonality of precipitation is an important yet elusive climate parameter in paleoclimatological reconstructions. This parameter can be inferred qualitatively from pollen and other paleoecological methods, but is difficult to assess quantitatively. Here, we have assessed seasonality of precipitation and summer surface wetness using compound specific hydrogen and carbon isotope ratios of vascular plant leaf waxes and Sphagnum biomarkers extracted from the sediments of an ombrotrophic peatland, Bøstad Bog, Nordland, Norway. Our reconstructed precipitation seasonality and surface wetness are consistent with regional vegetation reconstructions. During the early Holocene, 11.5–7.5 ka, Fennoscandia experienced a cool, moist climate. The middle Holocene, 7.5–5.5 ka, was warm and dry, transitioning towards cooler and wetter conditions from the mid-Holocene to the present. Changes in seasonality of precipitation during the Holocene show significant coherence with changes in sea surface temperature in the Norwegian Sea, with higher SST corresponding to greater percentage of winter precipitation. Both high SST in the Norwegian Sea and increased moisture delivery to northern Europe during winter are correlated with a strong gradient between the subpolar low and subtropical high over the North Atlantic (positive North Atlantic Oscillation). |
format |
Article in Journal/Newspaper |
author |
Nichols, Jonathan E. Walcott, Marie Bradley, Raymond Pilcher, Jon Huang, Yongsong |
spellingShingle |
Nichols, Jonathan E. Walcott, Marie Bradley, Raymond Pilcher, Jon Huang, Yongsong Quantitative assessment of precipitation seasonality and summer surface wetness using ombrotrophic sediments from an Arctic Norwegian peatland |
author_facet |
Nichols, Jonathan E. Walcott, Marie Bradley, Raymond Pilcher, Jon Huang, Yongsong |
author_sort |
Nichols, Jonathan E. |
title |
Quantitative assessment of precipitation seasonality and summer surface wetness using ombrotrophic sediments from an Arctic Norwegian peatland |
title_short |
Quantitative assessment of precipitation seasonality and summer surface wetness using ombrotrophic sediments from an Arctic Norwegian peatland |
title_full |
Quantitative assessment of precipitation seasonality and summer surface wetness using ombrotrophic sediments from an Arctic Norwegian peatland |
title_fullStr |
Quantitative assessment of precipitation seasonality and summer surface wetness using ombrotrophic sediments from an Arctic Norwegian peatland |
title_full_unstemmed |
Quantitative assessment of precipitation seasonality and summer surface wetness using ombrotrophic sediments from an Arctic Norwegian peatland |
title_sort |
quantitative assessment of precipitation seasonality and summer surface wetness using ombrotrophic sediments from an arctic norwegian peatland |
publisher |
Cambridge University Press (CUP) |
publishDate |
2009 |
url |
http://dx.doi.org/10.1016/j.yqres.2009.07.007 http://api.elsevier.com/content/article/PII:S0033589409000866?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589409000866?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400006712 |
long_lat |
ENVELOPE(13.767,13.767,68.250,68.250) |
geographic |
Arctic Bøstad Norway Norwegian Sea |
geographic_facet |
Arctic Bøstad Norway Norwegian Sea |
genre |
Arctic Fennoscandia Nordland Nordland North Atlantic North Atlantic oscillation Norwegian Sea Nordland |
genre_facet |
Arctic Fennoscandia Nordland Nordland North Atlantic North Atlantic oscillation Norwegian Sea Nordland |
op_source |
Quaternary Research volume 72, issue 3, page 443-451 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1016/j.yqres.2009.07.007 |
container_title |
Quaternary Research |
container_volume |
72 |
container_issue |
3 |
container_start_page |
443 |
op_container_end_page |
451 |
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1801372978000166912 |