2003: NAO signal recorded in the stable isotopes of Greenland ice cores
[1] The winter d18O signal is extracted from 7 Greenland ice cores covering the past 700 years. To filter out noise and local variations in the 7 isotope records a principal component analysis is carried out on the ice core data. A comparison between the time series of the first principal component...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.475.7509 2023-05-15T16:23:44+02:00 2003: NAO signal recorded in the stable isotopes of Greenland ice cores B. M. Vinther S. J. Johnsen K. K. Andersen H. B. Clausen A. W. Hansen The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.475.7509 http://rcg.gvc.gu.se/courses/HolClim_2009/Vinther_etal_2003.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.475.7509 http://rcg.gvc.gu.se/courses/HolClim_2009/Vinther_etal_2003.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://rcg.gvc.gu.se/courses/HolClim_2009/Vinther_etal_2003.pdf text ftciteseerx 2016-01-08T07:34:30Z [1] The winter d18O signal is extracted from 7 Greenland ice cores covering the past 700 years. To filter out noise and local variations in the 7 isotope records a principal component analysis is carried out on the ice core data. A comparison between the time series of the first principal component (PC1) with 67 years of winter (December to March) temperature measurements from 3 southern Greenland synoptic stations shows highly significant correlations. Southern Greenland winter temperatures are known to be greatly influenced by the North Atlantic Oscillation (NAO). A good proxy for southern Greenland temperatures is therefore expected to reveal at least parts of the NAO signal. It is shown that the PC1 time series indeed is significantly correlated to the NAO during the winter months. The inclusion of ice core winter season d18O time series in future multiproxy NAO reconstructions is therefore Text Greenland Greenland ice cores ice core North Atlantic North Atlantic oscillation Unknown Greenland |
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Open Polar |
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Unknown |
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ftciteseerx |
language |
English |
description |
[1] The winter d18O signal is extracted from 7 Greenland ice cores covering the past 700 years. To filter out noise and local variations in the 7 isotope records a principal component analysis is carried out on the ice core data. A comparison between the time series of the first principal component (PC1) with 67 years of winter (December to March) temperature measurements from 3 southern Greenland synoptic stations shows highly significant correlations. Southern Greenland winter temperatures are known to be greatly influenced by the North Atlantic Oscillation (NAO). A good proxy for southern Greenland temperatures is therefore expected to reveal at least parts of the NAO signal. It is shown that the PC1 time series indeed is significantly correlated to the NAO during the winter months. The inclusion of ice core winter season d18O time series in future multiproxy NAO reconstructions is therefore |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
B. M. Vinther S. J. Johnsen K. K. Andersen H. B. Clausen A. W. Hansen |
spellingShingle |
B. M. Vinther S. J. Johnsen K. K. Andersen H. B. Clausen A. W. Hansen 2003: NAO signal recorded in the stable isotopes of Greenland ice cores |
author_facet |
B. M. Vinther S. J. Johnsen K. K. Andersen H. B. Clausen A. W. Hansen |
author_sort |
B. M. Vinther |
title |
2003: NAO signal recorded in the stable isotopes of Greenland ice cores |
title_short |
2003: NAO signal recorded in the stable isotopes of Greenland ice cores |
title_full |
2003: NAO signal recorded in the stable isotopes of Greenland ice cores |
title_fullStr |
2003: NAO signal recorded in the stable isotopes of Greenland ice cores |
title_full_unstemmed |
2003: NAO signal recorded in the stable isotopes of Greenland ice cores |
title_sort |
2003: nao signal recorded in the stable isotopes of greenland ice cores |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.475.7509 http://rcg.gvc.gu.se/courses/HolClim_2009/Vinther_etal_2003.pdf |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Greenland ice cores ice core North Atlantic North Atlantic oscillation |
genre_facet |
Greenland Greenland ice cores ice core North Atlantic North Atlantic oscillation |
op_source |
http://rcg.gvc.gu.se/courses/HolClim_2009/Vinther_etal_2003.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.475.7509 http://rcg.gvc.gu.se/courses/HolClim_2009/Vinther_etal_2003.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766011979227463680 |