Modern solar maximum forced late twentieth century Greenland cooling
The abrupt Northern Hemispheric warming at the end of the twentieth century has been attributed to an enhanced greenhouse effect. Yet Greenland and surrounding subpolar North Atlantic remained anomalously cold in 1970s to early 1990s. Here we reconstructed robust Greenland temperature records (North...
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ftunivbern:oai:boris.unibe.ch:71553 2023-08-20T04:06:45+02:00 Modern solar maximum forced late twentieth century Greenland cooling Kobashi, T. Box, J. E. Vinther, B. M. Goto-Azuma, K. Blunier, T. White, J. W. C. Nakaegawa, T. Andresen, C. S. 2015 application/pdf https://boris.unibe.ch/71553/1/kobashi15grl.pdf https://boris.unibe.ch/71553/ eng eng American Geophysical Union https://boris.unibe.ch/71553/ info:eu-repo/semantics/openAccess Kobashi, T.; Box, J. E.; Vinther, B. M.; Goto-Azuma, K.; Blunier, T.; White, J. W. C.; Nakaegawa, T.; Andresen, C. S. (2015). Modern solar maximum forced late twentieth century Greenland cooling. Geophysical Research Letters, 42(14), pp. 5992-5999. American Geophysical Union 10.1002/2015GL064764 <http://dx.doi.org/10.1002/2015GL064764> 530 Physics info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion PeerReviewed 2015 ftunivbern https://doi.org/10.1002/2015GL064764 2023-07-31T21:19:43Z The abrupt Northern Hemispheric warming at the end of the twentieth century has been attributed to an enhanced greenhouse effect. Yet Greenland and surrounding subpolar North Atlantic remained anomalously cold in 1970s to early 1990s. Here we reconstructed robust Greenland temperature records (North Greenland Ice Core Project and Greenland Ice Sheet Project 2) over the past 2100 years using argon and nitrogen isotopes in air trapped within ice cores and show that this cold anomaly was part of a recursive pattern of antiphase Greenland temperature responses to solar variability with a possible multidecadal lag. We hypothesize that high solar activity during the modern solar maximum (approximately 1950s–1980s) resulted in a cooling over Greenland and surrounding subpolar North Atlantic through the slowdown of Atlantic Meridional Overturning Circulation with atmospheric feedback processes. Article in Journal/Newspaper Greenland Greenland ice core Greenland Ice core Project Greenland Ice Sheet Project ice core Ice Sheet North Atlantic North Greenland North Greenland Ice Core Project BORIS (Bern Open Repository and Information System, University of Bern) Greenland Geophysical Research Letters 42 14 5992 5999 |
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Open Polar |
collection |
BORIS (Bern Open Repository and Information System, University of Bern) |
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ftunivbern |
language |
English |
topic |
530 Physics |
spellingShingle |
530 Physics Kobashi, T. Box, J. E. Vinther, B. M. Goto-Azuma, K. Blunier, T. White, J. W. C. Nakaegawa, T. Andresen, C. S. Modern solar maximum forced late twentieth century Greenland cooling |
topic_facet |
530 Physics |
description |
The abrupt Northern Hemispheric warming at the end of the twentieth century has been attributed to an enhanced greenhouse effect. Yet Greenland and surrounding subpolar North Atlantic remained anomalously cold in 1970s to early 1990s. Here we reconstructed robust Greenland temperature records (North Greenland Ice Core Project and Greenland Ice Sheet Project 2) over the past 2100 years using argon and nitrogen isotopes in air trapped within ice cores and show that this cold anomaly was part of a recursive pattern of antiphase Greenland temperature responses to solar variability with a possible multidecadal lag. We hypothesize that high solar activity during the modern solar maximum (approximately 1950s–1980s) resulted in a cooling over Greenland and surrounding subpolar North Atlantic through the slowdown of Atlantic Meridional Overturning Circulation with atmospheric feedback processes. |
format |
Article in Journal/Newspaper |
author |
Kobashi, T. Box, J. E. Vinther, B. M. Goto-Azuma, K. Blunier, T. White, J. W. C. Nakaegawa, T. Andresen, C. S. |
author_facet |
Kobashi, T. Box, J. E. Vinther, B. M. Goto-Azuma, K. Blunier, T. White, J. W. C. Nakaegawa, T. Andresen, C. S. |
author_sort |
Kobashi, T. |
title |
Modern solar maximum forced late twentieth century Greenland cooling |
title_short |
Modern solar maximum forced late twentieth century Greenland cooling |
title_full |
Modern solar maximum forced late twentieth century Greenland cooling |
title_fullStr |
Modern solar maximum forced late twentieth century Greenland cooling |
title_full_unstemmed |
Modern solar maximum forced late twentieth century Greenland cooling |
title_sort |
modern solar maximum forced late twentieth century greenland cooling |
publisher |
American Geophysical Union |
publishDate |
2015 |
url |
https://boris.unibe.ch/71553/1/kobashi15grl.pdf https://boris.unibe.ch/71553/ |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Greenland ice core Greenland Ice core Project Greenland Ice Sheet Project ice core Ice Sheet North Atlantic North Greenland North Greenland Ice Core Project |
genre_facet |
Greenland Greenland ice core Greenland Ice core Project Greenland Ice Sheet Project ice core Ice Sheet North Atlantic North Greenland North Greenland Ice Core Project |
op_source |
Kobashi, T.; Box, J. E.; Vinther, B. M.; Goto-Azuma, K.; Blunier, T.; White, J. W. C.; Nakaegawa, T.; Andresen, C. S. (2015). Modern solar maximum forced late twentieth century Greenland cooling. Geophysical Research Letters, 42(14), pp. 5992-5999. American Geophysical Union 10.1002/2015GL064764 <http://dx.doi.org/10.1002/2015GL064764> |
op_relation |
https://boris.unibe.ch/71553/ |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/2015GL064764 |
container_title |
Geophysical Research Letters |
container_volume |
42 |
container_issue |
14 |
container_start_page |
5992 |
op_container_end_page |
5999 |
_version_ |
1774718061772800000 |