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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American Geophysical Union
2015
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ftdatacite:10.7892/boris.71553 2023-05-15T16:23:16+02:00 Modern solar maximum forced late twentieth century Greenland cooling Nakaegawa, T. Box, J. E. Andresen, C. S. Kobashi, T. Goto-Azuma, K. White, J. W. C. Blunier, T. Vinther, B. M. 2015 application/pdf https://dx.doi.org/10.7892/boris.71553 http://boris.unibe.ch/71553/ en eng American Geophysical Union info:eu-repo/semantics/openAccess 530 Physics Text article-journal ScholarlyArticle 2015 ftdatacite https://doi.org/10.7892/boris.71553 2021-11-05T12:55:41Z 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. Text 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 DataCite Metadata Store (German National Library of Science and Technology) Greenland |
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DataCite Metadata Store (German National Library of Science and Technology) |
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ftdatacite |
language |
English |
topic |
530 Physics |
spellingShingle |
530 Physics Nakaegawa, T. Box, J. E. Andresen, C. S. Kobashi, T. Goto-Azuma, K. White, J. W. C. Blunier, T. Vinther, B. M. 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 |
Text |
author |
Nakaegawa, T. Box, J. E. Andresen, C. S. Kobashi, T. Goto-Azuma, K. White, J. W. C. Blunier, T. Vinther, B. M. |
author_facet |
Nakaegawa, T. Box, J. E. Andresen, C. S. Kobashi, T. Goto-Azuma, K. White, J. W. C. Blunier, T. Vinther, B. M. |
author_sort |
Nakaegawa, 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://dx.doi.org/10.7892/boris.71553 http://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_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.7892/boris.71553 |
_version_ |
1766011480827756544 |