Synchronized Terrestrial Atmospheric Deglacial Records Around the North Atlantic
On the basis of synchronization of three carbon-14 ( 14 C)-dated lacustrine sequences from Sweden with tree ring and ice core records, the absolute age of the Younger Dryas-Preboreal climatic shift was determined to be 11,450 to 11,390 ± 80 years before the present. A 150-year-long cooling in the ea...
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American Association for the Advancement of Science (AAAS)
1996
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Online Access: | http://dx.doi.org/10.1126/science.274.5290.1155 https://www.science.org/doi/pdf/10.1126/science.274.5290.1155 |
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craaas:10.1126/science.274.5290.1155 2024-06-23T07:53:43+00:00 Synchronized Terrestrial Atmospheric Deglacial Records Around the North Atlantic Björck, Svante Kromer, Bernd Johnsen, Sigfus Bennike, Ole Hammarlund, Dan Lemdahl, Geoffrey Possnert, Göran Rasmussen, Tine Lander Wohlfarth, Barbara Hammer, Claus Uffe Spurk, Marco 1996 http://dx.doi.org/10.1126/science.274.5290.1155 https://www.science.org/doi/pdf/10.1126/science.274.5290.1155 en eng American Association for the Advancement of Science (AAAS) Science volume 274, issue 5290, page 1155-1160 ISSN 0036-8075 1095-9203 journal-article 1996 craaas https://doi.org/10.1126/science.274.5290.1155 2024-06-13T04:01:34Z On the basis of synchronization of three carbon-14 ( 14 C)-dated lacustrine sequences from Sweden with tree ring and ice core records, the absolute age of the Younger Dryas-Preboreal climatic shift was determined to be 11,450 to 11,390 ± 80 years before the present. A 150-year-long cooling in the early Preboreal, associated with rising Δ 14 C values, is evident in all records and indicates an ocean ventilation change. This cooling is similar to earlier deglacial coolings, and box-model calculations suggest that they all may have been the result of increased freshwater forcing that inhibited the strength of the North Atlantic heat conveyor, although the Younger Dryas may have begun as an anomalous meltwater event. Article in Journal/Newspaper ice core North Atlantic AAAS Resource Center (American Association for the Advancement of Science) Science 274 5290 1155 1160 |
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Open Polar |
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AAAS Resource Center (American Association for the Advancement of Science) |
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craaas |
language |
English |
description |
On the basis of synchronization of three carbon-14 ( 14 C)-dated lacustrine sequences from Sweden with tree ring and ice core records, the absolute age of the Younger Dryas-Preboreal climatic shift was determined to be 11,450 to 11,390 ± 80 years before the present. A 150-year-long cooling in the early Preboreal, associated with rising Δ 14 C values, is evident in all records and indicates an ocean ventilation change. This cooling is similar to earlier deglacial coolings, and box-model calculations suggest that they all may have been the result of increased freshwater forcing that inhibited the strength of the North Atlantic heat conveyor, although the Younger Dryas may have begun as an anomalous meltwater event. |
format |
Article in Journal/Newspaper |
author |
Björck, Svante Kromer, Bernd Johnsen, Sigfus Bennike, Ole Hammarlund, Dan Lemdahl, Geoffrey Possnert, Göran Rasmussen, Tine Lander Wohlfarth, Barbara Hammer, Claus Uffe Spurk, Marco |
spellingShingle |
Björck, Svante Kromer, Bernd Johnsen, Sigfus Bennike, Ole Hammarlund, Dan Lemdahl, Geoffrey Possnert, Göran Rasmussen, Tine Lander Wohlfarth, Barbara Hammer, Claus Uffe Spurk, Marco Synchronized Terrestrial Atmospheric Deglacial Records Around the North Atlantic |
author_facet |
Björck, Svante Kromer, Bernd Johnsen, Sigfus Bennike, Ole Hammarlund, Dan Lemdahl, Geoffrey Possnert, Göran Rasmussen, Tine Lander Wohlfarth, Barbara Hammer, Claus Uffe Spurk, Marco |
author_sort |
Björck, Svante |
title |
Synchronized Terrestrial Atmospheric Deglacial Records Around the North Atlantic |
title_short |
Synchronized Terrestrial Atmospheric Deglacial Records Around the North Atlantic |
title_full |
Synchronized Terrestrial Atmospheric Deglacial Records Around the North Atlantic |
title_fullStr |
Synchronized Terrestrial Atmospheric Deglacial Records Around the North Atlantic |
title_full_unstemmed |
Synchronized Terrestrial Atmospheric Deglacial Records Around the North Atlantic |
title_sort |
synchronized terrestrial atmospheric deglacial records around the north atlantic |
publisher |
American Association for the Advancement of Science (AAAS) |
publishDate |
1996 |
url |
http://dx.doi.org/10.1126/science.274.5290.1155 https://www.science.org/doi/pdf/10.1126/science.274.5290.1155 |
genre |
ice core North Atlantic |
genre_facet |
ice core North Atlantic |
op_source |
Science volume 274, issue 5290, page 1155-1160 ISSN 0036-8075 1095-9203 |
op_doi |
https://doi.org/10.1126/science.274.5290.1155 |
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Science |
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274 |
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5290 |
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1155 |
op_container_end_page |
1160 |
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1802645498891337728 |