The Younger Dryas Termination and North Atlantic Deep Water Formation: Insights from climate model simulations and Greenland Ice Cores ...
Results from the GISP2 and GRIP ice cores show that the termination of the Younger Dryas (YD) climate event in Greenland was a large and extremely fast climate change. A reinitiation of North Atlantic Deep Water formation following a shutdown, and its associated winter release of heat to the atmosph...
Main Authors: | , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
AGU
2010
|
Subjects: | |
Online Access: | https://dx.doi.org/10.13016/m2ppks-0rsp https://mdsoar.org/handle/11603/24304 |
id |
ftdatacite:10.13016/m2ppks-0rsp |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.13016/m2ppks-0rsp 2023-08-27T04:09:41+02:00 The Younger Dryas Termination and North Atlantic Deep Water Formation: Insights from climate model simulations and Greenland Ice Cores ... Fawcett, P. J. Ágústsdóttir, A. M. Alley, R. B. Shuman, Christopher 2010 https://dx.doi.org/10.13016/m2ppks-0rsp https://mdsoar.org/handle/11603/24304 unknown AGU Public Domain Mark 1.0 This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law. http://creativecommons.org/publicdomain/mark/1.0/ CreativeWork article 2010 ftdatacite https://doi.org/10.13016/m2ppks-0rsp 2023-08-07T14:24:23Z Results from the GISP2 and GRIP ice cores show that the termination of the Younger Dryas (YD) climate event in Greenland was a large and extremely fast climate change. A reinitiation of North Atlantic Deep Water formation following a shutdown, and its associated winter release of heat to the atmosphere, has been suggested as the most likely cause of this climate transition. To test this idea, two general circulation model experiments using GENESIS have been completed for YD time (12,000 calendar years ago): one with low heat flux in the Nordic Seas (10 W/m², deep water shutdown) and one with high Nordic Sea heat flux (300 W/m², active deep water formation). Comparison of Greenland climate differences between these experiments with the ice core records shows that when deep water is turned on, much of the YD termination warming is achieved. The increase in precipitation is underestimated because of a model tendency to overestimate summertime precipitation, which obscures the dominantly wintertime response to ... Article in Journal/Newspaper Greenland Greenland ice cores GRIP ice core Nordic Sea Nordic Seas North Atlantic Deep Water North Atlantic DataCite Metadata Store (German National Library of Science and Technology) Greenland |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
description |
Results from the GISP2 and GRIP ice cores show that the termination of the Younger Dryas (YD) climate event in Greenland was a large and extremely fast climate change. A reinitiation of North Atlantic Deep Water formation following a shutdown, and its associated winter release of heat to the atmosphere, has been suggested as the most likely cause of this climate transition. To test this idea, two general circulation model experiments using GENESIS have been completed for YD time (12,000 calendar years ago): one with low heat flux in the Nordic Seas (10 W/m², deep water shutdown) and one with high Nordic Sea heat flux (300 W/m², active deep water formation). Comparison of Greenland climate differences between these experiments with the ice core records shows that when deep water is turned on, much of the YD termination warming is achieved. The increase in precipitation is underestimated because of a model tendency to overestimate summertime precipitation, which obscures the dominantly wintertime response to ... |
format |
Article in Journal/Newspaper |
author |
Fawcett, P. J. Ágústsdóttir, A. M. Alley, R. B. Shuman, Christopher |
spellingShingle |
Fawcett, P. J. Ágústsdóttir, A. M. Alley, R. B. Shuman, Christopher The Younger Dryas Termination and North Atlantic Deep Water Formation: Insights from climate model simulations and Greenland Ice Cores ... |
author_facet |
Fawcett, P. J. Ágústsdóttir, A. M. Alley, R. B. Shuman, Christopher |
author_sort |
Fawcett, P. J. |
title |
The Younger Dryas Termination and North Atlantic Deep Water Formation: Insights from climate model simulations and Greenland Ice Cores ... |
title_short |
The Younger Dryas Termination and North Atlantic Deep Water Formation: Insights from climate model simulations and Greenland Ice Cores ... |
title_full |
The Younger Dryas Termination and North Atlantic Deep Water Formation: Insights from climate model simulations and Greenland Ice Cores ... |
title_fullStr |
The Younger Dryas Termination and North Atlantic Deep Water Formation: Insights from climate model simulations and Greenland Ice Cores ... |
title_full_unstemmed |
The Younger Dryas Termination and North Atlantic Deep Water Formation: Insights from climate model simulations and Greenland Ice Cores ... |
title_sort |
younger dryas termination and north atlantic deep water formation: insights from climate model simulations and greenland ice cores ... |
publisher |
AGU |
publishDate |
2010 |
url |
https://dx.doi.org/10.13016/m2ppks-0rsp https://mdsoar.org/handle/11603/24304 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Greenland ice cores GRIP ice core Nordic Sea Nordic Seas North Atlantic Deep Water North Atlantic |
genre_facet |
Greenland Greenland ice cores GRIP ice core Nordic Sea Nordic Seas North Atlantic Deep Water North Atlantic |
op_rights |
Public Domain Mark 1.0 This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law. http://creativecommons.org/publicdomain/mark/1.0/ |
op_doi |
https://doi.org/10.13016/m2ppks-0rsp |
_version_ |
1775351255125721088 |