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Atlantic Meridional Overturning Circulation During the Last Glacial Maximum

Lynch-Stieglitz, Jean and Adkins, Jess F. and Curry, William B. and Dokken, Trond and Hall, Ian R. and Herguera, Juan Carlos and Hirschi, Joël J.-M. and Ivanova, Elena V. and Kissel, Catherine and Marchal, Olivier and Marchitto, Thomas M. and McCave, I. Nicholas and McManus, Jerry F. and Mulitza, Stefan and Ninnemann, Ulysses and Peeters, Frank and Yu, Ein-Fen and Zahn, Rainer (2007) Atlantic Meridional Overturning Circulation During the Last Glacial Maximum. Science, 316 (5821). pp. 66-69. ISSN 0036-8075. doi:10.1126/science.1137127.

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The circulation of the deep Atlantic Ocean during the height of the last ice age appears to have been quite different from today. We review observations implying that Atlantic meridional overturning circulation during the Last Glacial Maximum was neither extremely sluggish nor an enhanced version of present-day circulation. The distribution of the decay products of uranium in sediments is consistent with a residence time for deep waters in the Atlantic only slightly greater than today. However, evidence from multiple water-mass tracers supports a different distribution of deep-water properties, including density, which is dynamically linked to circulation.

Item Type:Article
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URLURL TypeDescription DOIArticle
Adkins, Jess F.0000-0002-3174-5190
McManus, Jerry F.0000-0002-7365-1600
Additional Information:© 2007 American Association for the Advancement of Science. We thank the Scientific Committee on Ocean Research, IMAGES, and NSF for their support of the Working Group on Past Ocean Circulation and the workshop that was held on this topic in March 2005 at Georgia Tech. We also thank the scientists who contributed their ideas to this review through their participation in that workshop and the ORMEN/VAMOC Workshop on LGM ocean circulation in Amsterdam in October 2005. We thank T. Bickert for providing data for Fig. 1.
Funding AgencyGrant Number
Scientific Committee on Ocean ResearchUNSPECIFIED
Issue or Number:5821
Record Number:CaltechAUTHORS:20120828-142253528
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:33619
Deposited By: Jason Perez
Deposited On:28 Aug 2012 22:38
Last Modified:09 Nov 2021 21:35

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