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dc.contributor.authorRae, James W. B.
dc.contributor.authorGray, W. R.
dc.contributor.authorWills, R. C. J.
dc.contributor.authorEisenman, I.
dc.contributor.authorFitzhugh, B.
dc.contributor.authorFotheringham, M.
dc.contributor.authorLittley, Eloise
dc.contributor.authorRafter, P. A.
dc.contributor.authorRees-Owen, Rhian Laura
dc.contributor.authorRidgwell, A.
dc.contributor.authorTaylor, Ben
dc.contributor.authorBurke, Andrea
dc.identifier.citationRae , J W B , Gray , W R , Wills , R C J , Eisenman , I , Fitzhugh , B , Fotheringham , M , Littley , E , Rafter , P A , Rees-Owen , R L , Ridgwell , A , Taylor , B & Burke , A 2020 , ' Overturning circulation, nutrient limitation, and warming in the Glacial North Pacific ' , Science Advances , vol. 6 , no. 50 , eabd1654 .
dc.identifier.otherPURE: 271624729
dc.identifier.otherPURE UUID: 0fc76b39-de1c-4820-920f-5c2fade983e9
dc.identifier.otherPubMed: 33298448
dc.identifier.otherORCID: /0000-0002-3754-1498/work/85168059
dc.identifier.otherORCID: /0000-0003-3904-2526/work/85168069
dc.identifier.otherORCID: /0000-0003-1442-7585/work/85168504
dc.identifier.otherORCID: /0000-0003-0520-4160/work/85168510
dc.identifier.otherWOS: 000597410300016
dc.identifier.otherScopus: 85097916907
dc.descriptionThis work was funded by NERC grant NE/N011716/1 to J.W.B.R., a NERC studentship to B.T., and NSF grant OPP 1643445 to I.E. A.R. acknowledges support from NSF grant 1736771.en
dc.description.abstractAlthough the Pacific Ocean is a major reservoir of heat and CO2, and thus an important component of the global climate system, its circulation under different climatic conditions is poorly understood. Here, we present evidence that during the Last Glacial Maximum (LGM), the North Pacific was better ventilated at intermediate depths and had surface waters with lower nutrients, higher salinity, and warmer temperatures compared to today. Modeling shows that this pattern is well explained by enhanced Pacific meridional overturning circulation (PMOC), which brings warm, salty, and nutrient-poor subtropical waters to high latitudes. Enhanced PMOC at the LGM would have lowered atmospheric CO2—in part through synergy with the Southern Ocean—and supported an equable regional climate, which may have aided human habitability in Beringia, and migration from Asia to North America.
dc.relation.ispartofScience Advancesen
dc.rightsCopyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).en
dc.subjectGC Oceanographyen
dc.titleOverturning circulation, nutrient limitation, and warming in the Glacial North Pacificen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Earth & Environmental Sciencesen
dc.contributor.institutionUniversity of St Andrews.St Andrews Isotope Geochemistryen
dc.description.statusPeer revieweden

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