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dc.contributor.authorStocker, Thomas F.
dc.contributor.authorWright, Daniel G.
dc.date.accessioned2021-02-11T20:45:16Z
dc.date.available2021-02-11T20:45:16Z
dc.date.issued1998-01-01
dc.identifier.citationStocker, T. F., & Wright, D. G. (1998). The effect of a succession of ocean ventilation changes on 14C. Radiocarbon, 40(1), 359-366.
dc.identifier.issn0033-8222
dc.identifier.doi10.1017/S0033822200018233
dc.identifier.urihttp://hdl.handle.net/10150/653757
dc.descriptionFrom the 16th International Radiocarbon Conference held in Gronigen, Netherlands, June 16-20, 1997.
dc.description.abstractUsing the model of Stocker and Wright (1996), we investigate the effect of a succession of ocean ventilation changes on the atmospheric concentration of radiocarbon, Delta-14C(atm), the surface reservoir ages, the top-to-bottom age differences, and the calendar-14C age relationships in different regions of the ocean. The model includes a representation of the cycling of 14C through the atmosphere, the ocean and the land biosphere. Ocean ventilation changes are triggered by increasing rates of freshwater discharge into the North Atlantic, which are determined according to a simple feedback mechanism between the melting rates and the climatic state of the North Atlantic region. The results demonstrate that ventilation changes can cause Delta-14C(atm) fluctuations of 25%, surface reservoir age fluctuations of 100 yr in the Pacific (200 yr in the Atlantic) and top-to-bottom age variations of 500 yr in the Pacific (1000 yr in the Atlantic). We also show that 14C age estimates based on marine organisms that live in the near-surface region of the ocean and take up the signal of surface 14C can result in apparent age reversals if the assumption of a constant reservoir age is made.
dc.language.isoen
dc.publisherDepartment of Geosciences, The University of Arizona
dc.relation.urlhttp://radiocarbon.webhost.uits.arizona.edu/
dc.rightsCopyright © by the Arizona Board of Regents on behalf of the University of Arizona. All rights reserved.
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectmeltwater
dc.subjectworld ocean
dc.subjectocean ventilation
dc.subjectpaleo oceanography
dc.subjectocean circulation
dc.subjectresidence time
dc.subjectcarbon cycle
dc.subjectgeochemical cycle
dc.subjectupper Weichselian
dc.subjectWeichselian
dc.subjectYounger Dryas
dc.subjectAtlantic Ocean
dc.subjectNorth Atlantic
dc.subjectconcentration
dc.subjectPacific Ocean
dc.subjectatmosphere
dc.subjecthigh resolution methods
dc.subjectPleistocene
dc.subjectupper Pleistocene
dc.subjectCenozoic
dc.subjectQuaternary
dc.subjectC 14
dc.subjectcarbon
dc.subjectdates
dc.subjectisotopes
dc.subjectradioactive isotopes
dc.subjectabsolute age
dc.titleThe Effect of a Succession of Ocean Ventilation Changes on 14C
dc.typeProceedings
dc.typetext
dc.identifier.journalRadiocarbon
dc.description.noteThis material was digitized as part of a cooperative project between Radiocarbon and the University of Arizona Libraries.
dc.description.collectioninformationThe Radiocarbon archives are made available by Radiocarbon and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information.
dc.eprint.versionFinal published version
dc.description.admin-noteMigrated from OJS platform February 2021
dc.source.volume40
dc.source.issue1
dc.source.beginpage359
dc.source.endpage366
refterms.dateFOA2021-02-11T20:45:16Z


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