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Rapid atmospheric CO2 variations and ocean circulation

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dc.contributor.authorSiegenthaler, U.
dc.contributor.authorWenk, Th.
dc.date.accessioned2024-09-02T17:43:37Z
dc.date.available2024-09-02T17:43:37Z
dc.date.issued1984
dc.description.abstractStudies on air trapped in old polar ice (1,2) have shown that during the last ice age, the atmospheric carbon dioxide concentration was probably significantly lower than during the Holocene—about 200 p.p.m. rather than 270 p.p.m. Also, Stauffer et al. (3) recently showed by detailed analyses of Greenland ice cores, that during the ice age, between about 30,000 and 40,000 yr BP, the atmospheric CO2 level probably varied between 200 and 260 p.p.m. These variations occurred parallel to climatic variations as indicated by δ18O of the ice; astonishingly, the changes took place within rather short times, no more than a few centuries or even less. Here we examine the hypothesis (4) that CO2 variations arose from changes in ocean circulation that affected the distribution of chemical properties and thus of P CO2 in the surface waters of the world ocean. Such changes can take place in a rather short time, in contrast to changes of whole ocean properties.
dc.description.numberOfPages2
dc.identifier.doi10.48350/158256
dc.identifier.publisherDOI10.1038/308624a0
dc.identifier.urihttps://boris-portal.unibe.ch/handle/20.500.12422/43015
dc.language.isoen
dc.publisherNature Publishing Group
dc.relation.ispartofNature
dc.relation.issn0028-0836
dc.relation.organizationDCD5A442BF29E17DE0405C82790C4DE2
dc.subject.ddc500 - Science::530 - Physics
dc.titleRapid atmospheric CO2 variations and ocean circulation
dc.typearticle
dspace.entity.typePublication
oaire.citation.endPage626
oaire.citation.issue5960
oaire.citation.startPage624
oaire.citation.volume308
oairecerif.author.affiliation#PLACEHOLDER_PARENT_METADATA_VALUE#
oairecerif.author.affiliation#PLACEHOLDER_PARENT_METADATA_VALUE#
oairecerif.author.affiliation2#PLACEHOLDER_PARENT_METADATA_VALUE#
oairecerif.author.affiliation2#PLACEHOLDER_PARENT_METADATA_VALUE#
oairecerif.author.affiliation3#PLACEHOLDER_PARENT_METADATA_VALUE#
oairecerif.author.affiliation3#PLACEHOLDER_PARENT_METADATA_VALUE#
oairecerif.author.affiliation4#PLACEHOLDER_PARENT_METADATA_VALUE#
oairecerif.author.affiliation4#PLACEHOLDER_PARENT_METADATA_VALUE#
unibe.contributor.rolecreator
unibe.contributor.rolecreator
unibe.date.licenseChanged2021-08-18 09:46:47
unibe.description.ispublishedpub
unibe.eprints.legacyId158256
unibe.journal.abbrevTitleNATURE
unibe.refereedTRUE
unibe.subtype.articlejournal

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