The migration of publications from boris.unibe.ch to this platform is still ongoing. Please refrain from adding duplicates on this platform, as those will delay the migration and will be deleted eventually. Currently missing: around 20.000 items. Please be patient.
 

Publication:
High-resolution record of Northern Hemisphere climate extending into the last interglacial period

Simple item page
dc.contributor.authorNorth Greenland Ice Core Project, members
dc.date.accessioned2024-09-02T17:43:10Z
dc.date.available2024-09-02T17:43:10Z
dc.date.issued2004
dc.description.abstractTwo deep ice cores from central Greenland, drilled in the 1990s, have played a key role in climate reconstructions of the Northern Hemisphere, but the oldest sections of the cores were disturbed in chronology owing to ice folding near the bedrock. Here we present an undisturbed climate record from a North Greenland ice core, which extends back to 123,000 years before the present, within the last interglacial period. The oxygen isotopes in the ice imply that climate was stable during the last interglacial period, with temperatures 5 °C warmer than today. We find unexpectedly large temperature differences between our new record from northern Greenland and the undisturbed sections of the cores from central Greenland, suggesting that the extent of ice in the Northern Hemisphere modulated the latitudinal temperature gradients in Greenland. This record shows a slow decline in temperatures that marked the initiation of the last glacial period. Our record reveals a hitherto unrecognized warm period initiated by an abrupt climate warming about 115,000 years ago, before glacial conditions were fully developed. This event does not appear to have an immediate Antarctic counterpart, suggesting that the climate see-saw between the hemispheres (which dominated the last glacial period) was not operating at this time.
dc.description.noteM. Bigler, J. Flückiger, C. Huber, M. Leuenberger, R. Rothlisberger, J. Schwander, and T. Stocker are members of the North Greenland Ice Core Project.
dc.description.numberOfPages5
dc.identifier.doi10.48350/158222
dc.identifier.publisherDOI10.1038/nature02805
dc.identifier.urihttps://boris-portal.unibe.ch/handle/20.500.12422/42982
dc.language.isoen
dc.publisherNature Publishing Group
dc.relation.ispartofNature
dc.relation.issn0028-0836
dc.relation.organizationDCD5A442BF29E17DE0405C82790C4DE2
dc.subject.ddc500 - Science::530 - Physics
dc.titleHigh-resolution record of Northern Hemisphere climate extending into the last interglacial period
dc.typearticle
dspace.entity.typePublication
oaire.citation.endPage151
oaire.citation.issue7005
oaire.citation.startPage147
oaire.citation.volume431
oairecerif.author.affiliation#PLACEHOLDER_PARENT_METADATA_VALUE#
oairecerif.author.affiliation2#PLACEHOLDER_PARENT_METADATA_VALUE#
oairecerif.author.affiliation3#PLACEHOLDER_PARENT_METADATA_VALUE#
oairecerif.author.affiliation4#PLACEHOLDER_PARENT_METADATA_VALUE#
unibe.contributor.rolecreator
unibe.date.licenseChanged2021-08-17 09:11:06
unibe.description.ispublishedpub
unibe.eprints.legacyId158222
unibe.journal.abbrevTitleNATURE
unibe.refereedTRUE
unibe.subtype.articlejournal

Files

Original bundle
Now showing 1 - 1 of 1
Name:
northgrip04nat.pdf
Size:
324.63 KB
Format:
Adobe Portable Document Format
License:
publisher
Content:
published
Download

Collections

Publications