File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: A 12-million-year temperature history of the tropical Pacific Ocean

TitleA 12-million-year temperature history of the tropical Pacific Ocean
Authors
Issue Date2014
PublisherAmerican Association for the Advancement of Science. The Journal's web site is located at http://sciencemag.org
Citation
Science, 2014, v. 344 n. 6179, p. 84-87 How to Cite?
AbstractThe appearance of permanent El Niño–like conditions prior to 3 million years ago is founded on sea-surface temperature (SST) reconstructions that show invariant Pacific warm pool temperatures and negligible equatorial zonal temperature gradients. However, only a few SST records are available, and these are potentially compromised by changes in seawater chemistry, diagenesis, and calibration limitations. For this study, we establish new biomarker-SST records and show that the Pacific warm pool was ~4°C warmer 12 million years ago. Both the warm pool and cold tongue slowly cooled toward modern conditions while maintaining a zonal temperature gradient of ~3°C in the late Miocene, which increased during the Plio-Pleistocene. Our results contrast with previous temperature reconstructions that support the supposition of a permanent El Niño–like state.
Persistent Identifierhttp://hdl.handle.net/10722/200568
ISSN
2015 Impact Factor: 34.661
2015 SCImago Journal Rankings: 13.217

 

DC FieldValueLanguage
dc.contributor.authorZhang, Yen_US
dc.contributor.authorPagani, Men_US
dc.contributor.authorLiu, Zen_US
dc.date.accessioned2014-08-21T06:51:46Z-
dc.date.available2014-08-21T06:51:46Z-
dc.date.issued2014en_US
dc.identifier.citationScience, 2014, v. 344 n. 6179, p. 84-87en_US
dc.identifier.issn0036-8075-
dc.identifier.urihttp://hdl.handle.net/10722/200568-
dc.description.abstractThe appearance of permanent El Niño–like conditions prior to 3 million years ago is founded on sea-surface temperature (SST) reconstructions that show invariant Pacific warm pool temperatures and negligible equatorial zonal temperature gradients. However, only a few SST records are available, and these are potentially compromised by changes in seawater chemistry, diagenesis, and calibration limitations. For this study, we establish new biomarker-SST records and show that the Pacific warm pool was ~4°C warmer 12 million years ago. Both the warm pool and cold tongue slowly cooled toward modern conditions while maintaining a zonal temperature gradient of ~3°C in the late Miocene, which increased during the Plio-Pleistocene. Our results contrast with previous temperature reconstructions that support the supposition of a permanent El Niño–like state.-
dc.languageengen_US
dc.publisherAmerican Association for the Advancement of Science. The Journal's web site is located at http://sciencemag.orgen_US
dc.relation.ispartofScienceen_US
dc.titleA 12-million-year temperature history of the tropical Pacific Oceanen_US
dc.typeArticleen_US
dc.identifier.emailLiu, Z: zhliu@hku.hken_US
dc.identifier.authorityLiu, Z=rp00750en_US
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1126/science.1246172-
dc.identifier.scopuseid_2-s2.0-84897514345-
dc.identifier.hkuros233785en_US
dc.identifier.volume344en_US
dc.identifier.issue6179-
dc.identifier.spage84en_US
dc.identifier.epage87en_US
dc.publisher.placeUnited States-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats