File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: A 4-Ma record of thermal evolution in the tropical western Pacific and its implications on climate change

TitleA 4-Ma record of thermal evolution in the tropical western Pacific and its implications on climate change
Authors
KeywordsAlkenone-based temperature
Plio-Pleistocene thermal evolution
Temperature gradient
Tropical western Pacific
Issue Date2011
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/epsl
Citation
Earth And Planetary Science Letters, 2011, v. 309 n. 1-2, p. 10-20 How to Cite?
AbstractOrbital resolution thermal histories over the last 4. Ma at ODP Site 1143 in the tropical western Pacific are reconstructed using alkenone paleothermometry. The temperature profile is characterized by a steady state of ~. 29 °C with fluctuations < 1 °C before 2.7. Ma and by a strong oscillating state from 2.7. Ma, largely due to cooling by up to 4 °C from ~. 29 °C in interglacial to 26 °C in glacial intervals. This implies a relative warm and stable surface hydrography during the early and mid Pliocene in this region influenced by the warm pool before temperature decreases in responding to global cooling and the formation of the distinct glacial stages since the late Pliocene. Therefore, the smaller SST gradient between tropical eastern and western Pacific and between southern and northern South China Sea before the late Pliocene indicates a super sized Pliocene Pacific warm pool, while the larger SST gradient since then marks progressively intensification of the zonal Walker circulation and meridional Hadley circulation, representing the monsoon circulations in the region. The intensification of the Walker and Hadley circulations over the tropical Pacific may also have helped on the onset of glaciations and subsequent deglaciations during the late Pliocene and Pleistocene. © 2011 Elsevier B.V.
Persistent Identifierhttp://hdl.handle.net/10722/139168
ISSN
2015 Impact Factor: 4.326
2015 SCImago Journal Rankings: 3.628
ISI Accession Number ID
Funding AgencyGrant Number
US National Science Foundation (NSF)
National Natural Science Foundation of China40976022
40631007
41076017
Ministry of Science and Technology of China2007CB815902
2007CB815904
China Geological SurveyH[2010] MA03-06-04
Funding Information:

This research used samples and data provided by the Ocean Drilling Program (ODP). ODP is sponsored by the US National Science Foundation (NSF) and participating countries under management of Joint Oceanographic Institutions (JOI), Inc. Funding for this research was provided by grants from the National Natural Science Foundation of China (40976022, 40631007 and 41076017), the Ministry of Science and Technology of China (No. 2007CB815902 and No. 2007CB815904), and the China Geological Survey (Project H[2010] MA03-06-04). We thank Tim Herbert for discussions and comments on an early draft of the manuscript. Review and comments by Peter deMenocal and two anonymous reviewers significantly helped to improve the manuscript.

References

 

DC FieldValueLanguage
dc.contributor.authorLi, Len_HK
dc.contributor.authorLi, Qen_HK
dc.contributor.authorTian, Jen_HK
dc.contributor.authorWang, Pen_HK
dc.contributor.authorWang, Hen_HK
dc.contributor.authorLiu, Zen_HK
dc.date.accessioned2011-09-23T05:46:18Z-
dc.date.available2011-09-23T05:46:18Z-
dc.date.issued2011en_HK
dc.identifier.citationEarth And Planetary Science Letters, 2011, v. 309 n. 1-2, p. 10-20en_HK
dc.identifier.issn0012-821Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/139168-
dc.description.abstractOrbital resolution thermal histories over the last 4. Ma at ODP Site 1143 in the tropical western Pacific are reconstructed using alkenone paleothermometry. The temperature profile is characterized by a steady state of ~. 29 °C with fluctuations < 1 °C before 2.7. Ma and by a strong oscillating state from 2.7. Ma, largely due to cooling by up to 4 °C from ~. 29 °C in interglacial to 26 °C in glacial intervals. This implies a relative warm and stable surface hydrography during the early and mid Pliocene in this region influenced by the warm pool before temperature decreases in responding to global cooling and the formation of the distinct glacial stages since the late Pliocene. Therefore, the smaller SST gradient between tropical eastern and western Pacific and between southern and northern South China Sea before the late Pliocene indicates a super sized Pliocene Pacific warm pool, while the larger SST gradient since then marks progressively intensification of the zonal Walker circulation and meridional Hadley circulation, representing the monsoon circulations in the region. The intensification of the Walker and Hadley circulations over the tropical Pacific may also have helped on the onset of glaciations and subsequent deglaciations during the late Pliocene and Pleistocene. © 2011 Elsevier B.V.en_HK
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/epslen_HK
dc.relation.ispartofEarth and Planetary Science Lettersen_HK
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in <Journal title>. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in PUBLICATION, [VOL#, ISSUE#, (DATE)] DOI#en_US
dc.subjectAlkenone-based temperatureen_HK
dc.subjectPlio-Pleistocene thermal evolutionen_HK
dc.subjectTemperature gradienten_HK
dc.subjectTropical western Pacificen_HK
dc.titleA 4-Ma record of thermal evolution in the tropical western Pacific and its implications on climate changeen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0012-821X&volume=309&issue=1-2&spage=10&epage=20&date=2011&atitle=A+4-Ma+record+of+thermal+evolution+in+the+tropical+western+Pacific+and+its++implications+on+climate+change-
dc.identifier.emailLiu, Z:zhliu@hku.hken_HK
dc.identifier.authorityLiu, Z=rp00750en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.epsl.2011.04.016en_HK
dc.identifier.scopuseid_2-s2.0-79961129382en_HK
dc.identifier.hkuros193875en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79961129382&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume309en_HK
dc.identifier.issue1-2en_HK
dc.identifier.spage10en_HK
dc.identifier.epage20en_HK
dc.identifier.isiWOS:000295151400002-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridLi, L=8560300000en_HK
dc.identifier.scopusauthoridLi, Q=35766759300en_HK
dc.identifier.scopusauthoridTian, J=35346173900en_HK
dc.identifier.scopusauthoridWang, P=35276106900en_HK
dc.identifier.scopusauthoridWang, H=15052706700en_HK
dc.identifier.scopusauthoridLiu, Z=16177844800en_HK
dc.identifier.citeulike9654170-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats