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Article: Alkenone-based reconstruction of late-Holocene surface temperature and salinity changes in Lake Qinghai, China

TitleAlkenone-based reconstruction of late-Holocene surface temperature and salinity changes in Lake Qinghai, China
Authors
Issue Date2006
Citation
Geophysical Research Letters, 2006, v. 33 n. 9 How to Cite?
AbstractFew proxies can provide quantitative reconstructions of past continental climatic and hydrological changes. Here, we report the first alkenone-based reconstruction of late Holocene temperature and salinity changes in Lake Qinghai, China. The alkenone-temperature proxy (U37 k′) indicates up to a 1°C change in mean annual air temperature or a 2°C change in summer lake water temperature during the late Holocene. Oscillating warm and cold periods could be related to the 20th century warm period, the Little Ice Age, the Medieval Warm Period, the Dark Ages Cold Period, and the Roman Warm Period. The relative importance of C37:4 alkenone to total C37 alkenone production (%C37:4) fluctuated between 15-45%, with higher values during warm periods, suggesting that lake water was also fresher during these periods. The coupled late Holocene surface temperature and salinity changes suggest that Asian monsoons strongly influenced the climate of the Lake Qinghai region. Copyright 2006 by the American Geophysical Union.
Persistent Identifierhttp://hdl.handle.net/10722/151191
ISSN
2015 Impact Factor: 4.212
2015 SCImago Journal Rankings: 3.323
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLiu, Zen_US
dc.contributor.authorHenderson, ACGen_US
dc.contributor.authorHuang, Yen_US
dc.date.accessioned2012-06-26T06:18:28Z-
dc.date.available2012-06-26T06:18:28Z-
dc.date.issued2006en_US
dc.identifier.citationGeophysical Research Letters, 2006, v. 33 n. 9en_US
dc.identifier.issn0094-8276en_US
dc.identifier.urihttp://hdl.handle.net/10722/151191-
dc.description.abstractFew proxies can provide quantitative reconstructions of past continental climatic and hydrological changes. Here, we report the first alkenone-based reconstruction of late Holocene temperature and salinity changes in Lake Qinghai, China. The alkenone-temperature proxy (U37 k′) indicates up to a 1°C change in mean annual air temperature or a 2°C change in summer lake water temperature during the late Holocene. Oscillating warm and cold periods could be related to the 20th century warm period, the Little Ice Age, the Medieval Warm Period, the Dark Ages Cold Period, and the Roman Warm Period. The relative importance of C37:4 alkenone to total C37 alkenone production (%C37:4) fluctuated between 15-45%, with higher values during warm periods, suggesting that lake water was also fresher during these periods. The coupled late Holocene surface temperature and salinity changes suggest that Asian monsoons strongly influenced the climate of the Lake Qinghai region. Copyright 2006 by the American Geophysical Union.en_US
dc.languageengen_US
dc.relation.ispartofGeophysical Research Lettersen_US
dc.titleAlkenone-based reconstruction of late-Holocene surface temperature and salinity changes in Lake Qinghai, Chinaen_US
dc.typeArticleen_US
dc.identifier.emailLiu, Z:zhliu@hku.hken_US
dc.identifier.authorityLiu, Z=rp00750en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1029/2006GL026151en_US
dc.identifier.scopuseid_2-s2.0-33745699434en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33745699434&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume33en_US
dc.identifier.issue9en_US
dc.identifier.isiWOS:000237799300007-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridLiu, Z=16177844800en_US
dc.identifier.scopusauthoridHenderson, ACG=14522518400en_US
dc.identifier.scopusauthoridHuang, Y=7501574588en_US

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