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Article: Glacial-interglacial modulation of eastern tropical North Pacific denitrification over the last 1.8-Myr

TitleGlacial-interglacial modulation of eastern tropical North Pacific denitrification over the last 1.8-Myr
Authors
Issue Date2005
Citation
Geophysical Research Letters, 2005, v. 32 n. 23, p. 1-4 How to Cite?
AbstractA 1.8 Myr-long δ15N record from the California margin provides the first continuous record of denitrification in the Eastern Tropical North Pacific (ETNP) over the entire Pleistocene epoch. Comparison of the nitrogen isotopic time series with proxies for ice volume, sea surface temperature (SST), and biological productivity place variations in the intensity of the denitrification zone in the context of global and regional climatic changes. Throughout the Pleistocene, ETNP denitrification remained linked to glacial-interglacial climate cycles. The pacing of denitrification cycles switched from 41-kyr in the mid- to early Pleistocene to 100-kyr in the late Pleistocene, in tandem with the well-known frequency shift identified from ice volume records. It therefore appears that denitrification remained an integral component of the marine feedbacks to orbital forcing, and through its effect on the nitrate inventory of the ocean might have played a role in driving atmospheric CO2 cycles throughout the Pleistocene. Copyright 2005 by the American Geophysical Union.
Persistent Identifierhttp://hdl.handle.net/10722/151177
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.authorAltabet, MAen_US
dc.contributor.authorHerbert, TDen_US
dc.date.accessioned2012-06-26T06:18:16Z-
dc.date.available2012-06-26T06:18:16Z-
dc.date.issued2005en_US
dc.identifier.citationGeophysical Research Letters, 2005, v. 32 n. 23, p. 1-4en_US
dc.identifier.issn0094-8276en_US
dc.identifier.urihttp://hdl.handle.net/10722/151177-
dc.description.abstractA 1.8 Myr-long δ15N record from the California margin provides the first continuous record of denitrification in the Eastern Tropical North Pacific (ETNP) over the entire Pleistocene epoch. Comparison of the nitrogen isotopic time series with proxies for ice volume, sea surface temperature (SST), and biological productivity place variations in the intensity of the denitrification zone in the context of global and regional climatic changes. Throughout the Pleistocene, ETNP denitrification remained linked to glacial-interglacial climate cycles. The pacing of denitrification cycles switched from 41-kyr in the mid- to early Pleistocene to 100-kyr in the late Pleistocene, in tandem with the well-known frequency shift identified from ice volume records. It therefore appears that denitrification remained an integral component of the marine feedbacks to orbital forcing, and through its effect on the nitrate inventory of the ocean might have played a role in driving atmospheric CO2 cycles throughout the Pleistocene. Copyright 2005 by the American Geophysical Union.en_US
dc.languageengen_US
dc.relation.ispartofGeophysical Research Lettersen_US
dc.titleGlacial-interglacial modulation of eastern tropical North Pacific denitrification over the last 1.8-Myren_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.doi10.1029/2005GL024439en_US
dc.identifier.scopuseid_2-s2.0-31544456066en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-31544456066&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume32en_US
dc.identifier.issue23en_US
dc.identifier.spage1en_US
dc.identifier.epage4en_US
dc.identifier.isiWOS:000234247000005-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridLiu, Z=16177844800en_US
dc.identifier.scopusauthoridAltabet, MA=7003622651en_US
dc.identifier.scopusauthoridHerbert, TD=7005866440en_US

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