| DOI: | 10.1002/2013GL059076
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| 论文题名: | Marine-based multiproxy reconstruction of Atlantic multidecadal variability |
| 作者: | Svendsen L.; Hetzinger S.; Keenlyside N.; Gao Y.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-10364
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| EISSN: | 1944-10095
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| 出版年: | 2014
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| 卷: | 41, 期:4 | | 起始页码: | 1295
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| 结束页码: | 1300
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| 语种: | 英语
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| 英文关键词: | AMO
; AMV
; coral records
; Multi-decadal variability
; proxy reconstruction
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| Scopus关键词: | Climate change
; Instruments
; Principal component analysis
; AMO
; AMV
; coral records
; Multi-decadal variability
; Proxy reconstruction
; Repair
; air-sea interaction
; climate variation
; data set
; decadal variation
; environmental impact
; instrumentation
; observational method
; principal component analysis
; proxy climate record
; reconstruction
; sea surface temperature
; Atlantic Ocean
; Anthozoa
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| 英文摘要: | Atlantic multidecadal variability (AMV) is known to impact climate globally, and knowledge about the persistence of AMV is important for understanding past and future climate variability, as well as modeling and assessing climate impacts. The short observational data do not significantly resolve multidecadal variability, but recent paleoproxy reconstructions show multidecadal variability in North Atlantic temperature prior to the instrumental record. However, most of these reconstructions are land-based, not necessarily representing sea surface temperature. Proxy records are also subject to dating errors and microenvironmental effects. We extend the record of AMV 90 years past the instrumental record using principle component analysis of five marine-based proxy records to identify the leading mode of variability. The first principal component is consistent with the observed AMV, and multidecadal variability seems to persist prior to the instrumental record. Thus, we demonstrate that reconstructions of past Atlantic low-frequency variability can be improved by combining marine-based proxies. Key Points A new multiproxy reconstruction for AMV based only on marine proxies AMV persists at least back to 1780 There is a need for more marine-based proxy records ©2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84894464378&doi=10.1002%2f2013GL059076&partnerID=40&md5=2bb40316c5258ef285e51eac7d9940a7
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/7628
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Nansen Environmental and Remote Sensing Center, Bjerknes Centre for Climate Research, Bergen, Norway
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| Recommended Citation: | |
Svendsen L.,Hetzinger S.,Keenlyside N.,et al. Marine-based multiproxy reconstruction of Atlantic multidecadal variability[J]. Geophysical Research Letters,2014-01-01,41(4).
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