globalchange  > 过去全球变化的重建
DOI: 10.1007/s00382-011-1229-4
Scopus记录号: 2-s2.0-84866416137
论文题名:
Marine proxy evidence linking decadal North Pacific and Atlantic climate
作者: Hetzinger S.; Halfar J.; Mecking J.V.; Keenlyside N.S.; Kronz A.; Steneck R.S.; Adey W.H.; Lebednik P.A.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2012
卷: 39, 期:6
起始页码: 1447
结束页码: 1455
语种: 英语
英文关键词: Aleutian Low ; Atlantic Multidecadal Variability ; Coralline algae ; Mg/Ca ; North Atlantic Oscillation ; North Pacific
英文摘要: Decadal- to multidecadal variability in the extra-tropical North Pacific is evident in 20th century instrumental records and has significant impacts on Northern Hemisphere climate and marine ecosystems. Several studies have discussed a potential linkage between North Pacific and Atlantic climate on various time scales. On decadal time scales no relationship could be confirmed, potentially due to sparse instrumental observations before 1950. Proxy data are limited and no multi-centennial high-resolution marine geochemical proxy records are available from the subarctic North Pacific. Here we present an annually-resolved record (1818-1967) of Mg/Ca variations from a North Pacific/Bering Sea coralline alga that extends our knowledge in this region beyond available data. It shows for the first time a statistically significant link between decadal fluctuations in sea-level pressure in the North Pacific and North Atlantic. The record is a lagged proxy for decadal-scale variations of the Aleutian Low. It is significantly related to regional sea surface temperature and the North Atlantic Oscillation (NAO) index in late boreal winter on these time scales. Our data show that on decadal time scales a weaker Aleutian Low precedes a negative NAO by several years. This atmospheric link can explain the coherence of decadal North Pacific and Atlantic Multidecadal Variability, as suggested by earlier studies using climate models and limited instrumental data. © 2011 Springer-Verlag.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/55198
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作者单位: CPS-Department, University of Toronto Mississauga, 3359 Mississauga Rd. N, Mississauga, ON L5L 1C6, Canada; IFM-GEOMAR, Leibniz Institute of Marine Sciences, Wischhofstr. 1-3, 24148 Kiel, Germany; IFM-GEOMAR, Leibniz Institute of Marine Sciences, Düsternbrooker Weg 20, 24105 Kiel, Germany; Geowissenschaftliches Zentrum, University of Göttingen, Goldschmidtstr. 1, 37077 Göttingen, Germany; Darling Marine Center, University of Maine, 193 Clarks Cove Road, Walpole, ME 04573, United States; Department of Botany, Smithsonian Institution, 10th and Constitution Ave, NW, Washington, DC 20560-0166, United States; ARCADIS U.S. Inc., 2033 North Main Street, Suite 340, Walnut Creek, CA 94596, United States; Geophysical Institute and Bjerknes Centre for Climate Research, University of Bergen, Bergen, Norway

Recommended Citation:
Hetzinger S.,Halfar J.,Mecking J.V.,et al. Marine proxy evidence linking decadal North Pacific and Atlantic climate[J]. Climate Dynamics,2012-01-01,39(6)
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