Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018GL080716 |
Ocean Circulation Signatures of North Pacific Decadal Variability | |
Wills, Robert C. J.1; Battisti, David S.1; Proistosescu, Cristian2; Thompson, LuAnne3; Hartmann, Dennis L.1; Armour, Kyle C.1,3 | |
2019-02-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:3页码:1690-1701 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The Pacific Decadal Oscillation (PDO) is the dominant pattern of observed sea surface temperature variability in the North Pacific. Its characteristic pattern of eastern intensified warming and cooling within the Kuroshio-Oyashio Extension is pervasive across timescales. We investigate the mechanisms for its decadal persistence in coupled climate models, focusing on the role of ocean circulation changes. We use low-frequency component analysis to isolate the mechanisms relevant at decadal and longer timescales from those acting at shorter timescales. The PDO warm phase is associated with strengthening and expansion of the North Pacific subpolar gyre in response to a deepening of the Aleutian Low. The subpolar gyre takes several years to respond to wind stress forcing through baroclinic ocean Rossby wave adjustment, such that white noise atmospheric forcing is integrated into red noise, increasing variability at long timescales. Sea level anomalies within the Kuroshio-Oyashio Extension provide an observable ocean circulation signature of North Pacific decadal variability. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000462072800063 |
WOS关键词 | KUROSHIO-OYASHIO EXTENSION ; STOCHASTIC CLIMATE MODELS ; SURFACE-TEMPERATURE ; ATMOSPHERIC CIRCULATION ; DYNAMICS ; THERMOCLINE ; OSCILLATION ; FEEDBACKS ; ANOMALIES ; BRIDGE |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/181389 |
专题 | 气候变化 |
作者单位 | 1.Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA; 2.Univ Washington, Joint Inst Study Atmosphere & Ocean, Seattle, WA 98195 USA; 3.Univ Washington, Sch Oceanog, Seattle, WA 98195 USA |
推荐引用方式 GB/T 7714 | Wills, Robert C. J.,Battisti, David S.,Proistosescu, Cristian,et al. Ocean Circulation Signatures of North Pacific Decadal Variability[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(3):1690-1701. |
APA | Wills, Robert C. J.,Battisti, David S.,Proistosescu, Cristian,Thompson, LuAnne,Hartmann, Dennis L.,&Armour, Kyle C..(2019).Ocean Circulation Signatures of North Pacific Decadal Variability.GEOPHYSICAL RESEARCH LETTERS,46(3),1690-1701. |
MLA | Wills, Robert C. J.,et al."Ocean Circulation Signatures of North Pacific Decadal Variability".GEOPHYSICAL RESEARCH LETTERS 46.3(2019):1690-1701. |
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