globalchange  > 气候减缓与适应
DOI: 10.1175/JCLI-D-17-0309.1
Scopus记录号: 2-s2.0-85040597852
论文题名:
Increased eddy activity in the Northeastern Pacific during 1993-2011
作者: Ding M.; Lin P.; Liu H.; Chai F.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2018
卷: 31, 期:1
起始页码: 387
结束页码: 399
语种: 英语
英文关键词: Decadal variability ; Eddies ; Trends
Scopus关键词: Kinetics ; Anticyclonic eddies ; Decadal variability ; Eddies ; Eddy kinetic energy ; Long-term behavior ; North-eastern Pacific ; Pacific decadal oscillation ; Trends ; Kinetic energy ; anticyclone ; climate modeling ; gyre ; kinetic energy ; mesoscale eddy ; Pacific Decadal Oscillation ; surface wind ; trend analysis ; Pacific Ocean ; Pacific Ocean (Northeast)
英文摘要: The authors study the long-term behaviors of eddy activity in the northeastern Pacific (NEP) and the dynamic mechanism behind them, using the third version of the mesoscale eddy trajectory dataset released by Chelton and Schlax as well as other observation and reanalysis datasets. Both the eddy kinetic energy (EKE) and eddy occurrence number (EON) present prominent increases, with interannual and decadal variabilities northeast of the Hawaiian-Emperor seamounts. The increasing EON is mainly due to the prolongation of eddy lifetimes associated with eddy intensification, particularly for anticyclonic eddies (AEs). The prolongation of eddy lifetimes results from weakened surface winds. The enhanced anticyclonic wind stress curl (WSC) injects more energy into the AEs in the study domain, providing a more suitable environment for their growth. The decadal climate modes, such as the Pacific decadal oscillation (PDO) and the North Pacific Gyre Oscillation (NPGO), may also modulate eddy activity in the NEP by exerting fluctuations in the surface wind system. © 2018 American Meteorological Society.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111739
Appears in Collections:气候减缓与适应

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作者单位: State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Beijing, China; College of Earth Science, University of Chinese Academy of Sciences, Beijing, China; School of Marine Sciences, University of Maine, Orono, ME, United States; State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou, China

Recommended Citation:
Ding M.,Lin P.,Liu H.,et al. Increased eddy activity in the Northeastern Pacific during 1993-2011[J]. Journal of Climate,2018-01-01,31(1)
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