globalchange  > 气候减缓与适应
DOI: 10.1029/2017JC013653
Scopus记录号: 2-s2.0-85050494608
论文题名:
Spatiotemporal Features of Intraseasonal Oceanic Variability in the Philippine Sea From Mooring Observations and Numerical Simulations
作者: Hu S.; Sprintall J.; Guan C.; Sun B.; Wang F.; Yang G.; Jia F.; Wang J.; Hu D.; Chai F.
刊名: Journal of Geophysical Research: Oceans
ISSN: 21699275
出版年: 2018
卷: 123, 期:7
起始页码: 4874
结束页码: 4887
语种: 英语
英文摘要: The Philippine Sea is located within the pathway of the propagating Madden-Julian Oscillation system and is also the destination for the North Pacific mesoscale oceanic eddies and waves. As such, the Philippine Sea is characterized by striking intraseasonal variability (ISV; 20–90 days) that plays a key role in bridging weather and climate. Spatial patterns and temporal features of intraseasonal oceanic variability along the Philippine coast are investigated using mooring observations and outputs from an eddy-resolving general circulation model. The amplitude of ISV determined from sea level anomaly is found to decrease from the northern and coastal Philippine Sea to the south and interior Pacific Ocean. In contrast, eddy kinetic energy features a northward decreasing gradient with a maximum at about 6°N. The meridional distribution of sea level anomaly and eddy kinetic energy spectra indicates that the ISV period increases with latitude and is symmetrical about the equator. Mesoscale eddies in the upper layer are tracked to explore the statistical distribution. Westward propagating mesoscale eddies and intraseasonal Rossby waves related to dynamic instabilities are an important source of the oceanic ISV in the Philippine Sea. Clear coastal propagation of ISVs related to coastal Kelvin waves is detected the south of about 14°N. Composite analysis shows that the Madden-Julian Oscillation is another important forcing shaping the spatial features of Philippine ISV intensity and contributes close to half of the observed total ISV. ©2018. The Authors.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113577
Appears in Collections:气候减缓与适应

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作者单位: Key Laboratory of Ocean Circulation and Waves, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; University of Chinese Academy of Sciences, Beijing, China; Laboratory for Ocean and Climate Dynamics, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, China; State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou, China; Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, United States; Laboratory for Regional Oceanography and Numerical Modeling, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; Center for Ocean and Climate Research, First Institute of Oceanography, State Oceanic Administration, Qingdao, China; School of Marine Sciences, University of Maine, Orono, ME, United States

Recommended Citation:
Hu S.,Sprintall J.,Guan C.,et al. Spatiotemporal Features of Intraseasonal Oceanic Variability in the Philippine Sea From Mooring Observations and Numerical Simulations[J]. Journal of Geophysical Research: Oceans,2018-01-01,123(7)
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