DOI: 10.1175/JCLI-D-11-00158.1
Scopus记录号: 2-s2.0-84863235970
论文题名: The philippines-taiwan oscillation: Monsoonlike interannual oscillation of the subtropical-tropical western north pacific wind system and its impact on the ocean
作者: Chang Y.-L. ; Oey L.-Y.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2012
卷: 25, 期: 5 起始页码: 1597
结束页码: 1618
语种: 英语
Scopus关键词: Boundary currents
; Cyclonic circulation
; East China Sea
; Eddies
; Eddy activity
; Indices
; Interannual
; Interannual variability
; Kuroshio
; Mesoscale
; Nonlinear nature
; North Equatorial Current
; Ocean circulation
; Philippines
; Satellite data
; Sea-surface height anomalies
; South China sea
; Subtropical countercurrent
; Tide gauges
; Vertical shear
; Warm eddy
; Western North Pacific
; Wind stress curl
; Wind systems
; Nickel compounds
; Ocean currents
; Shear flow
; Tropics
; air-sea interaction
; annual variation
; boundary current
; climate oscillation
; eddy
; inflow
; monsoon
; oceanic circulation
; satellite data
; sea surface height
; thermocline
; tide gauge
; wind stress
; East China Sea
; Luzon Strait
; North Equatorial Current
; Pacific Ocean
; Philippines
; South China Sea
; Taiwan
英文摘要: Tide gauge and satellite data reveal an interannual oscillation of the ocean's thermoclines east of the Philippines and Taiwan, forced by a corresponding oscillation in the wind stress curl. This so-called Philippines-Taiwan Oscillation (PTO) is shown to control the interannual variability of the circulation of the subtropical and tropical western North Pacific. The PTO shares some characteristics of known Pacific indices, for example, Niño-3.4. However, unlike PTO, these other indices explain only portions of the western North Pacific circulation. The reason is because of the nonlinear nature of the forcing in which mesoscale (ocean) eddies play a crucial role. In years of positive PTO, the thermocline east of the Philippines rises while east of Taiwan it deepens. This results in a northward shift of the North Equatorial Current (NEC), increased vertical shear of the Subtropical Countercurrent (STCC)/NEC system, increased eddy activity dominated by warm eddies in the STCC, increased Kuroshio transport off the northeastern coast of Taiwan into the East China Sea, increased westward inflow through Luzon Strait into the South China Sea, and cyclonic circulation and low sea surface height anomalies in the South China Sea. The reverse applies in years of negative PTO. © 2012 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52541
Appears in Collections: 气候变化事实与影响
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作者单位: Princeton University, Princeton, NJ, United States; National Taiwan Normal University, Taipei, Taiwan; National Central University, Jhongli, Taiwan
Recommended Citation:
Chang Y.-L.,Oey L.-Y.. The philippines-taiwan oscillation: Monsoonlike interannual oscillation of the subtropical-tropical western north pacific wind system and its impact on the ocean[J]. Journal of Climate,2012-01-01,25(5)