The philippines-taiwan oscillation: Monsoonlike interannual oscillation of the subtropical-tropical western north pacific wind system and its impact on the ocean

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題名:	The philippines-taiwan oscillation: Monsoonlike interannual oscillation of the subtropical-tropical western north pacific wind system and its impact on the ocean
作者:	黃如瑤;Chang, Y.-L.;Oey, L.-Y.
貢獻者:	地球科學學院水文與海洋科學研究所
關鍵詞:	Correlations;Earth, ocean, space;Eddies;Exact sciences and technology;External geophysics;Influence;Marine;Meteorology;Ocean currents;Ocean tides;Oceans;Parent teacher organizations;Sea level;Sea transportation;Seas;Thermocline;Thermoclines;Time series;Wind
日期:	2012-03-01
上傳時間:	2026-04-23 11:08:44 (UTC+8)
出版者:	American Meteorological Society;Boston, MA: American Meteorological Society
摘要:	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. 出版者： Boston, MA: American Meteorological Society 出版日期： 2012-03-01 出處： Journal of Climate, 2012-03, Vol.25 (5), p.1597-1618 資源來源： JSTOR Sustainability (journals titles only - not a separate collection) 版權： 2012 American Meteorological Society 版權： 2015 INIST-CNRS 版權： Copyright American Meteorological Society Mar 1, 2012 識別號： ISSN: 0894-8755 識別號： EISSN: 1520-0442 識別號： DOI: 10.1175/jcli-d-11-00158.1
顯示於類別:	[水文與海洋科學研究所] 期刊論文

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