The climate regime shift in Pacific during 1996/1997.

University of Taipei > 理學院 > 地球環境暨生物資源學系(含環境教育與資源碩士班) > 期刊論文 > Item 987654321/11080

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題名:	The climate regime shift in Pacific during 1996/1997.
作者:	洪志誠;Chi-Cherng Hong;Yi-Kai Wu;Tim Li;Chih-Chun Chang
貢獻者:	地球環境暨生物資源學系(含環境教育與資源碩士班)
關鍵詞:	Climate regime shift;Mixed layer heat budget;Short wave radiation;Oceanic temperature advections
日期:	2013-07
上傳時間:	2014-01-17 19:30:13 (UTC+8)
摘要:	A climate regime shift (CRS) in the Pacific sea surface temperature (SST) pattern was identified in 1996/1997. This decadal SST change is characterized by a warming over the equatorial western Pacific (EWP) and mid-latitude North and South Pacific and a cooling in the equatorial central Pacific (ECP). The large-scale atmospheric circulation change associated with this CRS exhibits a pair of low-level anticyclonic (cyclonic) gyres off the EWP (ECP) and a zonal-vertical overturning circulation anomaly along the equator. Both the empirical orthogonal function and singular vector decomposition analyses indicate that the CRS signal in 1996/1997 is robust. A mixed layer heat budget analysis suggests that the abrupt change of SST in the EWP and ECP is attributed to different physical processes. The abrupt warming over the EWP was initiated by a short wave radiation (SWR) anomaly in association with a preceding warming in the ECP. The cooling in the ECP happened about 6 months later than that of the EWP and was primarily attributed to anomalous oceanic zonal and vertical temperature advections.
關聯:	Climate Dynamics
顯示於類別:	[地球環境暨生物資源學系(含環境教育與資源碩士班)] 期刊論文

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