Equatorward shift of annual Rossby waves in the Equatorial Pacific Ocean

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋环流与波动重点实验室

	Equatorward shift of annual Rossby waves in the Equatorial Pacific Ocean
	Ma Xiao1,2 ; Sun Che 1
刊名	CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
	2016
卷号	34 期号:1 页码:212-218
关键词	equatorial Pacific annual Rossby wave equatorward shift Argo profiles MOAA-GPV gridded data
英文摘要	Annual Rossby wave is a key component of the ENSO phenomenon in the equatorial Pacific Ocean. Due to the paucity and seasonal bias in historical hydrographic data, previous studies on equatorial Rossby waves only gave qualitative description. The accumulation of Argo measurements in recent years has greatly alleviated the data problem. In this study, seasonal variation of the equatorial Pacific Ocean is examined with annual harmonic analysis of Argo gridded data. Results show that strong seasonal signal is present in the western equatorial Pacific and explains more than 50% of the thermal variance below 500 m. Lag-correlation tracing further shows that this sub-thermocline seasonal signal originates from the eastern equatorial Pacific via downward and southwestward propagation of annual Rossby waves. Possible mechanisms for the equatorward shift of Rossby wave path are also discussed.
收录类别	SCI
语种	英语
WOS记录号	WOS:000370345300021
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/112470]
专题	海洋研究所_海洋环流与波动重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Ma Xiao,Sun Che. Equatorward shift of annual Rossby waves in the Equatorial Pacific Ocean[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2016,34(1):212-218.
APA	Ma Xiao,&Sun Che.(2016).Equatorward shift of annual Rossby waves in the Equatorial Pacific Ocean.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,34(1),212-218.
MLA	Ma Xiao,et al."Equatorward shift of annual Rossby waves in the Equatorial Pacific Ocean".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 34.1(2016):212-218.