IOCAS-IR  > 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 Che1
2016
Source PublicationCHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
Volume34Issue:1Pages:212-218
SubtypeArticle
AbstractAnnual 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.
KeywordEquatorial Pacific Annual Rossby Wave Equatorward Shift Argo Profiles Moaa-gpv Gridded Data
DOI10.1007/s00343-015-4405-2
Indexed BySCI
Language英语
WOS IDWOS:000370345300021
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Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/112470
Collection海洋环流与波动重点实验室
Affiliation1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
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.
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