SCSIO OpenIR  > 热带海洋环境国家重点实验室(LTO)
A local positive feedback of the tropical Pacific ocean-atmosphere system on interdecadal timescales
Li, CH; Wang, DX; Liang, JY; Gu, DJ; Liu, Y; dxwang@scsio.ac.cn
2006
Source PublicationCHINESE SCIENCE BULLETIN
ISSN1001-6538
Volume51Issue:5Pages:601-606
AbstractInterdecadal variability characteristics of ocean-atmosphere interaction in the tropical areas are investigated by using atmospheric reanalysis data and oceanic dataset. Results indicate that due to the ocean-atmosphere system's internal adjustment on interdecadal time scales, the exchanges of latent heat and sensible heat between the ocean and atmosphere are reduced by means of weakening trade wind, causing oceanic thermocline anomalies and resulting in unusual warming of sea surface temperature in the central and eastern Pacific. Meanwhile the increases of sea surface temperature facilitate much more development of convection in the eastern Pacific and excite a local ascending motion in the eastern and anomalous westerlies in the central and eastern Pacific, which further weaken the Walker circulation, and vice versa. Thus these processes constitute an interdecadal mode of positive feedback. This interdecadal feedback of the tropical ocean-atmosphere system is different from the previous conclusion of a so-called midlatitude-driving mechanism, which was used to explain the decadal variability in the tropical Pacific Ocean.
DepartmentChinese Acad Sci, S China Sea Inst Oceanol, Lab Trop Marine Environm Dynam, Guangzhou 510301, Peoples R China; China Meteorol Adm, Inst Trop & Marine Meteorol, Guangzhou 510080, Peoples R China; Univ Wisconsin, Ctr Climat Res, Madison, WI 53706 USA
KeywordTropical Pacific Ocean Interdecadal Variability Positive Feedback Walker Circulation
Subject AreaMultidisciplinary Sciences
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Indexed Bysci
Funding ProjectLED
WOS IDWOS:000236874400015
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/5807
Collection热带海洋环境国家重点实验室(LTO)
Corresponding Authordxwang@scsio.ac.cn
Recommended Citation
GB/T 7714
Li, CH,Wang, DX,Liang, JY,et al. A local positive feedback of the tropical Pacific ocean-atmosphere system on interdecadal timescales[J]. CHINESE SCIENCE BULLETIN,2006,51(5):601-606.
APA Li, CH,Wang, DX,Liang, JY,Gu, DJ,Liu, Y,&dxwang@scsio.ac.cn.(2006).A local positive feedback of the tropical Pacific ocean-atmosphere system on interdecadal timescales.CHINESE SCIENCE BULLETIN,51(5),601-606.
MLA Li, CH,et al."A local positive feedback of the tropical Pacific ocean-atmosphere system on interdecadal timescales".CHINESE SCIENCE BULLETIN 51.5(2006):601-606.
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