SCSIO OpenIR  > 热带海洋环境国家重点实验室(LTO)
Strong Ocean-Atmosphere Interactions during a Short-Term Hot Event over the Western Pacific Warm Pool in Response to El Nino
Chen, Guixing; Qin, Huiling; Qin, HL (reprint author), Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, 164 XinGangXi Rd, Guangzhou 510301, Guangdong, Peoples R China.
2016
Source PublicationJOURNAL OF CLIMATE
Volume29Issue:10Pages:3841-3865
AbstractA short-term hot event with a very high sea surface temperature (SST >= 30 degrees C) occurred in the western Pacific warm pool during November 2006. The interactions between this ocean hot event, atmospheric convection, and large-scale dynamics are studied using satellite observations, buoy measurements, air-sea fluxes analysis, and global reanalysis. It is shown that SST variation and deep convection over the western Pacific behave like a remote response to the El Nino warm SST anomaly in the central Pacific that induces westward-moving atmospheric convection and equatorial waves. The large-scale subsidence associated with propagating convection not only promotes high SSTs in the western Pacific through establishing cloud-free conditions and increasing heat content in a thin ocean mixed layer, but also produces convective instability through capping substantial water vapor in the lower troposphere. Under the precondition of convective instability and the steering of tropical easterlies, some convective systems propagate coherently from the central to western Pacific and intensify. In particular, new cloud clusters are dynamically attracted to the warmest oceans with maximum atmospheric instability. The enhanced convective activity then transfers oceanic energy into the atmosphere, strengthens upper-ocean mixing, and returns the positive SST anomalies to more typical values. In such a coupled system, synoptic-scale convective activities at an interval of 5-8 days are selectively amplified and thus are filtered to an intraseasonal (20-30-day) oscillation, depending on the phase of the hot event over the western Pacific. The observed evidence has implications for the predictability of short-term climate, and it offers critical information for validating the coupled ocean-atmosphere dynamics in climate models.
Department[Chen, Guixing] Sun Yat Sen Univ, Ctr Monsoon & Environm Res, Sch Atmospher Sci, Guangzhou 510275, Guangdong, Peoples R China; [Chen, Guixing] Tohoku Univ, Dept Geophys, Sendai, Miyagi 980, Japan; [Qin, Huiling] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, 164 XinGangXi Rd, Guangzhou 510301, Guangdong, Peoples R China ; LTO
Subject AreaMeteorology & Atmospheric Sciences
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/15366
Collection热带海洋环境国家重点实验室(LTO)
Corresponding AuthorQin, HL (reprint author), Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, 164 XinGangXi Rd, Guangzhou 510301, Guangdong, Peoples R China.
Recommended Citation
GB/T 7714
Chen, Guixing,Qin, Huiling,Qin, HL . Strong Ocean-Atmosphere Interactions during a Short-Term Hot Event over the Western Pacific Warm Pool in Response to El Nino[J]. JOURNAL OF CLIMATE,2016,29(10):3841-3865.
APA Chen, Guixing,Qin, Huiling,&Qin, HL .(2016).Strong Ocean-Atmosphere Interactions during a Short-Term Hot Event over the Western Pacific Warm Pool in Response to El Nino.JOURNAL OF CLIMATE,29(10),3841-3865.
MLA Chen, Guixing,et al."Strong Ocean-Atmosphere Interactions during a Short-Term Hot Event over the Western Pacific Warm Pool in Response to El Nino".JOURNAL OF CLIMATE 29.10(2016):3841-3865.
Files in This Item:
File Name/Size DocType Version Access License
Strong Ocean-Atmosph(8364KB)期刊论文作者接受稿开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.