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学科主题: Geochemistry & Geophysics; Meteorology & Atmospheric Sciences; Oceanography
题名: Interannual heat content variability in the South China Sea and its response to ENSO
作者: Yan, YF ; Qi, YQ ; Zhou, W
通讯作者: youfangyan@scsio.ac.cn
关键词: Ocean heat content ; South China Sea ; Interannual variability ; ENSO
刊名: DYNAMICS OF ATMOSPHERES AND OCEANS
发表日期: 2010
卷: 50, 期:3, 页:400-414
收录类别: sci
部门归属: [Yan, Youfang; Qi, Yiquan] Chinese Acad Sci, LED, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China; [Yan, Youfang; Zhou, Wen] City Univ Hong Kong, Sch Energy & Environm, Guy Carpenter Asia Pacific Climate Impact Ctr, Hong Kong, Hong Kong, Peoples R China
项目归属: LED
摘要: The interannual variability of upper ocean heat content (OHC) in the South China Sea (SCS) for the period of 1987-2006 and its response to ENSO events are investigated. It is found that the variability has a good correspondence with ENSO events, but with opposite phase. Negative OHC anomalies appear during ENSO warm phases, while positive OHC anomalies occur during ENSO cool phases. In addition, negative (positive) OHC anomalies propagate westward obviously during ENSO warm (cool) phases in the northern SCS. In contrast. OHC anomalies in the southern SCS do not exhibit distinct westward propagation during ENSO events. To explore why the OHC anomalies cannot propagate westward in the southern SCS, the interannual variability of oceanic and atmospheric anomaly fields including wind stress curl (WSC), horizontal wind stress, latent heat flux (LHF) and sea level pressure (SLP) is investigated. The results show that after a mature phase of ENSO warm (cool) event, negative (positive) OHC anomalies first appear in the northern SCS, which comes from the western Pacific through Luzon Strait. Then cyclonic (anticyclonic) wind stress anomalies occur in the northern SCS, which leads to positive (negative) WSC anomalies. Meanwhile, positive (negative) LHF anomalies which correspond to oceanic heat loss (gain) occur in this region. The effects of WSC and LHF, combined with the westward propagating negative (positive) OHC anomalies from the western Pacific, may contribute to rapid growth and propagation of the OHC anomalies in the northern SCS. On the contrary, the negative (positive) WSC and LHF anomalies associated with positive (negative) SLP in the southern SCS seem to be the important processes responsible for the weakening and non-propagation of the OHC anomalies in the southern SCS after a mature phase of ENSO warm (cool) event. (C) 2010 Elsevier B.V. All rights reserved.
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WOS记录号: WOS:000283892100002
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/6199
Appears in Collections:热带海洋环境动力实验室(LTO)_期刊论文

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Yan, YF; Qi, YQ; Zhou, W.Interannual heat content variability in the South China Sea and its response to ENSO,DYNAMICS OF ATMOSPHERES AND OCEANS,2010,50(3):400-414
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