Contrasting changes in the sea surface temperature and upper ocean heat content in the South China Sea during recent decades

doi:10.1007/s00382-019-04697-1

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 热带海洋环境国家重点实验室(LTO)

	Contrasting changes in the sea surface temperature and upper ocean heat content in the South China Sea during recent decades
	Liu, Qin-Yan ; Xiao, Fuan ; Wang, Dongxiao ; Zeng, Lili ; Zhou, Wen 2
刊名	CLIMATE DYNAMICS
	2019
卷号	53 期号:2019-03-04 页码:1597
关键词	Sea surface temperature Upper ocean heat content South China Sea Regime shift Interdecadal Pacific Oscillation
ISSN号	0930-7575
DOI	10.1007/s00382-019-04697-1
英文摘要	Understanding the variability of upper ocean thermal conditions is key to regional climate prediction. In recent decades, the sea surface temperature and upper ocean heat content in the South China Sea (SCS SST and SCS OHC) have exhibited contrasting changes. In-situ observations and reanalysis data reveal a linear warming trend in SCS SST during 1975-2010 but a regime shift of SCS OHC during the late 1990s. Mixed layer heat budget analysis shows that the decreasing latent heat flux associated with a weakening surface wind contributes to SCS SST warming trend. The increasing SCS SST reflects a regional footprint of global warming. A simplified upper layer budget diagnosis reveals that more than half of OHC change results from the advection effect, which is caused by an anomalous SCS anticyclonic gyre associated with an anomalous negative wind stress curl. Then, the anomalous anticyclonic circulation deepens thermocline depth at the basin-scale, and result in the regime shift of SCS OHC. Changes in the ocean circulation are found to be related to the enhanced trade wind and a Matsuno-Gill response to cooling in the tropical central Pacific. Further analyses show that the regime shift process is attributed to a phase transition of the Interdecadal Pacific Oscillation (IPO) from positive to negative. Our results indicate that although the IPO is the sea surface low-frequency climate pattern, it could impact on the subsurface thermal variability in the SCS through the oceanic process.
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/17699]
专题	南海海洋研究所_热带海洋环境国家重点实验室(LTO)
作者单位	1.City Univ Hong Kong, Guy Carpenter Asia Pacific Climate Impact Ctr, Sch Energy & Environm, Kowloon, Hong Kong, Peoples R China 2.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China 3.Guangzhou Univ, Sch Geog Sci, Guangzhou 510006, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Liu, Qin-Yan,Xiao, Fuan,Wang, Dongxiao,et al. Contrasting changes in the sea surface temperature and upper ocean heat content in the South China Sea during recent decades[J]. CLIMATE DYNAMICS,2019,53(2019-03-04):1597, 1612.
APA	Liu, Qin-Yan,Xiao, Fuan,Wang, Dongxiao,Zeng, Lili,&Zhou, Wen.(2019).Contrasting changes in the sea surface temperature and upper ocean heat content in the South China Sea during recent decades.CLIMATE DYNAMICS,53(2019-03-04),1597.
MLA	Liu, Qin-Yan,et al."Contrasting changes in the sea surface temperature and upper ocean heat content in the South China Sea during recent decades".CLIMATE DYNAMICS 53.2019-03-04(2019):1597.