气候变化领域集成服务门户(CCPortal): CO2-Induced Decoupling of Tropical Surface and Thermocline Water Temperature at the Onset of Interglacials

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DOI	10.1029/2020GL088805
	CO2-Induced Decoupling of Tropical Surface and Thermocline Water Temperature at the Onset of Interglacials
	Dong, Liang; Zhang, Xu; Jia, Guodong; Du, Yan; Li, Li; Li, Qianyu
通讯作者	Jia, GD (通讯作者)
发表日期	2020
ISSN	0094-8276
EISSN	1944-8007
卷号	47 期号:20
英文摘要	Tropical air-sea interaction is important in global climate change; its behavior over geological history is poorly understood but can be explored by examining reconstructed sea surface temperature (SST) and thermocline water temperature (TWT). Here, deglacial-interglacial air-sea interactions over the past 500 ka were studied by comparing U-37(K')-derived SST0-30m and TEX86H-derived TWT75m in a sediment core from the southern South China Sea. During deglacials, SST0-30m and TWT75m varied synchronously toward interglacial peaks, while during the peak interglacials, TWT75m decreased earlier than SST0-30m. These changes have been found ubiquitously in tropical oceans during the last two glacial-interglacial cycles. We propose that the prolonged warm interglacial SST was probably sustained by the natural CO2 overshoot greenhouse effect at the end of most terminations. The early interglacial TWT decrease following local insolation is driven by the decreasing downward heat transport efficiency induced by weakening wind stirring.
关键词	MERIDIONAL OVERTURNING CIRCULATION TETRAETHER LIPIDS WESTERN PACIFIC CLIMATE-CHANGE SEA MONSOON RECORD OCEAN ENSO VARIABILITY
英文关键词	air‐ sea interaction; sea surface temperature (SST); thermocline water temperature (TWT); CO2 “ overshoot” insolation
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000586497000071
来源期刊	GEOPHYSICAL RESEARCH LETTERS
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260076
推荐引用方式 GB/T 7714	Dong, Liang,Zhang, Xu,Jia, Guodong,et al. CO2-Induced Decoupling of Tropical Surface and Thermocline Water Temperature at the Onset of Interglacials[J]. 中国科学院青藏高原研究所,2020,47(20).
APA	Dong, Liang,Zhang, Xu,Jia, Guodong,Du, Yan,Li, Li,&Li, Qianyu.(2020).CO2-Induced Decoupling of Tropical Surface and Thermocline Water Temperature at the Onset of Interglacials.GEOPHYSICAL RESEARCH LETTERS,47(20).
MLA	Dong, Liang,et al."CO2-Induced Decoupling of Tropical Surface and Thermocline Water Temperature at the Onset of Interglacials".GEOPHYSICAL RESEARCH LETTERS 47.20(2020).