How is the El Nino-Southern Oscillation signal recorded by tree-ring oxygen isotopes in southeastern China?

doi:10.1002/joc.7601

IEECAS OpenIR > 现代环境研究室

	How is the El Nino-Southern Oscillation signal recorded by tree-ring oxygen isotopes in southeastern China?
	Fang, Congxi 1; Liu, Yu 1,2,3; Li, Qiang 1; Song, Huiming 1; Cai, Qiufang 1,2,3; Sun, Changfeng 1
通讯作者	Liu, Yu(liuyu@loess.llqg.ac.cn)
	2022-03-14
发表期刊	INTERNATIONAL JOURNAL OF CLIMATOLOGY
ISSN	0899-8418
页码	20
摘要	Previous studies universally found that tree-ring oxygen isotope (delta O-18(TR)) in southeastern China (SEC) significantly recorded the El Nino-Southern Oscillation (ENSO) signal. However, the correlation between the climate in SEC and ENSO is insignificant, so the local climatic response of SEC delta O-18(TR) fails to explain the significant positive correlations between these delta O-18(TR) records and ENSO. In this study, based on four delta O-18(TR) series from SEC, meteorological data, simulated precipitation oxygen isotope (delta O-18(P)) data, and a moisture uptake atlas deduced from Lagrangian backward trajectory experiments, a conceptual model was established to explain how the ENSO signal is recorded by SEC delta O-18(TR). During the El Nino decaying years, the Northwest Pacific (NWP) convective activity weakens; the convective weakening areas coincide with the main moisture sources for SEC, which enriches O-18 in moisture that is transported to SEC, resulting in positive anomalies of delta O-18(P) in SEC; finally, the ENSO-modulated delta O-18(P) signal is inherited by SEC delta O-18(TR). The opposite situations occur in the La Nina events. It was also indicated that the change in the moisture contribution percentage from different sources may not be a primary factor that connects SEC delta O-18(TR) with ENSO. These findings contribute to understanding climatic signals represented by delta O-18(TR) and delta O-18(P) in the East Asian monsoon region.
关键词	El Nino-Southern Oscillation oxygen isotope ratios in precipitation southeastern China tree-ring oxygen isotopes upstream convective condition
DOI	10.1002/joc.7601
关键词[WOS]	ASIAN MONSOON PRECIPITATION ; WESTERN NORTH PACIFIC ; STABLE-ISOTOPES ; ANOMALOUS ANTICYCLONE ; SUMMER MONSOON ; INDIAN MONSOON ; SOURCE WATER ; DELTA-O-18 ; VARIABILITY ; TELECONNECTION
收录类别	SCI ; SCI
语种	英语
资助项目	Chinese Academy of Sciences[GJHZ1777] ; Chinese Academy of Sciences[XDB40000000] ; National Natural Science Foundation of China[32061123008] ; National Natural Science Foundation of China[41671212] ; National Natural Science Foundation of China[41902189] ; National Natural Science Foundation of China[41991251]
WOS研究方向	Meteorology & Atmospheric Sciences
项目资助者	Chinese Academy of Sciences ; National Natural Science Foundation of China
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000768554800001
出版者	WILEY
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/17548
专题	现代环境研究室第四纪科学与全球变化卓越创新中心
通讯作者	Liu, Yu
作者单位	1.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian 710061, Peoples R China 2.Chinese Acad Sci, CAS Ctr Excellence Quaternary Sci & Global Change, Xian, Peoples R China 3.Pilot Qingdao Natl Lab Marine Sci & Technol, Lab Ocean Dynam & Climate, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Fang, Congxi,Liu, Yu,Li, Qiang,et al. How is the El Nino-Southern Oscillation signal recorded by tree-ring oxygen isotopes in southeastern China?[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2022:20.
APA	Fang, Congxi,Liu, Yu,Li, Qiang,Song, Huiming,Cai, Qiufang,&Sun, Changfeng.(2022).How is the El Nino-Southern Oscillation signal recorded by tree-ring oxygen isotopes in southeastern China?.INTERNATIONAL JOURNAL OF CLIMATOLOGY,20.
MLA	Fang, Congxi,et al."How is the El Nino-Southern Oscillation signal recorded by tree-ring oxygen isotopes in southeastern China?".INTERNATIONAL JOURNAL OF CLIMATOLOGY (2022):20.