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

文献类型：期刊论文

作者Fang, Congxi3; Liu, Yu1,2,3; Li, Qiang3; Song, Huiming3; Cai, Qiufang1,2,3; Sun, Changfeng3
刊名INTERNATIONAL JOURNAL OF CLIMATOLOGY
出版日期2022-03-14
页码20
ISSN号0899-8418
关键词El Nino-Southern Oscillation oxygen isotope ratios in precipitation southeastern China tree-ring oxygen isotopes upstream convective condition
DOI10.1002/joc.7601
通讯作者Liu, Yu(liuyu@loess.llqg.ac.cn)
英文摘要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.
WOS关键词ASIAN MONSOON PRECIPITATION ; WESTERN NORTH PACIFIC ; STABLE-ISOTOPES ; ANOMALOUS ANTICYCLONE ; SUMMER MONSOON ; INDIAN MONSOON ; SOURCE WATER ; DELTA-O-18 ; VARIABILITY ; TELECONNECTION
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
语种英语
出版者WILEY
WOS记录号WOS:000768554800001
资助机构Chinese Academy of Sciences ; National Natural Science Foundation of China
源URL[http://ir.ieecas.cn/handle/361006/17547]  
专题地球环境研究所_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.Pilot Qingdao Natl Lab Marine Sci & Technol, Lab Ocean Dynam & Climate, Qingdao, Peoples R China
2.Chinese Acad Sci, CAS Ctr Excellence Quaternary Sci & Global Change, Xian, Peoples R China
3.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian 710061, 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.

入库方式： OAI收割

来源：地球环境研究所

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