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A July-August relative humidity record in North China since 1765 AD reconstructed from tree-ring cellulose delta O-18
Cui, Linlin1,2; Liu, Yu1,3,4,5; Li, Qiang1; Song, Huiming1; Fang, Congxi1
通讯作者Liu, Yu(liuyu@loess.llqg.ac.cn)
2021-02-02
发表期刊INTERNATIONAL JOURNAL OF BIOMETEOROLOGY
ISSN0020-7128
页码11
摘要Since the late 1970s, East Asian summer monsoon (EASM) has shown a significant weakening trend, and sustained drought has occurred across North China. Placing recent climate changes in the paleoclimatic context can better understand the EASM variations. Four delta O-18 sequences based on tree-ring cellulose of Chinese pine were developed from Mt. Beiwudang, North China, covering a period from 1700 to 2013. Based on a climatic response analysis, a transfer function was designed to reconstruct the relative humidity from July to August (RHJA hereafter). The RHJA spans from 1765 to 2013 and explains 49% (R-adj(2)= 48%) of the instrumental variance during the calibration period (1961-2013, r = - 0.70, p < 0.0001). The RHJA is mainly influenced by precipitation in the summer rainy season and reflect EASM variations. Spatial representation analysis indicates that RHJA represents the dry/wet variations across North China. At the interannual scale, RHJA records many extreme dry/wet events, among which the events in 1876-1878, 1900, and the 1920s are extensive droughts. Those events correspond well to ENSO events, plus further correlation and periodicity analysis indicate that RHJA contains ENSO signals. At the interdecadal scale, RHJA shows a decreasing trend and unprecedented low values from 1981 to 2013, suggesting that the weakening of EASM since the late 1970s is unprecedented in the past 249 years. Similarly, the significantly correlating region in the spatial correlation analysis, covering the Meiyu/Baiu/Changma rainfall belt and India, have also undergone a climatic shift since the late 1970s according to previous papers.
关键词Tree-ring cellulose δ O-18 Climatic variations North China Drought events Eastern Asian summer monsoon
DOI10.1007/s00484-020-02072-y
收录类别SCI ; SCI
语种英语
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences (CAS)[XDB40000000] ; National Natural Science Foundation of China[41630531] ; Chinese Academy of Sciences[QYZDJ-SSWDQC021] ; Chinese Academy of Sciences[XDA23070202] ; Chinese Academy of Sciences[2019QZKK0101] ; Chinese Academy of Sciences[GJHZ1777] ; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, CAS[SKLLQG1804] ; IEECAS ; SKLLQG
WOS研究方向Biophysics ; Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences ; Physiology
项目资助者Strategic Priority Research Program of the Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, CAS ; IEECAS ; SKLLQG
WOS类目Biophysics ; Environmental Sciences ; Meteorology & Atmospheric Sciences ; Physiology
WOS记录号WOS:000613983900001
出版者SPRINGER
引用统计
被引频次:2[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/361006/15923
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, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China
4.Qingdao Natl Lab Marine Sci & Technol, Qingdao 266237, Peoples R China
5.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian 710049, Peoples R China
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Cui, Linlin,Liu, Yu,Li, Qiang,et al. A July-August relative humidity record in North China since 1765 AD reconstructed from tree-ring cellulose delta O-18[J]. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY,2021:11.
APA Cui, Linlin,Liu, Yu,Li, Qiang,Song, Huiming,&Fang, Congxi.(2021).A July-August relative humidity record in North China since 1765 AD reconstructed from tree-ring cellulose delta O-18.INTERNATIONAL JOURNAL OF BIOMETEOROLOGY,11.
MLA Cui, Linlin,et al."A July-August relative humidity record in North China since 1765 AD reconstructed from tree-ring cellulose delta O-18".INTERNATIONAL JOURNAL OF BIOMETEOROLOGY (2021):11.
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