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Asynchronous hydroclimate variability in Northeast Asia during the last millennium

文献类型：期刊论文

作者Chen, Anze5; Zhou, Xin5; Jiang, Shiwei5; Luo, Yong5; Liu, Xuanqiao5; Liu, Junchi4; Li, Xiangzhong3; Wu, Zhenhao5; Ding, Min5; Zhang, Xiaolin5
刊名PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
出版日期2024-09-15
卷号650页码:13
关键词Maar lake sediment Northeast Asia Hydroclimate conditions Spatiotemporal pattern Northeast cold vortex
ISSN号0031-0182
DOI10.1016/j.palaeo.2024.112352
通讯作者Zhou, Xin(xinzhou@ustc.edu.cn)
英文摘要Hydroclimate variability in Northeast (NE) Asia in the last millennium has exhibited spatial disparities, leading to controversies over the driving mechanisms, primarily due to the lack of high-resolution and precisely dated precipitation reconstructions with well-defined proxies. In this study, we presented a high-resolution precipitation record for the past similar to 1500 years, based on geochemical data from annually-laminated sediments of Lake Sihailongwan in central NE Asia. The results showed wetter conditions during the Little Ice Age (LIA) than during the Medieval Climate Anomaly (MCA). To further study the spatiotemporal patterns of hydroclimate variability in NE Asia over the last millennium, sixteen well-dated hydroclimate records for this region were collected and compared. The results showed that rainfall in central NE Asia was higher during the LIA than during the MCA, contrasting with the observed pattern in western NE Asia. The differences in precipitation may be attributed to the comprehensive impact of the northeast cold vortex (NECV) and the East Asian summer monsoon (EASM). Modulated by variations in atmospheric circulation systems at middle to high latitudes, the weakening of the NECV led to decreased precipitation in central NE Asia during the MCA, while the strengthening of the NECV led to increased precipitation in this area during the LIA. Meanwhile, the increase in precipitation in western NE Asia during the MCA was linked to the strengthened EASM, while the decrease in precipitation in this area during the LIA was linked to the weakened EASM. The results of this study elucidate the potential role of the NECV in climate variability on centennial timescales.
WOS关键词MEDIEVAL WARM PERIOD ; ORGANIC-MATTER ; COLD VORTEX ; MAAR LAKE ; VEGETATION CHANGE ; HIGH-RESOLUTION ; SUMMER MONSOON ; CARBON-ISOTOPE ; ATLANTIC OSCILLATION ; SIHAILONGWAN MAAR
资助项目National Key Research and Development Program of China[2022YFF0801101] ; National Nat- ural Science Foundation of China[42488201] ; National Nat- ural Science Foundation of China[41721002] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
WOS研究方向Physical Geography ; Geology ; Paleontology
语种英语
WOS记录号WOS:001266686300001
出版者ELSEVIER
资助机构National Key Research and Development Program of China ; National Nat- ural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
源URL[http://119.78.100.205/handle/311034/23830]  
专题中国科学院古脊椎动物与古人类研究所
通讯作者Zhou, Xin
作者单位1.Yuxi Normal Univ, Sch Chem Biol & Environm, Yuxi 653100, Yunnan, Peoples R China
2.Hefei Univ Technol, Sch Resources & Environm Engn, Hefei 230009, Anhui, Peoples R China
3.Yunnan Univ, Yunnan Key Lab Earth Syst Sci, Kunming 650500, Yunnan, Peoples R China
4.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China
5.Univ Sci & Technol China, Sch Earth & Space Sci, Hefei 230026, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Anze,Zhou, Xin,Jiang, Shiwei,et al. Asynchronous hydroclimate variability in Northeast Asia during the last millennium[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2024,650:13.
APA Chen, Anze.,Zhou, Xin.,Jiang, Shiwei.,Luo, Yong.,Liu, Xuanqiao.,...&Shen, Yanan.(2024).Asynchronous hydroclimate variability in Northeast Asia during the last millennium.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,650,13.
MLA Chen, Anze,et al."Asynchronous hydroclimate variability in Northeast Asia during the last millennium".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 650(2024):13.

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来源：古脊椎动物与古人类研究所

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