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Possible obliquity-forced warmth in southern Asia during the last glacial stage
Zhao, Cheng1,2,3; Rohling, Eelco J.4,5; Liu, Zhengyu6; Yang, Xiaoqiang7; Zhang, Enlou1,2; Cheng, Jun8; Liu, Zhonghui9; An, Zhisheng2,10; Yang, Xiangdong1; Feng, Xiaoping1; Sun, Xiaoshuang1; Zhang, Can1; Yan, Tianlong1; Long, Hao1,2; Yan, Hong2,10; Yu, Zicheng11,12; Liu, Weiguo2,10; Yu, Shi-Yong13; Shen, Ji1,3
Corresponding AuthorZhao, Cheng(czhao@niglas.ac.cn) ; Shen, Ji(jishen@nju.edu.cn)
2021-06-15
Source PublicationSCIENCE BULLETIN
ISSN2095-9273
Volume66Issue:11Pages:1136-1145
AbstractOrbital-scale global climatic changes during the late Quaternary are dominated by high-latitude influenced -100,000-year global ice-age cycles and monsoon influenced -23,000-year low-latitude hydroclimate variations. However, the shortage of highly-resolved land temperature records remains a limiting factor for achieving a comprehensive understanding of long-term low-latitude terrestrial climatic changes. Here, we report paired mean annual air temperature (MAAT) and monsoon intensity proxy records over the past 88,000 years from Lake Tengchongqinghai in southwestern China. While summer monsoon intensity follows the -23,000-year precession beat found also in previous studies, we identify previously unrecognized warm periods at 88,000 & ndash;71,000 and 45,000 & ndash;22,000 years ago, with 2 & ndash;3 degrees C amplitudes that are close to our recorded full glacial-interglacial range. Using advanced transient climate simulations and comparing with forcing factors, we find that these warm periods in our MAAT record probably depends on local annual mean insolation, which is controlled by Earth & rsquo;s -41,000-year obliquity cycles and is anti-phased to annual mean insolation at high latitudes. The coincidence of our identified warm periods and intervals of high-frequent dated archaeological evidence highlights the importance of temperature on anatomically modern humans in Asia during the last glacial stage. (c) 2020 Science China Press. Published by Elsevier B.V. and Science China Press. All rights reserved.
KeywordSouthern Asia Lake sediments brGDGTs Annual temperature The last glacial stage Obliquity forcing
DOI10.1016/j.scib.2020.11.016
WOS KeywordSEA-SURFACE TEMPERATURE ; DIALKYL GLYCEROL TETRAETHERS ; INDIAN-SUMMER MONSOON ; ALKANE DELTA-D ; ENVIRONMENTAL CONTROLS ; GLOBAL TEMPERATURE ; MOLECULAR RECORDS ; LATE PLEISTOCENE ; SOUTHWEST CHINA ; TIBETAN PLATEAU
Indexed BySCI ; SCI
Language英语
Funding ProjectStrategic Priority Research Program of Chinese Academy of Sciences[XDB40010200] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA2009000004] ; Program of Global Change and Mitigation, Ministry of Science and Technology of China[2016YFA0600502] ; National Natural Science Foundation of China[41877293] ; National Natural Science Foundation of China[41672162] ; National Natural Science Foundation of China[41977381] ; National Natural Science Foundation of China[41472315]
WOS Research AreaScience & Technology - Other Topics
Funding OrganizationStrategic Priority Research Program of Chinese Academy of Sciences ; Program of Global Change and Mitigation, Ministry of Science and Technology of China ; National Natural Science Foundation of China
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000656697400013
PublisherELSEVIER
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/16709
Collection古环境研究室
第四纪科学与全球变化卓越创新中心
Corresponding AuthorZhao, Cheng; Shen, Ji
Affiliation1.Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China
3.Nanjing Univ, Sch Geog & Ocean Sci, Nanjing 210023, Peoples R China
4.Australian Natl Univ, Res Sch Earth Sci, Canberra, ACT 2601, Australia
5.Univ Southampton, Natl Oceanog Ctr, Ocean & Earth Sci, Southampton SO14 3ZH, Hants, England
6.Ohio State Univ, Dept Geog, Columbus, OH 43210 USA
7.Sun Yat Sen Univ, Dept Earth Sci, Guangzhou 510275, Peoples R China
8.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Joint Int Res Lab Climate & Environm Change ILCEC, Lab Meteorol Disaster,Minist Educ KLME, Nanjing 210044, Peoples R China
9.Univ Hong Kong, Dept Earth Sci, Hong Kong 999077, Peoples R China
10.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
11.Lehigh Univ, Dept Earth & Environm Sci, Bethlehem, PA 18015 USA
12.Northeast Normal Univ, Sch Geog Sci, Inst Peat & Mire Res, Changchun 130024, Peoples R China
13.Jiangsu Normal Univ, Sch Geog Geomat & Planning, Xuzhou 221116, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Cheng,Rohling, Eelco J.,Liu, Zhengyu,et al. Possible obliquity-forced warmth in southern Asia during the last glacial stage[J]. SCIENCE BULLETIN,2021,66(11):1136-1145.
APA Zhao, Cheng.,Rohling, Eelco J..,Liu, Zhengyu.,Yang, Xiaoqiang.,Zhang, Enlou.,...&Shen, Ji.(2021).Possible obliquity-forced warmth in southern Asia during the last glacial stage.SCIENCE BULLETIN,66(11),1136-1145.
MLA Zhao, Cheng,et al."Possible obliquity-forced warmth in southern Asia during the last glacial stage".SCIENCE BULLETIN 66.11(2021):1136-1145.
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