气候变化领域集成服务门户(CCPortal): Possible obliquity-forced warmth in southern Asia during the last glacial stage

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DOI	10.1016/j.scib.2020.11.016
	Possible obliquity-forced warmth in southern Asia during the last glacial stage
	Zhao C.; Rohling E.J.; Liu Z.; Yang X.; Zhang E.; Cheng J.; Liu Z.; An Z.; Yang X.; Feng X.; Sun X.; Zhang C.; Yan T.; Long H.; Yan H.; Yu Z.; Liu W.; Yu S.-Y.; Shen J.
发表日期	2021
ISSN	20959273
起始页码	1136
结束页码	1145
卷号	66 期号:11
英文摘要	Orbital-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 88,000–71,000 and 45,000–22,000 years ago, with 2–3 °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'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. © 2020 Science China Press
关键词	Annual temperature brGDGTs Lake sediments Obliquity forcing Southern Asia The last glacial stage
英文关键词	Atmospheric thermodynamics; Incident solar radiation; Orbits; Climate simulation; Climatic changes; Global climatic changes; High Latitudes; Late quaternary; Mean annual air temperatures; Monsoon intensity; Summer monsoon; Glacial geology
语种	英语
来源期刊	Science Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207680
作者单位	State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China; Center for Excellence in Quaternary Science and Global Change, Chinese Academy of Sciences, Xi'an, 710061, China; School of Geography and Ocean Science, Nanjing University, Nanjing, 210023, China; Research School of Earth Sciences, the Australian National University, Canberra, ACT 2601, Australia; Ocean and Earth Science, University of Southampton, National Oceanography Centre, Southampton, SO14 3ZH, United Kingdom; Department of Geography, Ohio State University, Columbus, 43210, United States; Department of Earth Sciences, Sun Yat-sen University, Guangzhou, 510275, China; Laboratory of Meteorological Disaster, Ministry of Education (KLME)/Joint International Research Laboratory of Climate and Environment Change (ILCEC)/Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Sci...
推荐引用方式 GB/T 7714	Zhao C.,Rohling E.J.,Liu Z.,et al. Possible obliquity-forced warmth in southern Asia during the last glacial stage[J],2021,66(11).
APA	Zhao C..,Rohling E.J..,Liu Z..,Yang X..,Zhang E..,...&Shen J..(2021).Possible obliquity-forced warmth in southern Asia during the last glacial stage.Science Bulletin,66(11).
MLA	Zhao C.,et al."Possible obliquity-forced warmth in southern Asia during the last glacial stage".Science Bulletin 66.11(2021).