气候变化领域集成服务门户(CCPortal): Exceptional terrestrial warmth around 4200

CCPortal

DOI	10.1016/j.scib.2021.11.001
	Exceptional terrestrial warmth around 4200–2800 years ago in Northwest China
	Jiang Q.; Meng B.; Wang Z.; Qian P.; Zheng J.; Jiang J.; Zhao C.; Hou J.; Dong G.; Shen J.; Liu W.; Liu Z.; Chen F.
发表日期	2021
英文摘要	One of the Holocene abrupt events around 4200 years ago, lasting for ∼ 200 years, is thought to have caused cultural disruptions, yet terrestrial climatic status right after the cold/dry event remains poorly defined and is often presumed that a generally cool condition prevailed during the Bronze Age (∼ 4000–2200 years ago). Here we report an alkenone-based summer temperature record over the past ∼ 12,000 years, in addition to two updated alkenone records, from Northwest China, providing new insights into the climatic status right after the event. Our results indicate that exceptional terrestrial warmth, up to ∼ 6 °C, occurred around 4200–2800 years ago during the Bronze Age, superimposed on the long-term Holocene cooling trend. The exceptional warmth in Northwest China, together with other climate anomalies elsewhere, suggests an unusual large-scale climatic reorganization at 4200–2800 years ago when solar activity remained high, with important implications to the climate background for cultural developments during the Bronze Age. © 2021 Science China Press
英文关键词	Alkenones; Holocene; Northwest China; Terrestrial temperature; The Bronze Age
语种	英语
scopus关键词	Solar energy; Alkenones; Condition; Cooling trends; Dry events; Holocenes; NorthWest China; Summer temperature; Terrestrial temperature; The bronze age; Bronze
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/251218
作者单位	Institute of Geographic Engineering Technology, School of Geography Sciences, Nantong University, Nantong, 210093, China; Department of Earth Sciences, the University of Hong Kong, Hong Kong; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Center for Excellence in Quaternary Science and Global Change, Chinese Academy of Sciences, Xi'an, 710061, China; School of Geography and Marine Science, Nanjing University, Nanjing, 210046, China; State Key Laboratory of Tibetan Plateau Earth System, Resources and Environment, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, 100101, China; College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China; State Key Laboratory of Lake Sciences and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China
推荐引用方式 GB/T 7714	Jiang Q.,Meng B.,Wang Z.,等. Exceptional terrestrial warmth around 4200–2800 years ago in Northwest China[J],2021.
APA	Jiang Q..,Meng B..,Wang Z..,Qian P..,Zheng J..,...&Chen F..(2021).Exceptional terrestrial warmth around 4200–2800 years ago in Northwest China.Science Bulletin.
MLA	Jiang Q.,et al."Exceptional terrestrial warmth around 4200–2800 years ago in Northwest China".Science Bulletin (2021).