气候变化领域集成服务门户(CCPortal): Paleoclimatic changes and modulation of East Asian summer monsoon by high-latitude forcing over the last 130;000 years as revealed by independently dated loess-paleosol sequences on the NE Tibetan Plateau

CCPortal

DOI	10.1016/j.quascirev.2020.106283
	Paleoclimatic changes and modulation of East Asian summer monsoon by high-latitude forcing over the last 130;000 years as revealed by independently dated loess-paleosol sequences on the NE Tibetan Plateau
	Li G.; Zhang H.; Liu X.; Yang H.; Wang X.; Zhang X.; Jonell T.N.; Zhang Y.; Huang X.; Wang Z.; Yixuan W.; Yu L.; Xia D.
发表日期	2020
ISSN	0277-3791
卷号	237
英文摘要	The variability and interaction of the East Asian summer monsoon (EASM) and mid-latitude Westerlies have dominated Eurasian hydroclimates over orbital timescales and currently influence over a billion lives in Asia. Despite this, the mechanisms influencing EASM-Westerlies variability are still a matter of considerable debate. This study presents three loess-paleosol sequences in the NE Tibetan Plateau (NETP) dated at high-resolution by 50 K-feldspar pIRIR and 37 quartz OSL ages to produce the most detailed chronology for any loess record within the plateau. Combined with this chronology are sedimentology, magnetic susceptibility and grain size analyses with TraCE-21ka climatic modelling to constrain atmospheric controls on climatic changes over the NETP during the past 130 kyr. Our results indicate that deposition initiated by ∼130 ka with especially rapid rates during glacial periods, with maximum rates (140–180 g/cm2/ka) in early MIS 2. Over interglacial-glacial cycles, NETP climatic changes are consistent with warm-moist interglacial and cold-dry glacial conditions recorded in the monsoonal Chinese Loess Plateau and Westerlies-dominated Central Asia but anti-phase to Central Asia during interglacial and the Holocene substages. These results highlight how variation in EASM intensity strongly controls NETP moisture changes but that Holocene and last interglacial changes recorded in the NETP consistently lag 30°N summer insolation by 2–6 kyr. This study suggests high-latitude forcing effectively modulates EASM intensity and that factors such as ice volume, greenhouse gases, and freshwater input to northern Atlantic and Southern oceans critically influence NETP paleoclimatic conditions. © 2020 Elsevier Ltd
英文关键词	Climate change; East asian summer monsoon; Interglacial; Loess; Luminescence dating; Paleosol; Tibetan plateau
语种	英语
scopus关键词	Atmospheric thermodynamics; Feldspar; Glacial geology; Greenhouse gases; Magnetic susceptibility; Moisture control; Atmospheric controls; Chinese Loess Plateau; Climatic changes; East Asian summer monsoon; Freshwater inputs; Grain size analysis; Last interglacial; Ne tibetan plateaux; Sediments; climate forcing; climate modeling; climate variation; freshwater input; glacial-interglacial cycle; Holocene; insolation; latitude; loess; monsoon; paleoclimate; paleosol; sedimentary sequence; summer; westerly; Atlantic Ocean; Central Asia; China; Loess Plateau; Qinghai-Xizang Plateau; Southern Ocean
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151485
作者单位	Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China; College of Geography and Environmental Science, Northwest Normal University, Lanzhou, 730070, China; School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing, 210023, China; School of Earth and Environmental Sciences, The University of Queensland, St. Lucia, QLD 4072, Australia; State Key Laboratory Breeding Base of Desertification and Aeolian Sand Disaster Combating, Gansu Desert Control Research Institute, Lanzhou, 730070, China; Salt Lake Chemistry Analysis and Test Center, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, 810008, China; Shandong Provincial Key Laboratory of Water and Soil Conservation & Environmental Protection, School of Resources and Environmental Sciences, Linyi University, Linyi, 276000, China
推荐引用方式 GB/T 7714	Li G.,Zhang H.,Liu X.,et al. Paleoclimatic changes and modulation of East Asian summer monsoon by high-latitude forcing over the last 130;000 years as revealed by independently dated loess-paleosol sequences on the NE Tibetan Plateau[J],2020,237.
APA	Li G..,Zhang H..,Liu X..,Yang H..,Wang X..,...&Xia D..(2020).Paleoclimatic changes and modulation of East Asian summer monsoon by high-latitude forcing over the last 130;000 years as revealed by independently dated loess-paleosol sequences on the NE Tibetan Plateau.Quaternary Science Reviews,237.
MLA	Li G.,et al."Paleoclimatic changes and modulation of East Asian summer monsoon by high-latitude forcing over the last 130;000 years as revealed by independently dated loess-paleosol sequences on the NE Tibetan Plateau".Quaternary Science Reviews 237(2020).