气候变化领域集成服务门户(CCPortal): Late quaternary glacial history of the La Ji Shan: Implications for the LGM on the northeastern Tibetan Plateau

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DOI	10.3389/feart.2023.1044818
	Late quaternary glacial history of the La Ji Shan: Implications for the LGM on the northeastern Tibetan Plateau
	Cui, Hang; Mou, Haizhen; Jing, Tao
发表日期	2023
EISSN	2296-6463
卷号	11
英文摘要	Previous studies have suggested that the Bayan Har Shan and Lake Donggi Cona areas on the northeastern Tibetan Plateau were not glaciated during the Last Glacial Maximum (LGM; MIS2). However, the La Ji Shan, which is at a lower elevation than the Bayan Har Shan and Lake Donggi Cona areas but has similar annual precipitation, experienced a glacial event during the LGM. To investigate this discrepancy, factors controlling glacier development in the Bayan Har Shan, Lake Donggi Cona, and La Ji Shan were examined. First, a coupled mass balance and ice flow model was used to reconstruct the LGM climatic conditions in the La Ji Shan, and then the factors controlling glacier development were assessed based on the modeled LGM climatic conditions. With LGM precipitation being 70%-80% of present-day values, the modeled LGM temperature decrease was 3.9 degrees C-4.3 degrees C, which is consistent with other reconstructed LGM climatic conditions on the Tibetan Plateau. A comparison of the topography and climate of the La Ji Shan, Bayan Har Shan and Lake Donggi Cona areas indicates that a lower LGM summit height above the LGM equilibrium line altitude (ELA) and LGM annual precipitation at the LGM ELA are the main reason for the lack of LGM glacial expansion in the Bayan Har Shan and Lake Donggi Cona areas.
关键词	glacial evolution last glaciation model paleoclimate Tibetan Plateau
英文关键词	NUCLIDE PRODUCTION-RATES; EXPOSURE AGES; CLIMATE CONDITIONS; ASIAN MONSOON; DALIJIA SHAN; NE TIBET; ICE CAP; VALLEY; RECONSTRUCTION; MOUNTAINS
WOS研究方向	Geosciences, Multidisciplinary
WOS记录号	WOS:000940446800001
来源期刊	FRONTIERS IN EARTH SCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283871
作者单位	Qinghai Normal University; Qinghai Normal University
推荐引用方式 GB/T 7714	Cui, Hang,Mou, Haizhen,Jing, Tao. Late quaternary glacial history of the La Ji Shan: Implications for the LGM on the northeastern Tibetan Plateau[J],2023,11.
APA	Cui, Hang,Mou, Haizhen,&Jing, Tao.(2023).Late quaternary glacial history of the La Ji Shan: Implications for the LGM on the northeastern Tibetan Plateau.FRONTIERS IN EARTH SCIENCE,11.
MLA	Cui, Hang,et al."Late quaternary glacial history of the La Ji Shan: Implications for the LGM on the northeastern Tibetan Plateau".FRONTIERS IN EARTH SCIENCE 11(2023).