气候变化领域集成服务门户(CCPortal): Dormant dune fields and ameliorative moisture conditions in the West Gobi Desert in East Asia during the Last Interglacial

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DOI	10.1016/j.palaeo.2024.112170
	Dormant dune fields and ameliorative moisture conditions in the West Gobi Desert in East Asia during the Last Interglacial
	Zheng, Junge; Zhang, Deguo; Yang, Xiaoping; Lehmkuhl, Frank; Stauch, Georg
发表日期	2024
ISSN	0031-0182
EISSN	1872-616X
起始页码	643
卷号	643
英文摘要	Arid and semiarid regions are environmentally vulnerable to global warming. Thus, studying their environmental history during warm periods (e.g., the Last Interglacial, LIG) is crucial for understanding their future changes too. The West Gobi Desert is a transitional zone influenced by the westerlies and the East Asian monsoon system. Therefore, the variation in atmospheric circulation profoundly affects its water vapor transport and landscape evolution. Due to the scarcity of continuous records, the moisture transport process remains ambiguous, which limits further research on paleolake evolution and aeolian activity. Here, we combine paleoclimate simulations from the Coupled Model Intercomparison Project 6 (CMIP6)-Paleoclimate Modeling Intercomparison Project 4 (PMIP4) and geological records to clarify the water vapor transport pathways and aeolian activity in the West Gobi Desert during the LIG, compared to the reference period (the piControl). Our results show that increased rainfall and meltwater were possible supplies for surface water during the LIG and were associated with enhanced East Asian summer monsoon and higher surface air temperatures. Concomitantly, weakening aeolian activity and dormant dune fields occurred in the West Gobi Desert, resulting from higher surface moisture content and weaker surface wind regimes associated with the weakening westerlies and East Asian winter monsoon. Notably, the limited weakening of aeolian activity that occurred in the LIG winter and spring was caused by weaker surface wind and deteriorating surface moisture conditions, while the significant dormancy of dune fields in the LIG summer and autumn was initiated by the combined effects of ameliorative surface moisture conditions and lower surface wind speed.
英文关键词	Water vapor transport; Aeolian activity; Paleolake; CMIP6-PMIP4 models; Climate change
语种	英语
WOS研究方向	Physical Geography ; Geology ; Paleontology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:001229048200001
来源期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/299816
作者单位	Zhejiang University; RWTH Aachen University
推荐引用方式 GB/T 7714	Zheng, Junge,Zhang, Deguo,Yang, Xiaoping,et al. Dormant dune fields and ameliorative moisture conditions in the West Gobi Desert in East Asia during the Last Interglacial[J],2024,643.
APA	Zheng, Junge,Zhang, Deguo,Yang, Xiaoping,Lehmkuhl, Frank,&Stauch, Georg.(2024).Dormant dune fields and ameliorative moisture conditions in the West Gobi Desert in East Asia during the Last Interglacial.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,643.
MLA	Zheng, Junge,et al."Dormant dune fields and ameliorative moisture conditions in the West Gobi Desert in East Asia during the Last Interglacial".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 643(2024).