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DOI	10.5194/acp-20-4969-2020
	Linkage between dust cycle and loess of the Last Glacial Maximum in Europe
	Schaffernicht E.J.; Ludwig P.; Shao Y.
发表日期	2020
ISSN	16807316
起始页码	4969
结束页码	4986
卷号	20 期号:8
英文摘要	This article establishes a linkage between the mineral dust cycle and loess deposits during the Last Glacial Maximum (LGM) in Europe. To this aim, we simulate the LGM dust cycle at high resolution using a regional climate-dust model. The model-simulated dust deposition rates are found to be comparable with the mass accumulation rates of the loess deposits determined from more than 70 sites. In contrast to the present-day prevailing westerlies, winds from northeast, east, and southeast (36%) and cyclonic regimes (22%) were found to prevail over central Europe during the LGM. This supports the hypothesis that the recurring east sector winds associated with a high-pressure system over the Eurasian ice sheet (EIS) dominated the dust transport from the EIS margins in eastern and central Europe. The highest dust emission rates in Europe occurred in summer and autumn. Almost all dust was emitted from the zone between the Alps, the Black Sea, and the southern EIS margin. Within this zone, the highest emission rates were located near the southernmost EIS margins corresponding to the present-day German-Polish border region. Coherent with the persistent easterlies, westward-running dust plumes resulted in high deposition rates in western Poland, northern Czechia, the Netherlands, the southern North Sea region, and on the North German Plain including adjacent regions in central Germany. The agreement between the climate model simulations and the mass accumulation rates of the loess deposits corroborates the proposed LGM dust cycle hypothesis for Europe. © 2020 Author(s).
关键词	accumulation rate climate modeling computer simulation dust Last Glacial Maximum loess paleoclimate regional climate Europe
语种	英语
来源机构	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/132080
推荐引用方式 GB/T 7714	Schaffernicht E.J.,Ludwig P.,Shao Y.. Linkage between dust cycle and loess of the Last Glacial Maximum in Europe[J]. Atmospheric Chemistry and Physics,2020,20(8).
APA	Schaffernicht E.J.,Ludwig P.,&Shao Y..(2020).Linkage between dust cycle and loess of the Last Glacial Maximum in Europe.,20(8).
MLA	Schaffernicht E.J.,et al."Linkage between dust cycle and loess of the Last Glacial Maximum in Europe".20.8(2020).