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DOI	10.1016/j.quascirev.2019.01.017
	Sand drift events and surface winds in south-central Sweden: From the deglaciation to the present
	Bernhardson M.; Alexanderson H.; Björck S.; Adolphi F.
发表日期	2019
ISSN	0277-3791
起始页码	13
结束页码	22
卷号	209
英文摘要	During the transition from the last glacial into the Holocene interglacial, the atmospheric circulation in the North Atlantic area changed from a glacial mode, influenced by the presence of large ice sheets, into a system more similar to that of the present day. This change had implications for wind, temperature and precipitation patterns that can be traced in geological archives. Here, we focus on reconstructing past wind directions over southern Scandinavia, as inferred from the net sediment transport direction of inland dunes in south-central Sweden. We analysed single dunes and dune fields along a 540-km-long S-N transect with LiDAR (Light detection and ranging) derived DEMs (digital elevation models) to determine their geomorphological type and the directional mode of the wind that led to their formation. Luminescence ages of sand drift and dune formation were compiled from previous studies, allowing us to build a chronology of sand drift after the deglaciation of south-central Sweden. The majority of the dunes appear to have been formed by westerly or northwesterly winds and stabilised ∼10.5–9.0 ka. Although this is rather close in time to the local deglaciation for the northern sites, it is long after the disappearance of ice from the more southern sites. The coeval dune stabilisation over such a large geographical area suggests that regional environmental conditions played an important role. It is likely that an unstable climate in conjunction with low groundwater tables during the early Holocene locally delayed vegetation from stabilising the dunes. © 2019
英文关键词	Aeolian; Geomorphology; GIS; Holocene; Luminescence dating; Palaeoclimatology; Remote sensing; Sand drift; Sand dunes; Scandinavia; Sweden
语种	英语
scopus关键词	Climatology; Geographic information systems; Geomorphology; Glacial geology; Groundwater; Lithium compounds; Luminescence; Optical radar; Remote sensing; Sediment transport; Aeolian; Holocenes; Luminescence dating; Palaeoclimatology; Sand drift; Sand dunes; Scandinavia; Sweden; Sand; atmospheric circulation; deglaciation; digital elevation model; eolian process; geomorphology; GIS; Holocene; ice sheet; Last Glacial; lidar; luminescence dating; paleoclimate; remote sensing; sediment transport; wind velocity; Atlantic Ocean; Atlantic Ocean (North); Scandinavia; Sweden
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/151997
作者单位	Department of Geology, Lund University, Sölvegatan 12, Lund, 223 62, Sweden; University of Bern, Physics Institute, Climate and Environmental Physics, Oeschger Centre for Climate Change Research, Sidlerstrasse 5, Bern, CH-3012, Switzerland
推荐引用方式 GB/T 7714	Bernhardson M.,Alexanderson H.,Björck S.,et al. Sand drift events and surface winds in south-central Sweden: From the deglaciation to the present[J],2019,209.
APA	Bernhardson M.,Alexanderson H.,Björck S.,&Adolphi F..(2019).Sand drift events and surface winds in south-central Sweden: From the deglaciation to the present.Quaternary Science Reviews,209.
MLA	Bernhardson M.,et al."Sand drift events and surface winds in south-central Sweden: From the deglaciation to the present".Quaternary Science Reviews 209(2019).