干旱区生态环境知识资源中心(Arid): Slope processes connected with snow patches in semi-arid ice-free areas of James Ross Island, Antarctic Peninsula

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DOI	10.1016/j.geomorph.2020.107479
	Slope processes connected with snow patches in semi-arid ice-free areas of James Ross Island, Antarctic Peninsula
	Knazkova, Michaela; Nyvlt, Daniel; Hrbacek, Filip
通讯作者	Knazkova, M (corresponding author), Dept Geog, Kotlarska 2, Brno 61137, Czech Republic.
来源期刊	GEOMORPHOLOGY
ISSN	0169-555X
EISSN	1872-695X
出版年	2021
卷号	373
英文摘要	In this study, we aim to describe geomorphological processes related to snow patches in the ice-free environment of James Ross Island located in Maritime Antarctica. The area of interest for this study is situated on Cape Lachman and consists of an approximately 1500 m long and 300 m wide oval-shaped depression with two shallow lakes at the bottom. Due to the varied aspect of the slopes, large snow accumulations form in the southern part of the depression, where the slopes exhibit a lee aspect towards the prevailing southwestern wind. Within the semi-arid conditions of James Ross Island, the redistribution of snow by wind and the availability of moisture from the melting snow play a key role in shaping of the landscape. Via repeated UAV surveys, field campaigns and construction of a digital terrain model of the study area, we were able to identify the specific landforms that have been shaped by nival processes, such as winnowing of the fine material and its subsequent transport downslope; and mass wasting, resulting from slumping of the meltwater-saturated active layer. We developed a three-step model of landscape evolution throughout the Holocene, which helps to explain how snow-related processes contribute to landscape shaping within the ice-free environment of James Ross Island. (C) 2020 Elsevier B.V. All rights reserved.
英文关键词	Holocene Antarctica Nivation Landscape modelling
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000597184500013
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/347930
作者单位	[Knazkova, Michaela; Nyvlt, Daniel; Hrbacek, Filip] Masaryk Univ, Dept Geog, Polar Geolab, Brno, Czech Republic
推荐引用方式 GB/T 7714	Knazkova, Michaela,Nyvlt, Daniel,Hrbacek, Filip. Slope processes connected with snow patches in semi-arid ice-free areas of James Ross Island, Antarctic Peninsula[J],2021,373.
APA	Knazkova, Michaela,Nyvlt, Daniel,&Hrbacek, Filip.(2021).Slope processes connected with snow patches in semi-arid ice-free areas of James Ross Island, Antarctic Peninsula.GEOMORPHOLOGY,373.
MLA	Knazkova, Michaela,et al."Slope processes connected with snow patches in semi-arid ice-free areas of James Ross Island, Antarctic Peninsula".GEOMORPHOLOGY 373(2021).