干旱区生态环境知识资源中心(Arid): High-latitude dust deposition in snow on the glaciers of James Ross Island, Antarctica

Arid

DOI	10.1002/esp.4831
	High-latitude dust deposition in snow on the glaciers of James Ross Island, Antarctica
	Kavan, Jan 1; Nyvlt, Daniel 1; Laska, Kamil 1; Engel, Zbynek 2; Knazkova, Michaela 1
通讯作者	Kavan, Jan
来源期刊	EARTH SURFACE PROCESSES AND LANDFORMS
ISSN	0197-9337
EISSN	1096-9837
出版年	2020
卷号	45 期号:7 页码:1569-1578
英文摘要	High-latitude dust (HLD) depositions on four glaciers of James Ross Island (the Ulu Peninsula) were analysed. The deposition rate on the selected glaciers varies from 11.8 to 64.0 g m(-2), which is one order of magnitude higher compared to the glaciers in Antarctica or elsewhere in the world. A strong negative relationship between the sediment amount and altitude of a sampling site was found. This is most likely caused by the higher availability of aeolian material in the atmospheric boundary layer. General southerly and south-westerly wind directions over the Ulu Peninsula - with exceptions based on local terrain configuration - help to explain the significantly lower level of sediment deposition on San Jose Glacier and the high level on Triangular Glacier. X-ray fluorescence (XRF) spectrophotometry was used to estimate the relative proportions of the main and trace (lithophile) elements in the sediment samples. Both the sediment amount and the XRF results are analysed in a depth profile at each locality and compared among the glaciers, suggesting long-range transport of fine mineral material from outside James Ross Island. The distribution of aeolian sediment among the glaciers corresponds well with the prevailing wind direction on the Ulu Peninsula. (c) 2020 John Wiley & Sons, Ltd.
英文关键词	glaciers high-latitude dust deposition snow pit James Ross Island Antarctic Peninsula long-range transport
类型	Article
语种	英语
国家	Czech Republic
收录类别	SCI-E
WOS记录号	WOS:000541225100007
WOS关键词	TAYLOR VALLEY ; PATAGONIA DESERT ; EOLIAN SEDIMENT ; TRACE-ELEMENTS ; VICTORIA-LAND ; ICE CAP ; TRANSPORT ; AEROSOL ; CONTEMPORARY ; PENINSULA
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/2XILL650/319484
作者单位	1.Masaryk Univ, Fac Sci, Dept Geog, Polar Geolab, Kotlarska 2, CZ-61137 Brno, Czech Republic; 2.Charles Univ Prague, Fac Sci, Dept Phys Geog & Geoecol, Albertov 6, CZ-12842 Prague, Czech Republic
推荐引用方式 GB/T 7714	Kavan, Jan,Nyvlt, Daniel,Laska, Kamil,et al. High-latitude dust deposition in snow on the glaciers of James Ross Island, Antarctica[J],2020,45(7):1569-1578.
APA	Kavan, Jan,Nyvlt, Daniel,Laska, Kamil,Engel, Zbynek,&Knazkova, Michaela.(2020).High-latitude dust deposition in snow on the glaciers of James Ross Island, Antarctica.EARTH SURFACE PROCESSES AND LANDFORMS,45(7),1569-1578.
MLA	Kavan, Jan,et al."High-latitude dust deposition in snow on the glaciers of James Ross Island, Antarctica".EARTH SURFACE PROCESSES AND LANDFORMS 45.7(2020):1569-1578.