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DOI	10.1002/ppp.1992
	Geomorphology of Gullies at Thomas Lee Inlet, Devon Island, Canadian High Arctic
	Godin, Etienne 1,2; Osinski, Gordon R.1,2,3; Harrison, Tanya N.4; Pontefract, Alexandra 5; Zanetti, Michael 1,2
通讯作者	Godin, Etienne
来源期刊	PERMAFROST AND PERIGLACIAL PROCESSES
ISSN	1045-6740
EISSN	1099-1530
出版年	2019
卷号	30 期号:1 页码:19-34
英文摘要	Slopes in and around Thomas Lee Inlet (Devon Island, Nunavut, Canada) are eroded by means of gullying, yet the driving factors, such as the nature of the substrate and availability of different sources for water, influencing gully morphology remain poorly understood. Here we investigate the factors that contribute to gully formation using a combination of satellite mapping, field observations and statistical analysis of morphological data. In total, 161 gullies were mapped within the 126 km(2) study area. Factors linked to gullies, such as the nature of its substrate and the presence of glaciers, were integrated into a spatial geodatabase. A Factor Analysis of Mixed Data performed on the geodatabase was used to discriminate which factors may influence gully geometry. Our results show that the type of geological formation has a strong impact on gully slope. In addition, supplemental sources of water are often found near alcoves of the steep, longer and mature gullies, and levees often form in their aprons. Immature debris flow-like gullies were dryer and found on short and variable (from steep to gentle) slopes. This detailed study of the rocky and arid Thomas Lee Inlet plateaus and slopes provides the first insight into gullied slopes as a hydrological component connecting upland units to downslope in this area.
英文关键词	Factor Analysis of Mixed Data gullies High Arctic permafrost planetary analogs Thomas Lee Inlet
类型	Article
语种	英语
国家	Canada ; USA
收录类别	SCI-E
WOS记录号	WOS:000456319500002
WOS关键词	THERMAL EROSION ; MARTIAN GULLIES ; BYLOT ISLAND ; ICE ; MARS ; CLASSIFICATION ; EVOLUTION ; DEPOSITS ; RUNOFF ; MODEL
WOS类目	Geography, Physical ; Geology
WOS研究方向	Physical Geography ; Geology
来源机构	Arizona State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217923
作者单位	1.Univ Western Ontario, Dept Earth Sci, London, ON N6A 5B7, Canada; 2.Univ Western Ontario, Ctr Planetary Sci & Explorat, London, ON, Canada; 3.Univ Western Ontario, Dept Phys & Astron, London, ON, Canada; 4.Arizona State Univ, NewSpace Initiat, Tempe, AZ USA; 5.MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA USA
推荐引用方式 GB/T 7714	Godin, Etienne,Osinski, Gordon R.,Harrison, Tanya N.,et al. Geomorphology of Gullies at Thomas Lee Inlet, Devon Island, Canadian High Arctic[J]. Arizona State University,2019,30(1):19-34.
APA	Godin, Etienne,Osinski, Gordon R.,Harrison, Tanya N.,Pontefract, Alexandra,&Zanetti, Michael.(2019).Geomorphology of Gullies at Thomas Lee Inlet, Devon Island, Canadian High Arctic.PERMAFROST AND PERIGLACIAL PROCESSES,30(1),19-34.
MLA	Godin, Etienne,et al."Geomorphology of Gullies at Thomas Lee Inlet, Devon Island, Canadian High Arctic".PERMAFROST AND PERIGLACIAL PROCESSES 30.1(2019):19-34.