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Climatic and geomorphic factors affecting contemporary (1950-2004) activity of retrogressive thaw slumps on the Aklavik Plateau, Richardson Mountains, NWT, Canada

Dates

Year
2010

Citation

Lacelle, Denis, Bjornson, Jean, and Lauriol, Bernard, 2010, Climatic and geomorphic factors affecting contemporary (1950-2004) activity of retrogressive thaw slumps on the Aklavik Plateau, Richardson Mountains, NWT, Canada: Permafrost and Periglacial Processes, v. 21, no. 1, p. 1-15.

Summary

The climatic and geomorphic factors affecting retrogressive thaw slump initiation and activity on the Aklavik Plateau (Richardson Mountains, NWT) were examined using historical air photographs over a 54-year period (1950 to 2004). In this region, thaw slumps include a near-vertical headwall, a floor of low gradient (2?10°) and a steeply sloping evacuation channel (15?25°) that connects the floor of the thaw slumps to Willow River located 60?150?m below. All thaw slumps on the Aklavik Plateau are located within the glacial limit of the Laurentide Ice Sheet and the majority developed on the western side of the valley on gently sloping terrain. Aerial photographic analysis showed an increase in thaw slump initiation from 0.35 new thaw [...]

Contacts

Tags

Provenance

Data source
File Processing
File Process
Type
End Note
Reference Item
NWBLCC Test to validate 3364 records in xml format
Reference File
NWBLCC-20160527b.xml

Additional Information

Identifiers

Type Scheme Key
DOI http://sciencebase.gov/vocab/identifierScheme 10.1002/ppp.666
ISSN http://sciencebase.gov/vocab/identifierScheme 1099-1530

Citation Extension

journalPermafrost and Periglacial Processes
parts
typeNotes
value9065
typePages
value1-15
typeVolume
value21
typeNumber
value1
citationTypeJournal Article

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