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TitlePermafrost and environmental conditions at stream crossing sites in the northern Mackenzie Corridor, Northwest Territories
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorStevens, C W; Palmer, M; Wolfe, S AORCID logo; Kokelj, S; Smith, S LORCID logo
SourceGeological Survey of Canada, Open File 6976, 2011, 65 pages; 1 CD-ROM, Open Access logo Open Access
Alt SeriesNorthwest Territories Geoscience Office, NWT Open Report 2011-12
PublisherNatural Resources Canada
Documentopen file
MediaCD-ROM; digital; on-line
File formatreadme
File formatpdf; xls; lyr; rtf
ProvinceNorthwest Territories
NTS107B; 107C
AreaMackenzie Valley; Mackenzie River; Inuvik; Outer Delta; Jimmy Creek; Holmes Creek; Yaya Creek
Lat/Long WENS-135.0000 -132.7500 69.3333 68.3333
Subjectssurficial geology/geomorphology; engineering geology; Nature and Environment; permafrost; ground ice; freezing ground; ground temperatures; vegetation; streams; water temperature; data collections; boreholes; thermal analyses; Quaternary; Cenozoic
Illustrationslocation maps; tables; photographs; aerial photographs; plots; graphs; digital elevation models
ProgramClimate Change Geoscience
Released2011 11 29
AbstractAboriginal Affairs and Northern Development Canada (AANDC) and the Geological Survey of Canada established ground temperature monitoring sites at three stream crossings along the northern Mackenzie Corridor in order to examine the impact of local environmental conditions on permafrost. Ground temperatures were measured between August of 2009 and August of 2010 at hilltop, north and south facing slopes and valley bottom sites. Water and ground temperatures beneath the stream were also measured to provide information on the thermal influence of tundra streams on permafrost. Surface layer measurements consisting of vegetation height, active layer thaw depth and snow depth were acquired along cross valley transects. In addition, ground penetrating radar surveys were conducted to determine winter stream conditions at each site. This dataset improves the characterization of permafrost and environmental conditions at stream crossing sites where significant geotechnical challenges exist and provides useful baseline information necessary for the planning, design and regulation of infrastructure along the potential development corridor.

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