| Titre | Permafrost and environmental conditions at stream crossing sites in the northern Mackenzie Corridor, Northwest Territories |
| Télécharger | Téléchargements |
| Auteur | Stevens, C W; Palmer, M; Wolfe, S A; Kokelj, S; Smith, S L |
| Source | Commission géologique du Canada, Dossier public 6976, 2011, 65 pages; 1 CD-ROM, https://doi.org/10.4095/289554 (Accès ouvert) |
| Année | 2011 |
| Séries alt. | Northwest Territories Geoscience Office, NWT Open Report 2011-12 |
| Éditeur | Ressources naturelles Canada |
| Document | dossier public |
| Lang. | anglais |
| DOI | https://doi.org/10.4095/289554 |
| Media | CD-ROM; numérique; en ligne |
| Liens | readme
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| Formats | pdf; xls; lyr; rtf |
| Province | Territoires du Nord-Ouest |
| SNRC | 107B; 107C |
| Lat/Long OENS | -135.0000 -132.7500 69.3333 68.3333 |
| Sujets | pergélisol; glace fossile; congélation du sol; températures au sol; végétation; cours d'eaux; température de l'eau; collectes des données; trous de mine; analyses thermiques; géologie des dépôts
meubles/géomorphologie; géologie de l'ingénieur; Nature et environnement; Quaternaire; Cénozoïque |
| Illustrations | location maps; tables; photographs; aerial photographs; plots; graphs; digital elevation models |
| Programme | Géosciences de changements climatiques, Gestionaire de programme - sciences de changements climatiques |
| Diffusé | 2011 11 29 |
| Résumé | (disponible en anglais seulement)
Aboriginal 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. |
| GEOSCAN ID | 289554 |
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