| Title | The ground thermal regime across the Mackenzie Valley corridor, Northwest Territories Canada |
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| Author | Bonnaventure, P P; Smith, S L ; Riseborough, D W; Duchesne, C; Ednie,
M |
| Source | 2015, 8 pages |
| Image |  |
| Year | 2015 |
| Alt Series | Earth Sciences Sector, Contribution Series 20150116 |
| Publisher | Canadian Geotechnical Society |
| Meeting | GeoQuebec 2015, 7th Canadian Permafrost Conference and 68th Canadian Geotechnical Conference; Québec; CA; September 20-23, 2015 |
| Document | book |
| Lang. | English |
| Media | paper; on-line; digital |
| File format | pdf |
| Province | Northwest Territories |
| NTS | 85; 86; 87B; 87C; 87F; 87G; 94I; 94J; 94K; 94L; 94M; 94N; 94O; 94P; 95; 96; 97; 105; 106; 107 |
| Area | Mackenzie Valley |
| Lat/Long WENS | -140.0000 -112.0000 72.0000 57.5000 |
| Subjects | environmental geology; regional geology; Nature and Environment; freezing ground; ground temperatures; permafrost; thermal analyses; groundwater; groundwater temperatures |
| Illustrations | location maps; graphs; equations |
| Program | Climate Change Geoscience Land-based Infrastructure |
| Abstract | Ground thermal data generated from an enhanced monitoring network has been summarized for the Mackenzie Valley corridor, Northwest Territories. The snapshot developed for 2007-09 provided a baseline
against which future change in ground thermal conditions can be measured as well as providing essential information to support land use planning decisions in the region. Comparison of ground temperatures measured during 2012-14 to the baseline
indicates some recent warming of permafrost has occurred with greater changes in ground temperature occurring in colder permafrost in the northern portion of the corridor. |
| Summary | (Plain Language Summary, not published)
A summary of the features of the ground thermal regime in the Mackenzie Valley corridor is provided. Data collected from over 70 permafrost monitoring
sites has been utilized to develop a baseline of permafrost thermal state for 2007-09. Analysis of recent data indicates that current ground temperatures at many sites are higher than the baseline values. Essential information is provided for a
major transportation corridor on permafrost thermal state and the sensitivity of permafrost to climate change. |
| GEOSCAN ID | 296701 |
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