| Title | Relationship of ground temperatures to air temperatures in forests |
| Download | Download (whole publication) |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Taylor, A E |
| Source | The physical environment of the Mackenzie Valley, Northwest Territories: a base line for the assessment of environmental change; by Dyke, L D (ed.); Brooks, G R (ed.); Geological Survey of Canada, Bulletin 547, 2000 p. 111-117; 1 CD-ROM, https://doi.org/10.4095/211921  Open Access |
| Links | Download entire publication
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| Links | Téléchargement de la publication au complet
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| Year | 2000 |
| Publisher | Natural Resources Canada |
| Document | serial |
| Lang. | English |
| Media | paper; CD-ROM; digital; on-line |
| Related | This publication is contained in The physical environment of
the Mackenzie Valley, Northwest Territories: a base line for the assessment of environmental change |
| File format | bmp; pdf (Adobe Acrobat Reader v.6.0 is included / est fourni); txt; pdf |
| Province | Northwest Territories |
| NTS | 85D; 85E; 95A; 95B; 95G; 95H; 95I; 95J; 95K; 95N; 95O; 96C; 96D; 96E; 96F; 106G; 106H; 106I; 106J; 106K; 106L; 106M; 106N; 106O; 106P; 107B; 107C |
| Area | Mackenzie Valley |
| Lat/Long WENS | -136.0000 -118.0000 70.0000 60.0000 |
| Subjects | sedimentology; surficial geology/geomorphology; climatic fluctuations; ground ice; temperature; ground temperatures; thermal regimes; permafrost; snow; vegetation; Forests; Quaternary |
| Illustrations | sketch maps; cross-plots; graphs |
| Released | 2000 12 01 |
| Abstract | Ground temperatures differ from air temperatures because of effects of vegetation and humus, other site characteristics, and snow cover. For engineering work, ground surface temperatures may be
estimated from the more readily available air temperatures through the use of a single parameter, the n-factor, to represent these effects. In the Mackenzie valley, n-factors have been calculated from measurements of air and ground temperatures at 27
diverse, natural sites. Generally, the n-factor for the thawing (spring-summer) season is higher in more open areas than in shady forests with thick moss. At a particular site, the n-factor for the freezing (fall-winter) season is usually lower than
the corresponding n-factor for the thaw season, because of the reduced impact of air temperatures and solar radiation on the ground due to snow cover. One application of n-factors is the calculation of the depth of soil that thaws each year, called
the active layer.
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| GEOSCAN ID | 211921 |
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