| Title | Evaluating the major controls on permafrost distribution in Ivvavik National Park based on process-based modelling |
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| Author | Wang, X; Zhang, Y ; Fraser, R; Chen, W |
| Source | Geo2010, proceedings of the 63rd Annual Canadian Geotechnical Conference and the 6th Canadian Permafrost Conference, proceedings; 2010 p. 1235-1241  Open Access |
| Links | Online - En ligne (PDF, 308 KB)
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| Image |  |
| Year | 2010 |
| Alt Series | Earth Sciences Sector, Contribution Series 20100099 |
| Meeting | Geo2010: 63rd Canadian Geotechnical Conference and the 6th Canadian Permafrost Conference; Calgary; CA; September 12-16, 2010 |
| Document | Web site |
| Lang. | English |
| Media | on-line; digital |
| Related | This publication is related to Evaluating the major controls
on permafrost distribution in Ivvavik National Park based on process-based modelling |
| File format | pdf (Adobe® Reader®) |
| Province | Yukon |
| NTS | 117A/12; 117A/13; 117A/14; 117B/09; 117B/16; 117C/01; 117C/08; 117C/09; 117D/03; 117D/04; 117D/05 |
| Area | Ivvavik National Park; Firth River |
| Lat/Long WENS | -141.0000 -138.0000 69.7500 68.5000 |
| Subjects | surficial geology/geomorphology; Nature and Environment; Science and Technology; permafrost; freezing ground; ground ice; ground temperatures; vegetation; modelling |
| Illustrations | location maps; histograms; tables; graphs |
| Program | Climate Change Geoscience Climate Change Impacts and Adaptation for Key Economic and Natural Environment Sectors |
| Released | 2010 09 01 |
| Abstract | The permafrost status at some representative sites in three typical land types (as mountain tops, coastal plains, and river valleys) in Ivvavik National Park was evaluated using a process-based model.
The results showed that ground conditions were the most important factor controlling the Active Layer Thickness (ALT). ALT in rocky or gravel ground was deeper (80 - 220 cm), whereas peaty or clay soil made ALT shallower (25 - 50 cm deep) in the
park. Active-layer is usually deeper in mountain sites due to the rocky ground conditions. Air temperature is another significant factor affecting both ALT and permafrost thickness. ALT has become significantly deeper since the mid 1980s
corresponding to the climate warming. |
| GEOSCAN ID | 287421 |
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