| Title | Ground ice determinations along the Yukon coast using a morphological model |
| |
| Author | Couture, N J ;
Pollard, W H |
| Source | Proceedings of GEOQuébec 2015; 2015 p. 1-6 |
| Image |  |
| Year | 2015 |
| Alt Series | Earth Sciences Sector, Contribution Series 20150343 |
| Meeting | GEOQuébec 2015, 68th Canadian Geotechnical Conference and 7th Canadian Permafrost Conference; Quebec City; CA; September 20-23, 2015 |
| Document | serial |
| Lang. | English |
| Media | paper; on-line; digital |
| Related | This publication is related to Ground ice determinations
along the Yukon coast using a morphological model |
| File format | pdf |
| Province | Yukon; Northern offshore region |
| NTS | 117A/08; 117A/09; 117A/10; 117A/13; 117A/14; 117A/15; 117A/16; 117C/01; 117C/07; 117C/08; 117D/02; 117D/03; 117D/04; 117D/05; 117D/06; 117D/12 |
| Area | Yukon Coast; Beaufort Sea; Komakuk; Kay Point; Herschel Island |
| Lat/Long WENS | -141.0000 -136.2500 69.7500 68.2500 |
| Subjects | surficial geology/geomorphology; marine geology; Nature and Environment; permafrost; ground ice; ground temperatures; freezing ground; coastal environment; coastal studies; coastal erosion; coastal
management; vegetation; terrain management |
| Illustrations | location maps; photographs; diagrams; tables; histograms |
| Program | Climate Change Geoscience Coastal Infrastructure |
| Released | 2015 01 01 |
| Abstract | Permafrost in the Canadian western Arctic contains large amounts of ground ice and a geomorphological model is used to estimate ground ice content. The Yukon coastline was divided into 44 different
terrain units based on geology, coastal morphology, and the presence of different types of ground ice. The overall volume of ground ice within a terrain unit was assessed based on the stratigraphic relationships between different ice types. Ice
volumes in the various terrain units ranged from 0 to 74% and were a function of surficial material. Across the entire study area, ground ice accounts for 46% by volume of all earth materials. Pore ice and thin segregated lenses account for 76% of
the total ground ice, massive ice accounts for 21%, and wedge ice for 3%. |
| Summary | (Plain Language Summary, not published)
Permafrost in the Canadian western Arctic contains large amounts of ground ice and the volume of ice is of interest, since it is a major contributing
factor in the response of the permafrost system to environmental changes or to development. A geomorphological model was used to estimate ground ice content in different terrain units along the Yukon coast. The overall volume of ground ice is
assessed based on the geometric relationships between various types of ground ice. The results show that ground ice makes up 0 to 74% of the coastal bluffs by volume and varies depending on the type of terrain unit. |
| GEOSCAN ID | 297501 |
|
|