| Title | The thermal state of permafrost in Canada - results from the International Polar Year |
| Author | Smith, S L; Lewkowicz, A G; Burn, C R; Allard, M; Throop, J |
| Source | Geo2010, proceedings of the 63rd Annual Canadian Geotechnical Conference and the 6th Canadian Permafrost Conference; 2010 p. 1214-1221 |
| Year | 2010 |
| Alt Series | Earth Sciences Sector, Contribution Series 20100056 |
| Meeting | 63rd Canadian Geotechnical Conference and the 6th Canadian Permafrost Conference; Calgary; CA; September 12-16, 2010 |
| Document | book |
| Lang. | English |
| Media | paper |
| Related | This publication is contained in Wang, X; Zhang, Y; Fraser,
R; Chen, W; (2010). Evaluating the major controls on permafrost distribution in Ivvavik National Park based on process-based modelling, Geo2010, proceedings of the 63rd Annual Canadian Geotechnical Conference and the 6th Canadian Permafrost
Conference, proceedings |
| Province | British Columbia; Alberta; Saskatchewan; Manitoba; Ontario; Quebec; New Brunswick; Nova Scotia; Prince Edward Island; Newfoundland and Labrador; Northwest Territories; Yukon; Nunavut |
| NTS | 1; 2; 3; 10; 11; 12; 13; 14; 15; 16; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 30; 31; 32; 33; 34; 35; 36; 37; 38; 39; 40; 41; 42; 43; 44; 45; 46; 47; 48; 49; 52; 53; 54; 55; 56; 57; 58; 59; 62; 63; 64; 65;
66; 67; 68; 69; 72; 73; 74; 75; 76; 77; 78; 79; 82; 83; 84; 85; 86; 87; 88; 89; 92; 93; 94; 95; 96; 97; 98; 99; 102; 103; 104; 105; 106; 107; 114O; 114P; 115; 116; 117; 120; 340; 560 |
| Lat/Long WENS | -141.0000 -50.0000 90.0000 41.7500 |
| Subjects | surficial geology/geomorphology; environmental geology; Nature and Environment; permafrost; freezing ground; ground ice; ground temperatures; climate, arctic |
| Illustrations | location maps; graphs; plots |
| Program | Climate Change Geoscience, Earth Science for National Scale Characterization of Climate Change Impacts on Canada's Landmass |
| Abstract | A snapshot of permafrost thermal state in northern Canada during the International Polar Year was developed with ground temperature measurements from about 170 boreholes. The measurements span a wide
range of ecoclimate and geological conditions and are at various elevations. Ground temperatures within the discontinuous permafrost zone are generally above -2°C and range to as low as -15°C in the continuous zone. Permafrost temperatures have
generally increased across northern Canada for the past several decades, with greater warming rates occurring north of tree line. Consequently the spatial diversity of permafrost thermal conditions is decreasing over time. |
| GEOSCAN ID | 285466 |
|
|