| Title | Ground ice map of Canada |
| Download | Downloads |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | O'Neill, H B ;
Wolfe, S A; Duchesne, C |
| Source | Geological Survey of Canada, Open File 8713, 2020, 7 pages (1 sheet), https://doi.org/10.4095/326885  Open Access |
| Links | Erratum
|
| Image |  |
| Image |  |
| Year | 2020 |
| Publisher | Natural Resources Canada |
| Edition | version 1 |
| Document | open file |
| Lang. | English |
| Maps | 1 map |
| Map Info. | surficial geology, ground ice |
| Media | on-line; digital |
| Related | This publication is superceded by Ground ice map of Canada
|
| Related | This publication is related to the following
publications |
| File format | readme
|
| File format | pdf; rtf; dbf; Geotiff; shp; svg; png |
| Province | Canada; British Columbia; Alberta; Saskatchewan; Manitoba; Ontario; Quebec; New Brunswick; Nova Scotia; Prince Edward Island; Newfoundland and Labrador; Northwest Territories; Yukon; Nunavut;
Canada |
| 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; Science and Technology; permafrost; ground ice; salinity; cartography; Geographic data; Geographic information
systems |
| Illustrations | schematic representations; tables; geoscientific sketch maps |
| Program | Climate Change
Geoscience Permafrost |
| Released | 2020 08 28; 2020 10 06 |
| Abstract | This Open File presents new national-scale mapping of ground ice conditions in Canada. The mapping depicts a first-order estimate of the combined volumetric percentage of excess ice in the top 5 m of
permafrost from segregated, wedge, and relict ice. The estimates for the three ice types are based on modelling by O'Neill et al. (2019) (https://doi.org/10.5194/tc-13-753-2019), and informed by available published values of ground ice content and
expert knowledge. The mapping offers an improved depiction of ground ice in Canada at a broad scale, incorporating current knowledge on the associations between geological and environmental conditions and ground ice type and abundance. It provides a
foundation for hypothesis testing related to broad-scale controls on ground ice formation, preservation, and melt. Additional compilation of quantitative field data on ground ice, and improvements to national-scale surficial geology mapping will
allow further assessment and refinement of the representation of ground ice in Canada. Continued research will focus on improving the lateral and vertical representation of ground ice required for incorporation into Earth system models and
decision-making. Spatial data files of the mapping are available as downloads with this Open File. |
| Summary | (Plain Language Summary, not published)
This Open File presents new national-scale mapping of ground ice conditions in Canada. The mapping depicts a first-order estimate of the combined
volumetric percentage of excess ice in the top 5 m of permafrost from segregated, wedge, and relict ice. The estimates for the three ice types are based on modelling by O'Neill et al. (2019) (https://doi.org/10.5194/tc-13-753-2019), and informed by
available published values of ground ice content and expert knowledge. The mapping offers an improved depiction of ground ice in Canada at a broad scale, incorporating current knowledge on the associations between geological and environmental
conditions and ground ice type and abundance. It provides a foundation for hypothesis testing related to broad-scale controls on ground ice formation, preservation, and melt. Additional compilation of quantitative field data on ground ice, and
improvements to national-scale surficial geology mapping will allow further assessment and refinement of the representation of ground ice in Canada. Continued research will focus on improving the lateral and vertical representation of ground ice
required for incorporation into Earth system models and decision-making. Spatial data files of the mapping are available as downloads with this Open File. |
| GEOSCAN ID | 326885 |
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