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TitlePermafrost / Pergélisol
DownloadDownloads
AuthorCanada Surveys and Mapping Branch
SourceHydrological Atlas of Canada 32, 1978, 1 sheet
Year1978
PublisherCanada Surveys and Mapping Branch
Documentserial
Lang.English; French
Maps1 map
Map Info.hydrographic, 1:10,000,000
ProjectionLambert Conformal Conic Projection
Mediapaper; on-line; digital
File formatpdf; jpg
ProvinceBritish Columbia; Alberta; Saskatchewan; Manitoba; Ontario; Quebec; New Brunswick; Nova Scotia; Prince Edward Island; Newfoundland and Labrador; Northwest Territories; Yukon; Nunavut
NTS1; 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
Subjectshydrogeology; environmental geology; hydrology; permafrost
Abstract(unpublished)
The map shows the location of the continuous permafrost zone and the discontinuous permafrost zone including areas of wide spread permafrost, areas of scattered permafrost and permafrost areas in the Cordillera. The map also indicates for six locations (Inuvik, Yellowknife, Thompson, Resolute, Rankin Inlet and Schefferville) the thickness of permafrost in metres and the ground temperature. Permafrost is a term used to describe the thermal condition of earth materials, such as soil and rock, when their temperature remains below 0 degrees Celsius continuously for more than 1 year. One-half of Canada's land surface is underlain by permafrost. The permafrost region is divided into two zones: continuous in the north and discontinuous in the south. In the continuous zone, permafrost exists everywhere beneath the land surface and varies in thickness from about 100 metres at the southern limit to 1000 metres in the Far North. The active layer usually extends down to the permafrost. In the discontinuous zone
GEOSCAN ID295298