| Title | Dates of formation and loss of snow cover / Date d'apparition et de disparition de la couverture neigeuse |
| Download | Downloads |
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| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Canada Surveys and Mapping Branch |
| Source | Hydrological Atlas of Canada 10, 1978, 1 sheet, https://doi.org/10.4095/295301  Open Access |
| Year | 1978 |
| Publisher | Canada Surveys and Mapping Branch |
| Document | serial |
| Lang. | English; French |
| Maps | 1 map |
| Map Info. | hydrographic, 1:10,000,000 |
| Projection | Lambert Conformal Conic Projection |
| Media | paper; on-line; digital |
| File format | pdf; jpg |
| Province | 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 | hydrogeology; environmental geology; hydrology; precipitation; climate |
| Released | 1978 01 01 |
| Abstract | (unpublished)
The map shows isolines on four different dates: 1) the day of the year when there are less than or equal to 2.5 centimetres of snow that occurs and remain absent for 7 or more
days; 2) the standard deviation of the mean date of snow cover loss; 3) the day of year when greater than or equal to 2.5 centimetres of snow occur and remain for more than 7 days; and 4) the standard deviation of the mean date of snow cover
formation. The beginning and end of the winter season in Canada is usually identified with the formation and disappearance of snow cover in autumn and spring respectively. The duration of snow cover varies considerably from year to year in the
southern fringes of the country and adjacent to the east and west coasts. However, even in northern continental areas early and late snowfalls which leave an ephemeral snow cover are common. The beginning and end of the Canadian snow season is the
earliest and latest dates when 2.5 centimetres or more snow was measured. However, this definition is di |
| GEOSCAN ID | 295301 |
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