Natural Resources Canada

69 datasets found
  • Open Data

    Isotherms for Summer and Year, Rainfall, Snowfall and Isobars

    Contained within the 2nd Edition (1915) of the Atlas of Canada is a plate comprised of 11 maps. The two maps at the top of the plate show isothermal lines for summer and for the entire year, with temperature units measured in Fahrenheit. The annual isothermal lines follow an Easterly and Westerly...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Open Data

    Mean Annual Total Precipitation

    Contained within the 3rd Edition (1957) of the Atlas of Canada is a plate that shows two maps for the annual total precipitation. Annual precipitation is defined as the sum of rainfall and the assumed water equivalent of snowfall for a given year. A specific gravity of 0.1 for freshly fallen snow...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Open Data

    Precipitation Days and Precipitation Variability

    Contained within the 3rd Edition (1957) of the Atlas of Canada is a plate with three maps that show the mean annual number of days with measurable precipitation, the mean annual number of days with measurable snowfall, and the variability of annual precipitation. A day with sufficient measurable...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Open Data

    Snow Cover

    Contained within the 3rd Edition (1957) of the Atlas of Canada is a map that shows the snow cover data, referring primarily to the presence and total depth of a snow cover on the surface of the earth, across Canada. This is in contrast to data characteristics of snow cover depth, which increases...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Open Data

    Typical Weather Situations

    Contained within the 3rd Edition (1957) of the Atlas of Canada is a map that shows the typical weather situations by means of four surface weather maps: for February 18th, circa 1954; April 19th, circa 1955; July 3rd, circa 1955; and October 12th, circa 1954. All maps are based on data of 1:30...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Open Data

    Average Maximum Snow Depth

    This map shows the average maximum snow depth in centimetres computed over 18 winter seasons (1979 to 1997). Over southern Canada this usually occurs in January or February, while the time of maximum accumulation occurs much later in mountain areas and in the Arctic. The main features of the map...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JP2
    • ZIP
    • other
  • Open Data

    Median End Date of Continuous Snow Cover

    This map shows the median date of snow-cover loss (defined as the last date with 14 consecutive days of snow cover greater than 2 centimetres in depth) computed over 18 winter seasons (1979 to 1997). In areas with permanent or semipermanent snow cover (for example, Arctic ice caps) or in areas...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JP2
    • ZIP
    • other
  • Open Data

    Median Start Date of Continuous Snow Cover

    This map shows the median date of snow-cover onset (defined as the first date with 14 consecutive days of snow cover greater than 2 centimetres in depth) computed over 18 winter seasons (1979 to 1997). In areas with permanent or semipermanent snow cover (for example, Arctic ice caps) or in areas...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JP2
    • ZIP
    • other
  • Open Data

    Snowfall (Nunavut)

    Nunavut lies in the Arctic, where cold temperatures mean that snow can fall at anytime in the year. Typically the ground is snow covered from September until June. Most of Nunavut has a dry Arctic climate receiving less than 200 centimetres of snow annually.
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JP2
    • ZIP
    • other
  • Open Data

    Snow Depth

    Over southern Canada maximum snow depth usually occurs in January or February, while the time of maximum accumulation occurs much later in mountain areas and in the Arctic. The main features of the map are the pronounced maximum in snow accumulation over the western Cordillera (British Columbia...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • other
    • PDF
  • Open Data

    Glacial Geology

    Contained within the 4th Edition (1974) of the Atlas of Canada is a map that shows locations of currently existing glaciers as well as historical glacial information. The resulting effects that glaciers have had on landscape are also shown on this map.
    Organization:
    Natural Resources Canada
    Resource Formats:
    • PDF
    • JPG
  • Open Data

    Frost

    Contained within the 4th Edition (1974) of the Atlas of Canada is a collection of five maps. Two maps show, for fertile regions, the average date of the last frost in spring and the average date of the first frost in autumn. The three remaining maps show the median depth of snow cover at a scale...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • PDF
    • JPG
  • Open Data

    Snow Cover

    Contained within the 4th Edition (1974) of the Atlas of Canada is a collection of six maps. Each map shows the median depth of snow for December 31st, January 31st, February 28th, March 31st, April 30th and May 31st respectively.
    Organization:
    Natural Resources Canada
    Resource Formats:
    • PDF
    • JPG
  • Open Data

    Average Monthly Precipitation

    Contained within the 4th Edition (1974) of the Atlas of Canada is a collection of six maps. Each map shows the average monthly precipitation for April, May, June, July, August and September.
    Organization:
    Natural Resources Canada
    Resource Formats:
    • PDF
    • JPG
  • Open Data

    Snowfall

    Contained within the 5th Edition (1978 to 1995) of the National Atlas of Canada is a plate with seven maps. The first map shows mean annual snowfall in Canada. Four additional maps show median snow depth for four separate months. The final two maps show snow cover and maximum snow depth.
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Open Data

    Penny Ice Cap

    "The Glacier Atlas of Canada is a collection of maps produced as part of the Canadian Glacier Inventory Project. This project was initiated as part of Canada's contribution to the International Hydrological Decade (1965 to 1974). Although publication of this map series was suspended in the...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Open Data

    Oldman River

    "The Glacier Atlas of Canada is a collection of maps produced as part of the Canadian Glacier Inventory Project. This project was initiated as part of Canada's contribution to the International Hydrological Decade (1965 to 1974). Although publication of this map series was suspended in the...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Open Data

    Colin Archer Peninsula

    "The Glacier Atlas of Canada is a collection of maps produced as part of the Canadian Glacier Inventory Project. This project was initiated as part of Canada's contribution to the International Hydrological Decade (1965 to 1974). Although publication of this map series was suspended in the...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Open Data

    Devon Ice Cap - North

    "The Glacier Atlas of Canada is a collection of maps produced as part of the Canadian Glacier Inventory Project. This project was initiated as part of Canada's contribution to the International Hydrological Decade (1965 to 1974). Although publication of this map series was suspended in the...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Open Data

    McBeth Ford

    "The Glacier Atlas of Canada is a collection of maps produced as part of the Canadian Glacier Inventory Project. This project was initiated as part of Canada's contribution to the International Hydrological Decade (1965 to 1974). Although publication of this map series was suspended in the...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF