Natural Resources Canada

74 datasets found
  • Open Data

    Annual Mean Total Precipitation

    The map shows the annual mean total precipitation. Over much of the continental interior of Canada, precipitation reaches its annual maximum in the summer months and falls as rain. October marks the transition from mainly rain to snowfall across northern Canada.
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JP2
    • ZIP
    • other
  • Open Data

    July Mean Total Precipitation

    The map shows the mean total precipitation in the month of July. Throughout much of the continental interior of Canada, precipitation reaches its annual maximum in the summer months and falls as rain. On the Prairies, the maximum monthly precipitation is usually in June or July, but this shifts...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JP2
    • ZIP
    • other
  • Open Data

    January Mean Total Precipitation

    The map shows the mean total precipitation in the month of January. January precipitation across Canada is mainly in the form of snow. Throughout much of the interior and the north, precipitation amounts are generally less than 20 mm and, in the high Arctic, as little as a few millimetres. The...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JP2
    • ZIP
    • other
  • Open Data

    April Mean Total Precipitation

    The map shows the mean total precipitation in the month of April. April is a transitional month across much of southern Canada, when snow is still possible but rainfall begins to dominate the precipitation regime. Precipitation amounts across the southern interior of Canada are somewhat greater...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JP2
    • ZIP
    • other
  • Open Data

    October Mean Total Precipitation

    The map shows the mean total precipitation in the month of October. October marks the transition from mainly rain to snowfall across northern Canada. Snowfall also occurs across much of the interior of southern Canada but in relatively small amounts that usually melt. October also marks the...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JP2
    • ZIP
    • other
  • 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

    April Mean Daily Minimum Temperatures

    The map shows the mean daily minimum temperatures for April. Minimum temperatures in April are below freezing for most of Canada. Minimum temperatures in April are below freezing for most of Canada. Only extreme southern Ontario, extreme southern Nova Scotia and coastal British Columbia have...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JP2
    • ZIP
    • other
  • Open Data

    April Mean Daily Maximum Temperatures

    The map shows the mean daily maximum temperatures for April. Below-freezing maximum temperatures in April are restricted to northern Canada and the extreme northern portions of Ontario and Quebec adjacent to Hudson Bay. Lengthening days and strengthening sunshine bring about a moderation in...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JP2
    • ZIP
    • other
  • Open Data

    January Mean Daily Minimum Temperatures

    The map shows the mean daily minimum temperatures for January. January marks the depths of winter across Canada and, with the exception of the coastal parts of southern Vancouver Island, below freezing minimum temperatures are the norm. The deep freeze is particularly evident near Baker Lake in...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JP2
    • ZIP
    • other
  • Open Data

    January Mean Daily Maximum Temperatures

    The map shows the mean daily maximum temperatures for January. Weak or no sunshine means there is minimal diurnal variation between the maximum and minimum temperatures in January. The far north remains in an icy grip, with maximum temperatures around -30ºC or colder across parts of Nunavut....
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JP2
    • ZIP
    • other
  • Open Data

    July Mean Daily Minimum Temperatures

    The map shows the mean daily maximum temperatures for July. Maximum temperatures in July are above freezing across all of Canada except for high elevations on Ellesmere Island. Maximum temperatures exceed 25ºC in the valley bottoms of southern British Columbia, across the southern Prairies, in...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JP2
    • ZIP
    • other
  • Open Data

    July Mean Daily Maximum Temperatures

    The map shows the mean daily maximum temperatures for July. Maximum temperatures in July are above freezing across all of Canada except for high elevations on Ellesmere Island. Maximum temperatures exceed 25ºC in the valley bottoms of southern British Columbia, across the southern Prairies, in...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JP2
    • ZIP
    • other
  • Open Data

    October Mean Daily Minimum Temperatures

    The map shows the mean daily minimum temperatures for October. In October, longer nights and a return to below-freezing minimum temperatures is evident across most of Canada except for coastal British Columbia, southern Ontario and Quebec and most of the Atlantic Provinces. Normal minimum...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JP2
    • ZIP
    • other
  • Open Data

    October Mean Daily Maximum Temperatures

    The map shows the mean daily maximum temperatures for October. Much of southern Canada experiences maximum temperatures in October above 10°C, whereas maximum temperatures across most of the northern territories are below zero. Only the southern portions of the Yukon and the Northwest Territories...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JP2
    • ZIP
    • other
  • Open Data

    Ecological Framework

    Fifteen ecozones make up terrestrial Canada, and five make up the marine waters bordering Canada. Canada’s 15 terrestrial ecozones can be subdivided into 53 ecoprovinces, which can be further broken into 194 ecoregions. Ecozones are useful for general national reporting and for placing Canada’s...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JP2
    • ZIP
    • other
  • Open Data

    Terrestrial Ecozones

    Canada has defined a hierarchical classification of ecosystems. At a simple level there are 20 ecozones, fifteen terrestrial and five marine. An ecozone is an area of the earth’s surface that represents a large ecological zone and has characteristic landforms and climate. Each ecozone is...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JP2
    • ZIP
    • other
  • Open Data

    Ecosystem Components - Endemic Plant Diversity

    Endemic plants are those plants found only in Canada. These plants have genetically adapted to these particular environmental conditions. Because these are found nowhere else, Canada has a special obligation to ensure these plants do not become extinct. The map shows the number of endemic plants...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JP2
    • ZIP
    • other
  • Open Data

    Ecosystem Components: Land Cover Diversity

    Ecoregions vary in their make up and complexity. Some are relatively uniform in their composition, structure and processes. Others contain extreme variations in relief, soils, climate, vegetation, and species. This map shows the number of land cover types (up to 29 types are possible) per...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JP2
    • ZIP
    • other