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14 records found
  • Federal

    Current Water Levels, 2008

    The map shows 3172 hydrometric stations, 1491 active and 1681 inactive, located on rivers and lakes across the country. All the stations on the map are situated in a drainage area of 200 square kilometres or more. For 1200 stations shown on the map, surface water level measurements are recorded...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JP2
    • ZIP
    • other
  • Federal

    The hydrologic cycle

    Hydrology is the science concerned with the occurrence and distribution of water on and under the earth. Meteorology is the science dealing with the atmosphere and the movement of water, both as vapour and as liquid, in the air. Both sciences are concerned with the hydrologic cycle - the...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Federal

    Telephones Ontario, Quebec, Manitoba, Saskatchewan, Alberta, British Columbia...

    Contained within the 1st Edition (1906) of the Atlas of Canada is a plate that shows five maps. The maps show the telephone network for Ontario, Quebec, Manitoba, Saskatchewan, Alberta, British Columbia and Yukon. Two or more lines may follow the same route, but due to the scale of the map the...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Federal

    Telegraphs Ontario and Quebec

    Contained within the 1st Edition (1906) of the Atlas of Canada is a map that shows the telegraph network for Ontario and western Quebec. Two or more lines may follow the same route, but only one line is indicated on the map. Therefore, well-settled portions of the country like Southern Ontario...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Federal

    Humidity and Fog

    Contained within the 3rd Edition (1957) of the Atlas of Canada is six maps that show the humidity and fog occurrences across Canada. Two maps on the top that show the mean mixing ratios for January and July, respectively. Mixing ratio is defined as the ratio of the mass of the water vapor to the...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Federal

    Ice

    Contained within the 4th Edition (1974) of the Atlas of Canada is a set of six maps that shows different types of ice accumulation.
    Organization:
    Natural Resources Canada
    Resource Formats:
    • PDF
    • JPG
  • Federal

    Telegraphs Manitoba, Saskatchewan and Alberta

    Contained within the 1st Edition (1906) Atlas of the Canada is a map that shows the telegraph network for Manitoba, Saskatchewan, and Alberta. Two or more lines may follow the same route, but only one line is indicated on the map. Therefore, well-settled portions of the country may have two or...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Federal

    Telephones Maritime Provinces and Quebec

    Contained within the 1st Edition (1906) of the Atlas of Canada is a map that shows the telephone network for the Maritime Provinces and Quebec circa 1906. Due to the scale of the map the inclusion of all the telephone lines in the vicinity of the larger cities and towns were not permitted. Thus,...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Federal

    Telegraphs Quebec and Maritime Provinces

    Contained within the 1st Edition (1906) of the Atlas of Canada is a map that shows the network and destinations of telegraph lines in Quebec and Maritime Provinces. More then one line may have followed the same route, but only one line is indicated on the map, especially in larger cities....
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Federal

    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
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