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17 records found
  • 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
  • Water balance - derived precipitation and evapotranspiration

    The map shows isolines for the annual precipitation and the annual evapotranspiration (in millimetres). Water is normally supplied by precipitation and lost through the processes of evapotranspiration and runoff or it may remain as surface or subsurface storage. Over long periods, generally...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • 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
  • Mean annual lake evaporation

    The map represents the mean value (in millimetres) of the annual loss of water through the evaporation process from the surfaces of open water bodies, such as ponds and shallow lakes and reservoirs based on the 10-year period 1957 to 1966. The greatest mean annual lake evaporation (more than 900...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Lighthouses and Sailing Routes, Pacific Coast

    Contained within the 1st Edition (1906) of the Atlas of Canada is a map that shows the lighthouses, as well as sailing routes along the Pacific Coast, circa 1906. There are routes that sailing distances are given from the principal ocean ports of Canada to the other great ocean ports of the...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Lighthouses and Sailing Routes on Pacific Coast

    Contained within the 2nd Edition (1915) of the Atlas of Canada is a map that shows the lighthouses and sailing routes on the Pacific Coast. Each sailing route has the distance between major foreign ports and important Canadian ports on the Pacific Ocean. A table gives the distance, in miles, to...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Lighthouses and Sailing Routes on Atlantic Coast

    Contained within the 2nd Edition (1915) of the Atlas of Canada is a map that shows the lighthouses and sailing routes on the Atlantic Coast. The map shows sailing routes and a table listing of the distance, in miles, from Halifax, Montreal and Quebec to major ports. Although, Newfoundland and...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Lighthouses and Sailing Routes, Atlantic Coast

    Contained within the 1st Edition (1906) of the Atlas of Canada is a map that shows the lighthouses and sailing routes on the Atlantic Coast. The map shows sailing routes and a table listing the distance, in miles, from Halifax, Montreal and Quebec to major ports. Although Newfoundland and...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Canals, Lighthouses and Sailing Routes St. Lawrence and Great Lakes

    Contained within the 1st Edition (1906) of the Atlas of Canada is a map that shows canals, as well as locations and types of Lighthouses along the St. Lawrence and Great Lakes. In addition, the map also shows sailing routes through those water bodies. There is a table of sailing distances, in...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Canals, Lighthouses and Sailing Routes on St. Lawrence River and Great Lakes

    Contained within the 2nd Edition (1915) of the Atlas of Canada is a map that shows the canals, routes and types of Lighthouses along the St. Lawrence and Great Lakes, circa 1915. There is a table of sailing distances, in geographical miles, between the ports of the United States and Canada on the...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
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