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188 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

    Streamflow gauging stations

    The map shows the location and the number of years of recorded data for the Water Survey of Canada streamflow gauging stations and the Quebec Department of Natural Resources stations. Almost 9 per cent of all the world's river water which flows to the oceans has its source within Canada's...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Federal

    1Freeze-up and break-up of rivers and lakes

    The plate contains four maps showing the mean river freeze-over date, the mean lake freeze-over date, the mean river ice-free date and the mean lake ice free date. The four maps depict, in a general way, the average dates on which freshwater bodies in Canada become completely ice-covered in the...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Federal

    Limits of Forest Trees

    Contained within the 2nd Edition (1915) of the Atlas of Canada, is a map that shows the northern limits of approximately 40 different tree species in Canada, including an extension into the Northern U.S. Red, green and blue lines delineate the limits of the trees and forests. The map also...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Federal

    Influence of glaciers on streamflow

    The map shows the location of glaciers and ice caps and also indicates the rivers and the lakes, which are fed by a glacier (or an ice cap) meltwater. The purpose of this plate is to identify those streams which are fed by glacier meltwaters. Because of the scale of the map, many minor glaciers...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Federal

    Limits of Forest Trees

    Contained within the 1st Edition (1906) of the Atlas of Canada is a map that shows the northern limits of approximately 40 different tree species in Canada, including an extension into the Northern U.S. Using green lines the map displays the northern limits of the principal trees found within the...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Federal

    Forests

    Contained within the 1st Edition (1906) of the Atlas of Canada is a map that shows the extent of forested regions, using tints of green, in Canada circa 1906. These regions include the Southern forest, Northern forest, and the Cordilleran forest. The map presents general portions of forested...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Federal

    The Boreal Forest

    Contained within the Atlas of Canada Poster Map Series, is a poster which shows the location of boreal forest in Canada. The two sided poster graphically depicts the importance of the boreal forest as a dynamic system of shrubs, trees, herbs, mosses, micro-organisms, insects and animals...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Federal

    Forests

    Contained within the 2nd Edition (1915) of the Atlas of Canada, is a map that shows the extent of forested regions, using various colouring, in Canada. These regions include the Southern forest, Northern forest, and the Cordilleran forest. The map presents general portions of forested areas...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
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