Open Government Portal

As we launch this enhanced integrated Open Government Portal search, you may notice that there has been a reduction in the number of open information records. Please note that you can still access the publications that no longer appear here by visiting: Government of Canada Publications and Library and Archives Canada. If you have any comments or questions contact us!

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205 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
  • Annual snowfall

    The map shows the annual snowfall (in centimetres) based on the 30-year period 1941-1970. Snowfall is measured by inserting a ruler into the new snow at several points to obtain its depth and to estimate the degree of drifting or scouring that has occurred. The water equivalent of snowfall for...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Urban Geology of the National Capital Area, Canada - Hydrogeological

    Urban Geology of Canada's National Capital Area is a pilot project aiming at developing approaches, methodologies and standards that can be applied to other major urban centres of the country, while providing the geoscience knowledge required for sound regional planning and environmental...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • ZIP
  • Urban Geology of the National Capital Area, Canada - Basemaps

    Urban Geology of Canada's National Capital Area is a pilot project aiming at developing approaches, methodologies and standards that can be applied to other major urban centres of the country, while providing the geoscience knowledge required for sound regional planning and environmental...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • ZIP
  • Annual precipitation

    Precipitation is derived from water vapour in the air, and it includes all forms of moisture falling on the earth's surface. Condensed water vapour accumulates in clouds, and precipitation occurs when the constituent ice crystals or water droplets grow too large to resist gravitational attraction...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Great Lakes Mosaic of Landsat MSS Images, Canada-Mosaic 2

    The mosaic of the Great Lakes Watershed is composed of 82 Landsat MSS images acquired between June 1 and September 15 from 1985 to 1987. It is 7921 pixels by 7201 lines and contains 4 bands of data. The geographic boundaries are: 40°- 52°N (latitude) and 95°-73° W (longitude), with sampling...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • ZIP
  • Great Lakes Mosaic of Landsat MSS Images, Canada-Mosaic 1

    The mosaic of the Great Lakes Watershed is composed of 82 Landsat MSS images acquired between June 1 and September 15 from 1985 to 1987. It is 7921 pixels by 7201 lines and contains 4 bands of data. The geographic boundaries are: 40°- 52°N (latitude) and 95°-73° W (longitude), with sampling...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • ZIP
  • Great Lakes Mosaic of Landsat MSS Images, Canada-Mosaic 4

    The mosaic of the Great Lakes Watershed is composed of 82 Landsat MSS images acquired between June 1 and September 15 from 1985 to 1987. It is 7921 pixels by 7201 lines and contains 4 bands of data. The geographic boundaries are: 40°- 52°N (latitude) and 95°-73° W (longitude), with sampling...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • ZIP
You can also access this registry using the API (see API Docs).