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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155 records found
  • AVHRR Land Cover Data, Canada-Polar Ice

    This land cover data set was derived from the Advanced Very High Resolution Radiometer (AVHRR) sensor operating on board the United States National Oceanic and Atmospheric Administration (NOAA) satellites. Information on the NOAA series of satellites can be found at...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • ZIP
  • 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
  • Glacier Retreat

    Contained within the 4th Edition (1974) of the Atlas of Canada is a map that shows the successive stages in the retreat of the last ice sheet in North America in respect to coverage of the Canadian landmass. Included with the map are the speculative ice-marginal positions with approximate time in...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • PDF
    • JPG
  • 10434 CLSR

    Tp.24, R.18, W5M; ADJ JCT ICE & BEAVERFORT R.
    Organization:
    Natural Resources Canada
    Resource Formats:
    • other
  • Land Cover

    The map is based on satellite data obtained from the Advanced Very High Resolution Radiometre (AVHRR) on board the NOAA-14 satellite. Each land cover type can be identified by its unique spectral signature. Each signature is identified by a particular colour on the map. The land cover classes...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • other
    • PDF
  • Permafrost

    Permafrost occurs when the ground remains at or below a temperature of 0oC for a minimum period of two years. Permafrost occurs not only at high latitudes but also at high altitudes. Almost all of the soil moisture in permafrost occurs in the form of ground ice, which in turn occurs in several...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JP2
    • ZIP
    • other
  • 42702 CLSR

    PORTION SOUTH BDY EAST FROM ICE R.
    Organization:
    Natural Resources Canada
    Resource Formats:
    • other
  • 65026 CLSR

    TRBM OF QUAD 105B/06 - ICE LAKES
    Organization:
    Natural Resources Canada
    Resource Formats:
    • other
  • 71330 CLSR

    POWERLINE EASEMENT FROM NCPC TRANSMISSION LINE TO ICE MELT STATION ALONG ROBERT CAMPBELL HIGHWAY (Y.T. HIGHWAY NO. 4)
    Organization:
    Natural Resources Canada
    Resource Formats:
    • other
  • 71253 CLSR

    EASEMENT OF TRANSMISSION LINE TAP TO ICE MELT STATIONS, AISHIHIK ROAD NEAR SEVEN MILE CREEK, QUAD 115 A/14
    Organization:
    Natural Resources Canada
    Resource Formats:
    • other
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