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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1 record found
  • Atmospheric Pressure

    Contained within the 3rd Edition (1957) of the Atlas of Canada is a plate that shows four maps, one for each of January, April, July and October showing mean sea-level pressure in millibars. These maps were prepared from atmospheric pressure readings taken daily at 00, 06, 12 and 18 hours G.M.T....
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
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