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5 records found
  • Open Data

    Paleo-environmental records of climate change across Canada - Vegetation Hist...

    In order to predict how present changes in climate will affect Canada's environment, it is essential to understand the environmental impacts of past climate changes. In this activity, paleogeographic data from the last 18,000 years are assembled, synthesized, published, and web-enabled to help...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • ZIP
  • Open Data

    River systems of Canada

    The map shows the location of rivers, glaciers and the six physiographic regions of Canada. Rivers serve as the natural drainage channels for surface waters. The network formed by river systems receives water from two main sources: runoff and base flow. Runoff is that part of precipitation which...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Open Data

    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
  • Open Data

    Surficial Materials

    Most unconsolidated materials covering the Canadian landmass have glacial origins. Some sediments were entrained by glaciers and deposited at a distance without being sorted. Other sediments were picked up and reworked by glacial melt water, or transported and deposited by river or wind action....
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JP2
    • ZIP
    • other
  • Open Data

    Radiocarbon dates, offshore Canada

    Radiocarbon dates are derived from organic samples collected through marine and coastal expeditions of the Geological Survey of Canada Atlantic and Pacific. These efforts were conducted primarily to better understand the spatial and temporal coverage of sediments and seabed-fast marine ice during...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • ESRI REST
    • FGDB/GDB
    • WMS
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