Sea Ice Arctic Ocean 1969-1999
- This polygon dataset is from the North American Atlas – Sea Ice data set. It shows the approximate extent of marine areas in the Arctic covered by permanent polar ice. The data originated from the Canadian Ice Service and was used in the 1:6,000,000 National Atlas of Canada Reference Map Series. It is represented by polygons showing the average minimum ice limit over a 30 year period, 1969-1999.
- Geologic Survey (U.S.)
- Northern Hemisphere, Western Hemisphere, Arctic Ocean, and North America
- polygon, oceans, Ice--Arctic regions , Sea ice., Ice., Icebergs., and glaciers.
- Held by
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