FIGURE 7.1 Map of mean differences in ice concentration from the seasonal minima corresponding to (a) the September climatology in the Arctic and (b) the February climatology in the Antarctic. SOURCE: Comiso (2003).
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7 Icebreaking Environments and Challenges to U.S. Fleet ."
Polar Icebreakers in a Changing World: An Assessment of U.S. Needs . Washington, DC: The National Academies Press,
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