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. 2016 Aug 1;6:30682. doi: 10.1038/srep30682

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(A) Percentage of area covered by ships as a function of month for latitude in the range 65–70^oN, 70–75^oN, 75–80^oN, 80–85^oN, and 85–90^oN. (B–F) Percentage (in logarithmic scale) of area covered by ships per month, latitude, and vessel type: total (B), cargo (C), tank (D), passenger (E), and fishing (F). (G) The percentage of ice coverage with month.