基于Sentinel-1卫星数据的北极西北航道通航适宜性分析
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Navigable suitability analysis of the Arctic Northwest Passage based on Sentinel-1 satellite data
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图12. 2015—2019年每年9月西北航道累计不可通航次数 |
Fig. 12. Accumulated number of non-navigable times of the Northwest Passage in September from 2015 to 2019 |
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