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SENTINEL-1 CONTRIBUTION TO MONITORING MARITIME ACTIVITY IN THE ARCTIC

机译：Sentinel-1对北极地区监测海事活动的贡献

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This paper presents results on the use of Sentinel-1 combined with satellite AIS to monitor maritime activity in the Arctic. Such activities are expected to increase, even if not uniformly across the Arctic, as the ice cover in the region retreats due to changes in climate. The objectives of monitoring efforts in the region can vary from country to country, but are generally related to increasing awareness on non-cooperative, small and cruise ships, fisheries, safety at sea, and Search and Rescue. A ship monitoring study has been conducted, involving more than 2,000 Sentinel-1 images acquired during one year in the central Arctic, where the ship densities are high. The main challenges to SAR-based monitoring in this area are described, solutions for some of them are proposed, and analyses of the results are shown. With the high detection thresholds needed to prevent false alarms from sea ice, 16% of the ships detected overall in the Sentinel-1 images have not been correlated to AIS-transmitting ships, and 48% of the AIS-transmitting ships are not correlated to ships detected in the images.
机译：本文提出了使用Sentinel-1结合卫星AIS来监测北极的海事活动的结果。这些活动预计即使在北极均匀地均匀地增加，因为该地区的冰盖由于气候变化而撤退。监测该地区的努力的目标可能因国家而异，但与不断提高对非合作，小型和游轮，渔业，海上安全的意识以及搜救有关。已经进行了船舶监测研究，涉及在北极中的一年内获得的超过2,000个Sentinel-1图像，其中船长很高。描述了在该区域中基于SAR的监测的主要挑战，提出了一些它们的解决方案，并显示了结果的分析。利用高检测阈值来防止来自海冰的误报，在Sentinel-1图像中总体检测到的16％尚未与AIS传输船相关联，并且48％的AIS传输船舶不相关在图像中检测到的船舶。

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