基于“永盛轮”航线冰情分析的北极东北航线通航性研究

海冰冰情是开发、利用北极航道的关键信息,研究利用2006—2015年北极地区逐日海冰密集度数据,根据2013年"永盛轮"首航北极东北航道时所经航线为例,提取了航线冰情要素,包括航线通航窗口、逐日海冰密集度时空分布以及海冰密集度月标准差等,对航线通航条件进行了研究。根据航线冰情要素获得了十年间航线通航窗口的基本情况,十年间航线所经水域的大体通航情况和主要冰障位置,7—10月份航线所经水域海冰密集度的变化动态。通过对航线冰情要素的分析,得出影响航线的两个关键海域,并分析了"永盛轮"航线与关键水域航线通航窗口的变化趋势。

Research on the navigability of the Arctic Northeast Route based on sea ice conditions during the passage of M/V Yong Sheng

Sea ice condition is critical in developing and using Arctic passages. In this study, sea ice concentration products (2006–2015) from The University of Bremen in Germany were considered, and the sea ice regime along the route of M/V Yong Sheng in 2013 was extracted (route navigational window, spatial distribution of daily sea ice concentration, and monthly standard deviation of sea ice concentration). Then, the basic conditions of the navigational window of the route from 2006 to 2015 were analyzed. The general navigable conditions, main locations of ice barriers from 2006 to 2015, and fluctuations of sea ice concentration of the waters from July to October were established. Furthermore, the key areas affecting the navigability of the Arctic Northeast Passage were determined, and the trends of the navigational window of the route of M/V Yong Sheng and the key areas were determined.