About ABE MOTOHISA
About 北大 北極域研究セ
About 海洋工学パネル
About route(air transportation)
About Arctic Ocean
About logistic system
About icebreaker
About LNG tanker
About ships classified by structure
About ratio
About mean sea level
About drift ice
About polar orbit
About scientific satellite
About container ship
About port improvement
About international cooperation
About transportation cost
About sea ice
About sea ice concentration
About semi-submersible ship
About Northern Sea Route
About Sea ice
About Navigation and practical business
About 北極海航路
About 現状
About 展望
About 物流
About 視点