Toward Quantifying the Increasing Accessibility of the Arctic Northeast Passage in the Past Four Decades

作     者：Chao MIN Xiangying ZHOU Hao LUO Yijun YANG Yiguo WANG Jinlun ZHANG Qinghua YANG Chao MIN;Xiangying ZHOU;Hao LUO;Yijun YANG;Yiguo WANG;Jinlun ZHANG;Qinghua YANG

作者机构：School of Atmospheric SciencesSun Yat-sen Universityand Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai)Zhuhai 519082China Department of Atmospheric and Oceanic SciencesFudan UniversityShanghai 200438China Nansen Environmental and Remote Sensing Center and Bjerknes Centre for Climate Research2007 BergenNorway Polar Science CenterApplied Physics LabUniversity of WashingtonSeattleWA 98105USA 

出 版 物：《Advances in Atmospheric Sciences》 (大气科学进展（英文版）)

年 卷 期：2023年第40卷第12期

页      面：2378-2390,I0016-I0018页

核心收录：

学科分类：07[理学] 070601[理学-气象学] 08[工学] 0706[理学-大气科学] 0824[工学-船舶与海洋工程] 082401[工学-船舶与海洋结构物设计制造] 

基　　金：the National Natural Science Foundation of China(No.41922044,41941009) the Guangdong Basic and Applied Basic Research Foundation(No.2020B1515020025) the fundamental research funds for the Norges Forskningsråd(No.328886) C Min acknowledges support from the China Scholarship Council(No.202006380131) 

主　　题：Arctic sea ice Arctic shipping climate change human-environment 

摘      要：Sea ice,one of the most dominant barriers to Arctic shipping,has decreased dramatically over the past four *** maritime transport is hereupon growing in recent *** produce a long-term assessment of trans-Arctic accessibility,we systematically revisit the daily Arctic navigability with a view to the combined effects of sea ice thickness and concentration throughout the period 1979−*** general trends of Navigable Windows(NW)in the Northeast Passage show that the number of navigable days is steadily growing and reached 89±16 days for Open Water(OW)ships and 163±19 days for Polar Class 6(PC6)ships in the 2010s,despite high interannual and interdecadal variability in the *** consecutive NWs have emerged annually for both OW ships and PC6 ships since 2005 because of the faster sea ice *** the 1980s,the number of simulated Arctic routes has continuously increased,and optimal navigability exists in these years of record-low sea ice extent(e.g.,2012 and 2020).Summertime navigability in the East Siberian and Laptev Seas,on the other hand,varies dramatically due to changing sea ice *** systematic assessment of Arctic navigability provides a reference for better projecting the future trans-Arctic shipping routes.