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首页> 外文期刊>Geophysical Research Letters >The influence of declining sea ice on shipping activity in the Canadian Arctic
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The influence of declining sea ice on shipping activity in the Canadian Arctic

机译：海冰下降对加拿大北极地区航运活动的影响

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摘要

Significant attention has focused on the potential for increased shipping activity driven by recently observed declines in Arctic sea ice cover. In this study, we describe the first coupled spatial analysis between shipping activity and sea ice using observations in the Canadian Arctic over the 1990-2015 period. Shipping activity is measured by using known ship locations enhanced with a least cost path algorithm to generate ship tracks and quantified by computing total distance traveled in kilometers. Statistically significant increases in shipping activity are observed in the Hudson Strait (150-500km traveled yr(-1)), the Beaufort Sea (40-450km traveled yr(-1)), Baffin Bay (50-350km traveled yr(-1)), and regions in the southern route of the Northwest Passage (50-250km traveled yr(-1)). Increases in shipping activity are significantly correlated with reductions in sea ice concentration (Kendall's tau up to -0.6) in regions of the Beaufort Sea, Western Parry Channel, Western Baffin Bay, and Foxe Basin. Changes in multiyear ice-dominant regions in the Canadian Arctic were found to be more influential on changes to shipping activity compared to seasonal sea ice regions.
机译：由于最近观察到的北极海冰覆盖率下降，引起了人们极大关注的是航运活动增加的潜力。在这项研究中，我们使用1990-2015年期间加拿大北极地区的观测资料，描述了航运活动与海冰之间的首次耦合空间分析。通过使用已知的船舶位置（通过最小成本路径算法增强）来生成船舶航迹，并通过计算以公里为单位的总行驶距离来量化运输活动。在哈德逊海峡（行驶150-500公里，yr（-1）），博福特海（行驶40-450km，yr（-1）），巴芬湾（行驶50-350km，yr（-1） ）），以及西北通道南部路线的区域（历经yr（-1）行驶了50-250 km）。运输活动的增加与波弗特海，西帕里海峡，西巴芬湾和福克斯盆地地区的海冰浓度降低（肯德尔的tau高达-0.6）显着相关。与季节性海冰区域相比，加拿大北极地区多年制冰区域的变化对航运活动的变化影响更大。

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