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Mapping vessel traffic patterns in the ice-covered waters of the Pacific Arctic

Author

Listed:
  • Kelly Kapsar

    (Michigan State University)

  • Grant Gunn

    (University of Waterloo)

  • Lawson Brigham

    (University of Alaska Fairbanks)

  • Jianguo Liu

    (Michigan State University)

Abstract

Recent climate change has caused declines in ice coverage which have lengthened the open water season in the Arctic and increased access to resources and shipping routes. These changes have resulted in more vessel activity in seasonally ice-covered regions. While traffic is increasing in the ice-free season, the amount of vessel activity in the marginal ice zone (ice concentration 15–80%) or in pack ice (>80% concentration) remains unclear. Understanding patterns of vessel activities in ice is important given increased safety challenges and environmental impacts. Here, we couple high-resolution ship tracking information with sea ice thickness and concentration data to quantify vessel activity in ice-covered areas of the Pacific Arctic (northern Bering, Chukchi, and western Beaufort Seas). This region is a geo-strategically critical area that contains globally important commercial fisheries and serves as a corridor for Arctic access for wildlife and vessels. We find that vessel traffic in the marginal ice zone is widely distributed across the study area while vessel traffic in pack ice is concentrated along known shipping routes and in areas of natural resource development. Of the statistically significant relationships between vessel traffic and both sea ice concentration and thickness, over 99% are negative, indicating that increasing sea ice is associated with decreasing vessel traffic on a monthly time scale. Furthermore, there is substantial vessel traffic in areas of high concentration for bowhead whales (Balaena mysticetus), and traffic in these areas increased four-fold during the study period. Fishing vessels dominate vessel traffic at low ice concentrations, but vessels categorized as Other, likely icebreakers, are the most common vessel type in pack ice. These findings indicate that vessel traffic in areas of ice coverage is influenced by distant policy and resource development decisions which should be taken into consideration when trying to predict future vessel-ice interactions in a changing climate.

Suggested Citation

  • Kelly Kapsar & Grant Gunn & Lawson Brigham & Jianguo Liu, 2023. "Mapping vessel traffic patterns in the ice-covered waters of the Pacific Arctic," Climatic Change, Springer, vol. 176(7), pages 1-17, July.
    • Handle: RePEc:spr:climat:v:176:y:2023:i:7:d:10.1007_s10584-023-03568-3
    DOI: 10.1007/s10584-023-03568-3
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    References listed on IDEAS

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    1. Chuya Wang & Minghu Ding & Yuande Yang & Ting Wei & Tingfeng Dou, 2022. "Risk Assessment of Ship Navigation in the Northwest Passage: Historical and Projection," Sustainability, MDPI, vol. 14(9), pages 1-20, May.
    2. Lawrence R. Mudryk & Jackie Dawson & Stephen E. L. Howell & Chris Derksen & Thomas A. Zagon & Mike Brady, 2021. "Impact of 1, 2 and 4 °C of global warming on ship navigation in the Canadian Arctic," Nature Climate Change, Nature, vol. 11(8), pages 673-679, August.
    3. Scott Stephenson & Laurence Smith & Lawson Brigham & John Agnew, 2013. "Projected 21st-century changes to Arctic marine access," Climatic Change, Springer, vol. 118(3), pages 885-899, June.
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