Estimation of travel time reduction for ice-breaking ships when considering ice information data

In light of the recent increase in polar shipping and potential future increase with continued climate change reliable routing in ice-covered waters becomes increasingly important for environmental, economic and safety concerns. Dependable route suggestions have the potential to reduce travel times...

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Bibliographic Details
Published in:Annals of glaciology 2024-01, Vol.65, p.1-11
Main Authors: Schmitz, Bernhard, Eis, Christine, Bünger, H. Jakob, Büskens, Christof
Format: Article
Language:English
Subjects:
Algorithms
Climate change
Costs
Energy consumption
Heuristic
Ice
Ice cover
Optimization techniques
polar and subpolar oceans
Polar waters
Radar
Radar imaging
remote sensing
Route optimization
sea ice
Shipping
Travel
Travel time
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Summary:In light of the recent increase in polar shipping and potential future increase with continued climate change reliable routing in ice-covered waters becomes increasingly important for environmental, economic and safety concerns. Dependable route suggestions have the potential to reduce travel times through polar waters significantly. We apply the Anytime Repairing A* pathfinding algorithm to classified Copernicus Sentinel 1 radar images to estimate how much travel times can be reduced. For multiple example scenarios, it is quantified how much the travel time is reduced if a ship follows these suggestions compared to navigating without any ice information available exterior to the visual range (VR). It was found that having ice information available is most beneficial in complex ice situations, where it can reduce travel time by up to 34% for a VR of 2 km.
ISSN:0260-3055
1727-5644
DOI:10.1017/aog.2024.28