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TC | Articles | Volume 14, issue 10
The Cryosphere, 14, 3465–3478, 2020
https://doi.org/10.5194/tc-14-3465-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
The Cryosphere, 14, 3465–3478, 2020
https://doi.org/10.5194/tc-14-3465-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 19 Oct 2020

Research article | 19 Oct 2020

Toward a method for downscaling sea ice pressure for navigation purposes

Jean-François Lemieux et al.

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Bouchat, A. and Tremblay, B.: Using sea-ice deformation fields to constrain the mechanical strength parameters of geophysical sea ice, J. Geophys. Res.-Oceans, 122, 5802–5825, https://doi.org/10.1002/2017JC013020, 2017. a
Coon, M. D., Maykut, G. A., Pritchard, R. S., Rothrock, D. A., and Thorndike, A. S.: Modeling the pack ice as an elastic-plastic material, AIDJEX Bulletin, 24, 1–105, 1974. a
Daley, C., Alawneh, S., Peters, D., and Colbourne, B.: GPU-Event-Mechanics Evaluation of Ice Impact Load Statistics, in: OTC Arctic Technology Conference, https://doi.org/10.4043/24645-MS, Houston, Texas, USA, 10–12 February 2014. a, b
Dukowicz, J. K.: Comments on the “stability of the viscous-plastic sea ice rheology”, J. Phys. Oceanogr., 27, 480–481, 1997. a, b, c, d, e, f
Dupont, F., Higginson, S., Bourdallé-Badie, R., Lu, Y., Roy, F., Smith, G. C., Lemieux, J.-F., Garric, G., and Davidson, F.: A high-resolution ocean and sea-ice modelling system for the Arctic and North Atlantic oceans, Geosci. Model Dev., 8, 1577–1594, https://doi.org/10.5194/gmd-8-1577-2015, 2015. a
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Short summary
Sea ice pressure poses great risk for navigation; it can lead to ship besetting and damages. Sea ice forecasting systems can predict the evolution of pressure. However, these systems have low spatial resolution (a few km) compared to the dimensions of ships. We study the downscaling of pressure from the km-scale to scales relevant for navigation. We find that the pressure applied on a ship beset in heavy ice conditions can be markedly larger than the pressure predicted by the forecasting system.
Sea ice pressure poses great risk for navigation; it can lead to ship besetting and damages. Sea...
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