Articles | Volume 13, issue 11
Research article
08 Nov 2019
Research article |  | 08 Nov 2019

Wave energy attenuation in fields of colliding ice floes – Part 1: Discrete-element modelling of dissipation due to ice–water drag

Agnieszka Herman, Sukun Cheng, and Hayley H. Shen

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Cited articles

Ardhuin, F., Collard, F., Chapron, B., Girard-Ardhuin, F., Guitton, G., Mouche, A., and Stopa, J.: Estimates of ocean wave heights and attenuation in sea ice using the SAR wave mode on Sentinel-1A, Geophys. Res. Lett., 42, 2317–2325,, 2015. a
Ardhuin, F., Boutin, G., Stopa, J., Girard-Ardhuin, F., Melsheimer, C., Thomson, J., Kohout, A., Doble, M., and Wadhams, P.: Wave attenuation through an arctic marginal ice zone on 12 October 2015: 2. Numerical modeling of waves and associated ice breakup, J. Geophys. Res., 123, 5652–5668,, 2018. a
Bateson, A. W., Feltham, D. L., Schröder, D., Hosekova, L., Ridley, J. K., and Aksenov, Y.: Impact of floe size distribution on seasonal fragmentation and melt of Arctic sea ice, The Cryosphere Discuss.,, in review, 2019. a
Bennetts, L. and Squire, V.: Model sensitivity analysis of scattering-induced attenuation of ice-coupled waves, Ocean Model., 45–46, 1–13,, 2012. a
Cheng, S., Rogers, W., Thomson, J., Smith, M., Doble, M., Wadhams, P., Kohout, A., Lund, B., Persson, O., Collins III, C., Ackley, S., Montiel, F., and Shen, H.: Calibrating a viscoelastic sea ice model for wave propagation in the Arctic fall marginal ice zone, J. Geophys. Res., 122, 8740–8793,, 2017a. a
Short summary
Sea ice interactions with waves are extensively studied in recent years, but mechanisms leading to wave energy attenuation in sea ice remain poorly understood. Close to the ice edge, processes contributing to dissipation include collisions between ice floes and turbulence generated under the ice due to velocity differences between ice and water. This paper analyses details of those processes both theoretically and by means of a numerical model.