Sea Ice Modeling and Data Assimilation (SIMDA)

Integrated Foundations of Sensing, Modeling, and Data Assimilation for Sea Ice Prediction
Department of Defense Multidisciplinary University Research Initiatives program through the Office of Naval Research

Sea ice numerics

17 Oct 2022 - Tongtong Li


New numerical approaches have been developed to improve accuracy, stability, and efficiency in computational modeling of sea ice dynamics. This work enables replacement of current generation algorithms that are slow-converging and potentially unstable with methods that obtain higher-order convergence rates in smooth regions, resolve discontinuities in the sharp features of sea ice covers, and incorporate physical constraints intrinsically without post-processing.

The picture shows the computed solutions (left: velocity, right: ice thickness) of the viscous-plastic sea ice model obtained by reference scheme and newly developed approach.

More details could be found in the manuscript “Improving numerical accuracy for the viscous-plastic formulation of sea ice”. This work is done by Tongtong Li, Anne Gelb and Yoonsang Lee, which is available on ArXiv and is submitted in 2022.