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2 - Sea Ice Physics and Modelling

Published online by Cambridge University Press:  12 October 2017

Tom Carrieres
Affiliation:
Environment and Climate Change Canada
Mark Buehner
Affiliation:
Environment and Climate Change Canada
Jean-Franҫois Lemieux
Affiliation:
Environment and Climate Change Canada
Leif Toudal Pedersen
Affiliation:
Technical University of Denmark, Lyngby
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Summary

To forecast the evolution of the sea ice cover in a particular region over a certain period of time, an automated prediction system must have a sea ice model. To produce these forecasts, a sea ice model requires information about the initial sea ice conditions and the atmospheric and oceanic forcing that largely govern the evolution of sea ice. The goal of this chapter is to describe how dynamics and thermodynamics processes are represented in large-scale continuum-based sea ice models. The physical processes presented include the transfer of momentum at the ice interfaces, sea ice rheology, transport, ridging, lateral melt and vertical growth and melt. This chapter also introduces how the equations for dynamics and thermodynamics are typically implemented and solved numerically. Recent model developements such as wave-ice interactions, salt dynamics and melt pond modelling are also discussed.

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