Author(s): Trisha Bellchamber-Amundrud; Humfrey Melling; R. Grant Am
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Abstract: Multi-category re-distribution models are largely untested against observations of the evolving thickness of pack ice on daily or seasonal time scales. To ascertain the accuracy of re-distribution algorithms, a coastal, local sea-ice draft evolution model was developed. The model is initialized with ice draft and velocity data and forced with meteorological data during specific ice motion events. A comparison of modelled and observed thermal development of the sea ice pack draft characteristics through the fall freeze-up season shows excellent agreement indicating thermal growth processes are represented correctly. Modelled ice draft evolution under mechanical forcing forms too much ridged ice under traditional mechanical redistribution schemes.
Year: 2002