Abstract
Modern numerical sea-ice models contain detailed parameterizations
of dynamic and thermodynamic processes affecting ice distribution
and thickness. However, nearly all such models advect sea ice in
response to wind and ocean forcing using either upstream or centered-difference
methods, whose deficiencies are well known. We describe application
of the second-order moment advection scheme of Prather J. Geophys.
Res. 91 (1986) 6671. In idealized tests this method produces relatively
distinct ice edges while maintaining positive ice thicknesses and
concentrations. Sensitivity of an Arctic circulation model forced
by climatological data is described. Crown Copyright (C) 2002 Published
by Elsevier Science Ltd. All rights reserved.
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