The Sea-ice Model in ROMS

Kate Hedstrom (1), Paul Budgell (2), and Enrique Curchitser (3)
(1) ARCS/Univeristy of Alaska
(2) IMR and Bjerknes for Climate Research
(3) LDEO, Columbia University

ROMS now includes an optional sea-ice component. This model will be
described in terms of the algorithms used and the parameters to set
when using it. It is a combination of other models, with the
elastic-viscous-plastic (EVP) dynamics from Hunke and Dukowicz (1997)
and the thermodynamics from Mellor and Kantha (1989). Currently, the
thermodynamics include just one ice category with a thickness,
concentration, and internal temperature, but we'd like to expand it to
include more categories and more vertical temperature levels, much like the modern CICE model. Meanwhile, the largest errors come about due to uncertainties in the atmospheric fluxes - the atmospheric bulk flux formulation is also subject to change.