TY - JOUR
TI - Effect of salinity on sea ice motion
AU - Li Bing-Ru
AU - Wang Min-Min
AU - Lu Xiu-Yang
AU - Wan Zhan-Hong
AU - He Song
JN - Thermal Science
PY - 2018
VL - 22
IS - 4
SP - 1563
EP - 1570
PT - Article
AB - We combined large eddy simulation (LES) with a thermodynamic slab ice model  to simulate and study the sea ice motion and frazil ice dynamics in the ocean  mixed layer in the Arctic winter. To show the accurate representation of  leads in models, fluxes distributed laterally beneath leads and sea ice need  to be parameterized. The 3-D LES model, which is developed from a 2-D  turbulence model, is used to model the convection of beneath leads and sea  ice. The experiments were then achived by combining the LES model with the  ice model. The concentration of frazil ice was modeled using the Omstedt and  Svensson model. The ice crystal radius and growth rates were assumed to be  constant and the temperature and salinity changes with depth were taken into  account. Salinity distribution and frazil ice concentration were influenced  by ice motion, and variations in ocean salinity during freezing and thawing  were also investigated. Entrained flow caused by the movement of sea ice has  a significant influence on the eddy. Sea ice roughness is also important in  the formation of the eddy current, and the values of the ice crystal rise  velocity and the ice concentration source term coefficient influence frazil  ice dynamics. The effects of sea ice thermodynamic dissipation on the sea is  more remarkable, affecting the heat transfer to the atmosphere. The brine  rejected during ice crystal formation and dilution of seawater are other  important mechanisms of marine cyclical shocks.