Sørsdal Ice-Ocean Model

A numerical ocean model based on the Regional Ocean Modelling System (ROMS) framework was run for the Sorsdal ice shelf region and included modifications for ice/ocean thermodynamics and mechanical pressure, following (Dinniman et al., 2007). The model domain was discretised on a polar stereographic grid with a uniform 2 km horizontal resolution. The vertical terrain-following coordinate had 31 vertical layers with a sigmoidal layer distribution to provide higher vertical resolution at the surface and bottom regions.

本研究基于区域海洋建模系统（Regional Ocean Modelling System，ROMS）框架搭建数值海洋模型，针对索斯达尔冰架区域开展模拟，并参照Dinniman等人（2007）的研究方案，对冰-海洋热力学与机械压力模块进行了适配修改。模型计算区域采用极射赤平投影网格（polar stereographic grid）进行离散，水平分辨率统一为2千米。垂直方向采用地形追随坐标（terrain-following coordinate），共设置31层垂直网格，采用S型层分布方案，以在表层与底层区域获得更高的垂直分辨率。