Accurate representation of the complex ocean-sea ice interaction is still an ongoing effort. In this study, we have coupled the Community Ice Code (CICE) model and Regional Ocean Modeling System (ROMS) to develop a high-resolution regional coupled ocean-sea ice model for polar regions. This setup allows us to investigate the interaction between ocean and sea ice in detail. The Coupled-Ocean-Atmosphere-Wave-Sediment-Transport (COAWST) modeling system is the core of this coupled model. Currently, the ROMS model in COAWST uses the Budgell sea ice model, embedded as a sub-module in it but introducing a more comprehensive sea ice model (CICE) may provide a better treatment of sea ice. Here, we present our preliminary results based on the coupled ROMS-CICE and ROMS-Budgell simulation over the Arctic Ocean. Our results show that both CICE and Budgell models perform better in simulating sea ice concentration during winter than during summer. Compared to the satellite observations, sea ice concentrations from the CICE model in most subregions have higher correlations and smaller centered root mean square errors, showing higher simulation skills. The sea ice thickness biases are larger in the Budgell model in the early months of the year, whereas in the CICE model they are larger after October. Both CICE and Budgell models overestimate the sea ice extent and sea ice volume in summer, and their performances differ in the subregions.

准确表示复杂的海-海冰相互作用仍然是一项持续的努力。在这项研究中，我们将社区冰码 (CICE) 模型和区域海洋建模系统 (ROMS) 结合起来，为极地地区开发了一个高分辨率的区域海冰耦合模型。这种设置使我们能够详细研究海洋和海冰之间的相互作用。耦合-海洋-大气-波浪-沉积物-输运 (COAWST) 建模系统是该耦合模型的核心。目前COAWST中的ROMS模型使用Budgell海冰模型，作为子模块嵌入其中，但引入更全面的海冰模型（CICE）可能会更好地处理海冰。在这里，我们展示了基于 ROMS-CICE 和 ROMS-Budgell 耦合模拟对北冰洋的初步结果。我们的结果表明，CICE 和 Budgell 模型在模拟冬季海冰浓度方面的性能优于夏季。与卫星观测相比，CICE 模型在大多数子区域的海冰浓度具有更高的相关性和更小的中心均方根误差，显示出更高的模拟能力。Budgel 模型中海冰厚度偏差在年初几个月较大，而在 CICE 模型中，它们在 10 月之后更大。CICE和Budgell模型均高估了夏季的海冰范围和海冰体积，并且在各子区域表现不同。大多数子区域的 CICE 模型的海冰浓度具有更高的相关性和更小的中心均方根误差，显示出更高的模拟技能。Budgel 模型中海冰厚度偏差在年初几个月较大，而在 CICE 模型中，它们在 10 月之后更大。CICE和Budgell模型均高估了夏季的海冰范围和海冰体积，并且在各子区域表现不同。大多数子区域的 CICE 模型的海冰浓度具有更高的相关性和更小的中心均方根误差，显示出更高的模拟技能。Budgel 模型中海冰厚度偏差在年初几个月较大，而在 CICE 模型中，它们在 10 月之后更大。CICE和Budgell模型均高估了夏季的海冰范围和海冰体积，并且在各子区域表现不同。