Sea ice formation processes occur on subgrid scales, and the detailed physics describing the processes are therefore not generally represented in climate models. One likely consequence of this is the premature closing of areas of open water in model simulations, which may result in a misrepresentation of heat and gas exchange between the ocean and atmosphere. This work demonstrates the implementation of a more realistic model of sea ice formation, introducing grease ice as a wind and oceanic stress‐dependent intermediary state between water and new sea ice. We use the fully coupled land‐atmosphere‐ocean‐sea ice model, HadGEM3‐GC3.1 and perform a three‐member ensemble with the new grease ice scheme from 1964 to 2013. Comparing our sea ice results with the existing ensemble without grease ice formation shows an increase in sea ice thickness and volume in the Arctic. In the Antarctic, including grease ice processes results in large local changes to both simulated sea ice concentration and thickness, but no change to the total area or volume.

中文翻译：

---

包括油脂冰的耦合气候模型中的海冰形成

海冰的形成过程发生在亚网格尺度上，因此描述该过程的详细物理原理通常不会在气候模型中表示。这种情况的一个可能的后果是在模型仿真中过早关闭了开放水域，这可能导致海洋与大气之间热交换和气体交换的表述不正确。这项工作演示了一个更现实的海冰形成模型的实现，将油脂冰引入了风和水与新海冰之间依赖海洋应力的中间状态。我们使用了完全耦合的陆地-大气-海洋-海冰模型HadGEM3-GC3.1，并在1964年至2013年之间与新的油脂冰计划进行了三人合奏。将我们的海冰结果与现有的没有油脂冰形成的集合进行比较，表明北极海冰的厚度和体积都在增加。在南极，包括脂冰过程将导致模拟海冰浓度和厚度发生较大的局部变化，但总面积或体积没有变化。