Arctic ['ɑːktɪk] adj. 北极的；极寒的 n. 北极圈；御寒防水套鞋

eg: In their model simulations, they artificially removed all Arctic sea ice at the beginning of June for selected years and examined if the ice would recover from such extreme event.
在模拟过程中，他们人为地把特定年份中六月初的所有北极海冰都转移走，观测冰层是否会在那样一场极限事件之后恢复。