V2EX ice sheet

Ice Sheet

Definition / 定义

ice sheet冰盖;指覆盖面积极大的陆地冰体(通常超过约 5 万平方公里),由长期积雪压实成冰并不断流动形成。典型例子有南极冰盖格陵兰冰盖。(注:在口语或科普中也常泛指大范围的“冰层/冰原”,但严格地理学意义上多指陆地上的大型冰体。)

Pronunciation / 发音

/as it/

Examples / 例句

The ice sheet is melting faster than scientists expected.
冰盖融化的速度比科学家预期的更快。

As the ice sheet thins, it can speed up glaciers and raise global sea levels, affecting coastal cities worldwide.
随着冰盖变薄,它可能加速冰川流动并抬升全球海平面,进而影响世界各地的沿海城市。

Etymology / 词源

ice 来自古英语 īs(冰);sheet 来自古英语 scete(布片、薄片、覆盖物)。合起来的 ice sheet 直译为“像床单一样铺展的冰”,形象描述了大片冰体覆盖陆地的状态。该术语在地理学与冰川学语境中逐渐固定,用来区分较小的 ice cap(冰帽)与更庞大的冰体系统。

Related Words / 相关词

Literary Works / 文学作品

  • The Sixth Extinction(Elizabeth Kolbert)在讨论气候变化与海平面上升时常提及格陵兰与南极的冰盖。
  • The Ice at the End of the World(Jon Gertner)以格陵兰为核心,频繁使用 “ice sheet” 描述其地理与科学研究。
  • Field Notes from a Catastrophe(Elizabeth Kolbert)涉及全球变暖对大型冰体(含冰盖)的影响,出现相关用法。
  • IPCC Assessment Reports(政府间气候变化专门委员会评估报告)科学写作中高频使用 “ice sheet” 讨论冰盖质量平衡与海平面贡献。
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