二に年ねん氷ごおり

noun

second-year ice

Technical term in glaciology and oceanography for sea ice that has survived one summer's melt and is in its second winter of growth.

• 北ほっ極きょく海かいでは、二に年ねん氷ごおりが広こう範はん囲いに分ぶん布ぷしている。

  In the Arctic Ocean, second-year ice is widely distributed.