Old ice

Alternative definitions (5), class: vernacular (0)

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Term: Old ice
Definition: Sea ice that has survived at least one summer's melt. Most topographic features on old ice are smoother than those on first-year ice. May be subdivided into second-year ice and multiyear ice.
GCW WMOSeaIce
Created 2022.03.08
Last Modified 2023.03.27
Contributed by GCW Glossary
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