Fast ice

Alternative definitions (7), class: vernacular (0)
Term: Fast ice
Definition: Sea ice that is immobile due to its attachment to a coast, usually extending offshore to about the 20-m isobath. In protected bays and inlets, fast ice is smooth and level, typically reaching a thickness of between 2 and 2.5 m. Along exposed coastlines, fast ice may be greatly deformed. (Also called landfast ice.)
Created 2022.03.08
Last Modified 2023.03.27
Contributed by GCW Glossary