Glossary & Image Library

First Year Ice

Sea ice of not more than one winter's growth, developing from young ice; thickness (typically) 30 cm - 2 m. May be subdivided into thin first-year ice/white ice, medium first-year ice and thick first-year ice.

Thin first-year ice along the top third, medium to thick first-year ice along the right, and new ice forming in the open water		Mostly level medium-sized first-year floes