FYI Sea Abbreviation

FYI has various meanings in the Sea category. Discover the full forms, definitions, and usage contexts of FYI in Sea.

First Year Ice

Most Common

Sea ice of not more than one winter's growth, developing from young ice; 30 centimetres to two metres thick. May be subdivided into thin first–year ice/white ice, medium first–year ice and thick first–year ice.

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