Open waterBy Samantha Lake / 18/04/2024 ALL0-9ABCDEFGHIJKLMNOPQRSTUVWXYZ« Back to Glossary IndexSea ice terminology describes a large area of freely navigable water in which ice is present, with a concentration of less than 1/10. In open water no ice of land origin is present. Related Articles: FAQGlossary: Open leadGlossary: PolynyaOther ResourcesGlossary: Multiyear ice« Back to Glossary Index