drift ice

From Glossary of Meteorology
Any sea ice that has drifted from its place of origin.

The term is used in a wide sense to include any areas of sea ice, other than fast ice, no matter what form it takes or how disposed.
U.S.N. Hydrographic Office 1952. A Functional Glossary of Ice Terminology. Circular M.

Copyright 2024 American Meteorological Society (AMS). For permission to reuse any portion of this work, please contact permissions@ametsoc.org. Any use of material in this work that is determined to be “fair use” under Section 107 of the U.S. Copyright Act (17 U.S. Code § 107) or that satisfies the conditions specified in Section 108 of the U.S.Copyright Act (17 USC § 108) does not require AMS’s permission. Republication, systematic reproduction, posting in electronic form, such as on a website or in a searchable database, or other uses of this material, except as exempted by the above statement, require written permission or a license from AMS. Additional details are provided in the AMS Copyright Policy statement.