Concept information
Preferred term
drift ice
Type
-
http://www.irandoc.ac.ir/onto/irandoc-meta/Concept
Broader concept
Narrower concepts
Definitions
- Prior to approximately 2014, drift ice was synonymous with the various grades of pack ice, described as very open (with an ice concentration of 1/10 to 3/10), open (4/10 to 6/10, with many leads and polynyas and the floes generally not in contact with one another), close (7/10 to 8/10, composed of floes mostly in contact), very close (9/10 to less than 10/10), and compact (10/10, with no water visible, called consolidated pack ice if the floes are frozen together). This is deprecated, with pack ice now referring to drift ice with a concentration equal to or above 7/10; however, other usages are still common.
Obsolete
- false
closeMatch
In other languages
-
Persian
URI
http://www.irandoc.acir/onto/irandoc/SWEETT18466
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