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Term: Additional zones Class:  
 vernacular   (0%)
Created 6 June 2017
Last modified 6 June 2017
Contributed by GCW Glossary

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Definition: Additional zones present separate layers on an ice chart. If it is necessary to show the actual boundaries of zones of discontinuities (leads and fractures), changing hummock and ridge concentration, level ice, zones of different stages of melting or other additional characteristics, they are identified only by one characteristic.  Bushuyev 

 GCW 
Examples: