| Term: | Permafrost zone |
| Definition: |
A major subdivision of a permafrost region. NSIDCCryosphere
A major subdivision of a permafrost region IPAPermafrost GCW |
| Term: | Permafrost zone |
| Definition: | A major subdivision of a permafrost region. |
| Term: | Permafrost zone |
| Definition: | A major subdivision of a permafrost region |