| Term: | Air thawing index |
| Definition: |
The cumulative number of degree-days above 0˚C for the air temperature during a given period IPAPermafrost
The cumulative number of degree-days above 0C for the air temperature during a given period. The Air Thawing Index differs from the corresponding surface Thawing Index (see n-factor). TrombottoGeocryology GCW |