| Term: | Intermediate discontinuous permafrost |
| Definition: | 1. (North-American usage) Permafrost underlying 35 to 65 percent of the area of exposed land surface; 2. (Russian usage) Permafrost underlying 40 to 60 percent of the area of exposed land surface |
| Term: | Intermediate discontinuous permafrost |
| Definition: | (1) (North American usage) permafrost underlying 35 - 65% of the area of exposed land surface (2) (Russian usage) permafrost underlying 40 - 60% of the area of exposed land surface. |