Map layers
Base layers
Data layers
Legend
Permafrost Extent
| Continuous (>90%) | |
| Discontinuous (50-90%) | |
| Glacier | |
| Isolated (>0-10%) | |
| Sporadic (10-50%) | |
| Absent (0%) | |
| Large Waterbodies (unfrozen below) |
Ground Ice
| Glacier | |
| High (>40% volume) | |
| Moderate (10-40% volume) | |
| Low (<10% volume) | |
| Unfrozen | |
| Variable |
Permafrost Laboratory
Geophysical Institute
University of Alaska Fairbanks
903 Koyukuk Drive
Fairbanks, AK 99775
U.S.A
www.permafrostwatch.org
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