Principal Investigator:Nixon, Frederick M Licensed Year(s):20082007
2006
2005200420032002200120001999199819971996199519941993199219911990 Summary:
The active layer, overlying the permafrost layer, is the surface earth material that thaws and re-freezes each year. Active layer thickness and character can influence hunting, fishing, forestry, gardening, transportation and construction. Changes in the active layer can contribute to landslides which may damage structures, hamper transportation, affect water quality, and influence surface and sub...