1. Living with permafrost
- Author
-
Whalley, Brian
- Subjects
Arctic regions -- Natural history ,Frozen ground -- Study and teaching ,Geography ,Petroleum, energy and mining industries - Abstract
Permafrost is a layer of earth which results from perennial temperatures below zero degrees. It is not permanently frozen ground because local conditions may permit the creation of an active layer which thaws and refreezes. Human interaction with permafrost can be problematic because any addition of heat may upset the balance of temperature and cause the active layer to shift, damaging structures built on it. The features of permafrost are presented, as are various mechanisms for construction which allow life in permafrost regions. more...
- Published
- 1992