Concept information
Preferred term
PERMAFROST
Definition
- A layer of soil or bedrock at a variable depth beneath the surface of the earth in which the temperature has been below freezing continuously from a few to several thousands of years. (en)
Broader concept
- SOILS (en)
Change note
- 2021-08-27 13:51:01.0 [tstevens] update Definition (A layer of soil or bedrock at a variable depth beneath the surface of the earth in which the temperature has been below freezing continuously from a few to several thousands of years.); update Definition (American Meteorological Society Glossary of Meteorology);
URI
https://gcmd.earthdata.nasa.gov/kms/concept/fb3ce3be-d830-407f-bd7c-58d66c24b6be
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