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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

Change note

  • 2021-08-27 14:40:52.0 [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/08240c92-00b5-4f25-bf2e-8030531a78d2

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