seasonally frozen layer (SFL)
Link: http://w3id.org/permafrost/v/ipaglossary/t0290
Within: IPA Permafrost Glossary
Definition: Active layer in areas without permafrost.
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seasonally frozen layer (SFL)
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| Comment |
In Chinese and Russian literature, the seasonally frozen layer is synonymous with the "active layer" in areas without permafrost or with a deep permafrost table. It is underlain by unfrozen ground and usually has a positive mean annual ground temperature. Freezing progresses from the surface downward, whereas thawing progresses both downward from the surface, and upward from the bottom of the seasonally frozen layer.
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| dcterms:source |
https://doi.org/10.4224/20386561
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