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Top Terms > Materials > Classes of materials > Natural earth crust materials > Soils > Soils by properties > Soils by frost condition or potential > Permafrost

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Permafrost (Rbespfp)

Definition
Perennially frozen ground, occurring wherever the temperature remains at or below 0 degrees Celsius for two or more years in a row. (Source: AASHTO Glossary)
Broader Term
Soils by frost condition or potential (Rbespf)
Related Terms (Hierarchical)
Frost heaving soils (Rbespfd)
Frost susceptible soil (Rbespff)
Frozen soils (Rbespfh)
Related Terms (Associative)
Frigid regions (Vcrf)