frost table

frost table

[′frȯst ‚tā·bəl]
(geology)
An irregular surface in the ground which, at any given time, represents the penetration of thawing into seasonally frozen ground.
References in periodicals archive ?
2) Frost table depth in the middle of the pond on 12 August 2005.
Frost table development is similar in 2005 and 2006 but shallower than at other sites, a pattern that similarly emerged in 2004 when a pond survey was conducted across this wetland (Young and Abnizova, 2008).
The monitoring consisted primarily of regular measurements of water and frost tables.