permafrost

(redirected from Discontinuous permafrost)
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Related to Discontinuous permafrost: Sporadic permafrost

per·ma·frost

 (pûr′mə-frôst′, -frŏst′)
n.
Permanently frozen subsoil, occurring throughout the Polar Regions and locally in perennially frigid areas.

permafrost

(ˈpɜːməˌfrɒst)
n
(Physical Geography) ground that is permanently frozen, often to great depths, the surface sometimes thawing in the summer
[C20: from perma(nent) + frost]

per•ma•frost

(ˈpɜr məˌfrɔst, -ˌfrɒst)

n.
(in arctic or subarctic regions) permanently frozen subsoil.
[1943; perma (nent) frost]

per·ma·frost

(pûr′mə-frôst′)
A layer of permanently frozen subsoil, reaching depths up to 5,000 feet (1,524 meters). Permafrost is found throughout most of the polar regions.

permafrost

Permanently frozen subsoil.

permafrost

Permanently frozen ground found in polar and subpolar zones.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.permafrost - ground that is permanently frozenpermafrost - ground that is permanently frozen  
land, soil, ground - material in the top layer of the surface of the earth in which plants can grow (especially with reference to its quality or use); "the land had never been plowed"; "good agricultural soil"
Translations

permafrost

[ˈpɜːməfrɒst] Npermagel m

permafrost

permafrost

[ˈpɜːməˌfrɒst] npermafrost m inv
References in periodicals archive ?
Much of this summer's field work and office analysis is aimed at better identifying soil conditions, terrain, hillsides, vegetation, geology, safety, and environmental concerns as Alaska LNG continues to make decisions not only on waterbody crossings but also pipeline specifications to match different ground conditions such as discontinuous permafrost that would put additional stress on sections of pipe.
The installation and use of ground source heat pumps (GSHPs) for heating in Interior Alaska has substantially increased in recent years, raising questions about the efficiency and long-term performance of heat pump installations in areas of discontinuous permafrost and low annual temperatures.
A tricky challenge for moving Alaska's North Slope natural gas to market is designing a pipe that will remain safely buried for decades in hundreds of miles of chilled earth, permafrost and discontinuous permafrost.
Roads, buildings and other infrastructure in discontinuous permafrost, which tends to be warmer, and along the Arctic coast, where salt content means small temperature changes can turn ice to ground water, are most vulnerable to damage.

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