permafrost

Noun

Meaning

ground that is permanently frozen

Source: WordNet

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Examples

Alpine tundra is distinguished from arctic tundra in that alpine tundra typically does not have permafrost, and alpine soils are generally better drained than arctic soils. Source: Internet

An interesting type of temporary earth dam occasionally used in high latitudes is the frozen-core dam, in which a coolant is circulated through pipes inside the dam to maintain a watertight region of permafrost within it. Source: Internet

According to Turetsky, less than 20 percent of permafrost can be considered susceptible to thermokarst. Source: Internet

Both Polar and Nether-Polar Urals are typically Alpine; they bear traces of Pleistocene glaciation, along with permafrost and extensive modern glaciation, including 143 extant glaciers. Source: Internet

But finds from sites with permafrost show rich and brightly coloured textiles, leatherwork and woodwork, not to mention tattooing. Source: Internet

Based on average latitudinal gradients of air temperature, an average northward displacement of the southern permafrost boundary by 50-to-150 km could be expected, under equilibrium conditions, for a 1 °C warming. Source: Internet

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