permafrost

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Related to Continuous permafrost: Discontinuous permafrost, Sporadic permafrost

permafrost

permanently frozen ground on which only a thin layer thaws in the summer, as in the high Arctic and Antarctic.
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References in periodicals archive ?
We hypothesized that the discontinuous permafrost region of Alaska is more at risk of thaw subsidence than the continuous permafrost region.
Even in the area of continuous permafrost, the sediment may remain unfrozen under thick layers of water, such as lakes or rivers; this formation is known as talik.
Old Crow Flats is the traditional territory of the Vuntut Gwitchin First Nation (VGFN) and is one of northwestern Canada's largest wetlands within a region of continuous permafrost.
Influence of climate and terrain on ground temperatures in the continuous permafrost zone of northern Manitoba and Keewatin District, Canada.
2006), whereas in areas underlain by continuous permafrost, lakes show signs of expansion (Smith et al.
2005) reported an increase in the continuous permafrost of Siberia, but this study was based on only two dates (1973 and 1998) of relatively coarse resolution satellite imagery.
Fluvial processes in the High Arctic have attracted considerable research attention because of the unique conditions of intense, short-lived discharge during spring snowmelt (Church, 1972; Woo, 1983; Clark, 1988), poorly vegetated catchments with the potential for high levels of sediment erosion (Woo and McCann, 1994), and the sensitivity of continuous permafrost regions to climate variability (Woo et al.

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