Sentences with phrase «dry soils underlain»
With an average annual air temperature of -2.2 F and an average precipitation of 3 - 50 mm per year, the McMurdo Dry Valleys of Antarctica are dominated by dry soils underlain by permafrost.
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«There are also big ponds that might dry out over large areas, as well as soils underlain by a network of ice wedges where warming could lead to a thermokarst, or a slumping, of the land surface as permafrost thaws and the ice wedges melt.