Abstract
Observations in central Alaska indicate that radon concentrations in surface soils over discontinuous permafrost seem to correspond with frozen-ground distribution. These observations were made to determine if radon measurements might provide a method for obtaining information on permafrost distribution. Radon levels from an area of silty soils varied from 14 to 348 pCi 1 −1 and averaged 51 pCi 1 −1 where the top of permafrost was within a meter of the ground surface, compared to an average of 190 pCi 1 −1 where permafrost was absent.
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