High-time resolved radon-progeny measurements in the Arctic region (Svalbard Islands, Norway): results and potentialities

摘要: Abstract. The estimation of radon progeny in the Arctic region represents a scientific challenge due to required low limit detection in consideration limited emanation associated with permafrost dynamics. This preliminary study highlighted, for first time above 70 ∘  N, possibility monitor region with a higher resolution. composition offered the opportunity identify air masses dominated by long-range transport, in presence or absence near-constant instead long- and short-lived progenies. Furthermore, different ratio between thoron progenies evidenced contributions local emissions atmospheric stability. Two periods were defined accordance the permafrost dynamics at ground several accumulation windows were recognized coherently meteo-climatic conditions occurring study site.