Tritium fallout in southern Australia and its hydrologic implications

摘要: The tritium concentration in rainfall collected at 11 sampling stations southern Australia has been determined, for the years 1966–1970. concentration, which generally is of magnitude 30 to 50 atoms per 1018 all hydrogen species, shows well-defined peaks spring and summer rainfall, increases significantly locations towards interior continent. level still considerably higher than natural abundance produced by cosmic ray bombardment stratosphere, but after reaching a peak, it now declining presumably will approach pre-bomb about 6 T.U. The purpose analyses obtain input functions water entering underground storages, as necessary first step using groundwater determine residence times inventory resources.