Cosmic Ray-Produced Radionuclides as Tracers of Atmospheric Precipitation Processes

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Science  12 Jan 1968:
Vol. 159, Issue 3811, pp. 189-192
DOI: 10.1126/science.159.3811.189


Through recent developments in instrumental analysis it is now possible to measure with good precision the rainwater concentrations of five short-lived radionuclides which are produced by cosmic ray spallation of atmospheric argon. These measurements provide a method for studying the in-cloud nucleation times and aerosol scavenging efficiencies, and promise to provide information onshort-term processes which occur in rain and snow formation.