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Mean tropospheric residence time of cosmic-ray-produced beryllium 7 at North temperate latitudes

Journal Article · · J. Geophys. Res.; (United States)
By means of published data on the concentration of /sup 7/Be in the troposphere between 30/sup 0/ and 75/sup 0/N, together with concentrations measured over the Netherlands, the tropospheric content of /sup 7/Be has been estimated. Comparison of this value with published rates of deposition of /sup 7/Be in the same latitude band shows that the mean tropospheric residence time of this nuclide is probably not less than 22 days and is more likely of the order of 35 days. This is in agreement with previous estimates and not in agreement with the value of 1 week or less proposed recently by Martell and Moore.
Research Organization:
Medical Biological Laboratory TNO, Rijswijk Z. H.,Netherlands
OSTI ID:
6950463
Journal Information:
J. Geophys. Res.; (United States), Journal Name: J. Geophys. Res.; (United States) Vol. 83:C6; ISSN JGREA
Country of Publication:
United States
Language:
English