Variations in the 7Be content in the ground layer of the atmosphere at middle latitudes

Data from measurements of the volume activity 7 Be in the ground layer of the atmosphere, taken at the middle latitudes over a period of five and a half years, are discussed. The studies allowed us to determine that the course of changes in the volumetric activity (VA) of 7 Be over time is a superpo...

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Bibliographic Details
Published in:Moscow University chemistry bulletin 2009-10, Vol.64 (5), p.317-321
Main Authors: Petrova, T. B., Mikljaev, P. S., Vlasov, V. K., Afinogenov, A. M., Kirjukhin, O. V.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
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Summary:Data from measurements of the volume activity 7 Be in the ground layer of the atmosphere, taken at the middle latitudes over a period of five and a half years, are discussed. The studies allowed us to determine that the course of changes in the volumetric activity (VA) of 7 Be over time is a superposition and interaction of three kinds of fluctuations: short-period irregular, caused by meteorological factors; seasonal, associated with 7 Be entering the troposphere from the stratosphere; and long-term, determined by changes in the Galaxy’s cosmic ray flux.
ISSN:0027-1314
1935-0260
DOI:10.3103/S0027131409050150