1964
DOI: 10.2151/jmsj1923.42.1_43
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Meteorological Feature of Cosmic Ray Produced Beryllium-7

Abstract: All the data of beryllium-7 in air and rain produced by the interaction of cosmic ray with atmospheric constituents are surveyed from the viewpoint of their meteorological application as a tracer material. It is found that (1) the seasonal variation in concentration of Be7 in rain is similar to that in air on the ground, (2) the similar but timely shifted seasonal variation which has a peak concentration in winter is evident in the upper atmosphere, and (3) the latitudinal distribution in Be7 deposition which … Show more

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Cited by 6 publications
(3 citation statements)
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“…And, the concentration in high latitudes (60 90 ) is about 20% lower than that in low latitudes. 32) All these facts clearly indicate that the maximum 7 Be concentration in atmosphere appears in middle latitudes. Yearly variation of 7 Be concentration in the atmosphere observed in Dazaifu (33 N), obtained by NARAZAKI, 33) is shown in Fig.…”
Section: Tablementioning
confidence: 89%
“…And, the concentration in high latitudes (60 90 ) is about 20% lower than that in low latitudes. 32) All these facts clearly indicate that the maximum 7 Be concentration in atmosphere appears in middle latitudes. Yearly variation of 7 Be concentration in the atmosphere observed in Dazaifu (33 N), obtained by NARAZAKI, 33) is shown in Fig.…”
Section: Tablementioning
confidence: 89%
“…produits par les rayonnemente cosmiques, ont Bgalement 6t6 utilis6s pour d6-terminer les temps de s6jour dans la troposphere (Murayama, 1964 Junge (1963b) a, pour sa part, calcul6 des valeurs thhoriques de t, en considerant uniquement les phenomanes de lessivage (rainout). I1 a trouv6 (en fonction des hauteurs moyennes de pluie, des densites de nuages et dc la taille des particules) des temps de sejour compris entre quelques jours dans les basses couches et quelques dizaines de jours en altitude.…”
Section: B Eliment Cosmoge'nniquesunclassified
“…produits par les rayonnemente cosmiques, ont Bgalement 6t6 utilis6s pour d6terminer les temps de s6jour dans la troposphere (Murayama, 1964). Leurs taux de production restent dans un rapport constant et augmentent fortement avec l'altitude (LAL et al 1958); leur formation a donc lieu principalement dans la haute troposphere et la basse stratosphere.…”
Section: B Eliment Cosmoge'nniquesunclassified