Spring Peak of Strontium-90 Fallout.
An increasing trend of Sr(90) concentration in rain observed at Fayetteville, Ark., after November 1959, indicates that the seasonal and global movements of stratospheric air masses, such as described by Brewer (I) and Dobson (2), play an important role in causing the spring peaks of the Sr(90) fallout.
Kuroda
P K
PK
Hodges
H L
HL
Fry
L M
LM