_
—
_7*
]
3S
uw
4
e--_L_iig
=
ALTITUDE, 1000 FT
6S°N
JL
a
JULY 24, 1962
30
A
1¢°
10°
L
DEC. 7, 1962
J
!
104
10°
10?
103
NUCLIDE ACTIVITIES, DIS/MIN PER 1000 SCF
(CORRECTED TO OCT. 15, 1961)
!
L
104
105
Fig. 18—Vertical distribution of activation products and 9Sr.
T
65°N
70
— 9
4
124
Sb
_
T
uh
\
ger
:us
S 60
= 50K
905,
|d
|
oo
!,
qa
oF
DEC.7,1962 4
-
f
é
40K
|
10°?
l
104
T
TT
eo
1
7
Sb
\
;
4
4
7
&”
APR. 16, 1963 7
_t
10° 10
I
124
i
|
/
t
A
10°
{Fe
\
|
5
x
34 An
-®°
On]
10
4
1¢4
i
10°
io
NUCLIDE ACTIVITIES, DIS/ MIN PER 1000 SCF
(CORRECTED TO DEC. 31, 1962)
Fig. 19—Vertical distribution of activation products and *%Sr.
it appears
reasonable to attribute these nuclides to the high-yield
October 1961 events. By December 1962 the vertical distribution of the
activation products at 65°N was more uniform. There is evidence to
indicate that this uniformity had been produced by additional injections
of these nuclides into the lower polar stratosphere during the 1962
U.S.S.R. test series.’ One or more events during the December 1962
test series’ produced large quantities of '*4Sb which were injected into
the polar stratosphere above 55,000 ft. The new vertical profile for this
nuclide, found by sampling during 1963, is illustrated in Fig. 19. Asa
result of the 1962 injections, *‘Mn and *Fe could not be used after
about September 1962 as unique tracers for the high-yield 1961 events,