100,000
TTF
ye
r
—=—_*
Tv
T
Yr
YS
HEIGHT IN FEET
80,000
e
(5)
—
Ang,
eee 2
(
60,000 L
pelOM
L
(5)
°50 +”
v7 (4)
7
63
(6) > 5)"
o"f5q
=«(!9
7
(3)
6%
a”
<
Oo
» 3
5
a
-
LJ
z
<
(2)
3
~O
oO
Zz
dj
-IN
aa
2
=
=<
ON
oO
wn
=°
w
<
a
40° 30° 20°
NORTH
:
a
.
/00
\
~
Nag
\.
‘N
| 200
MG 300
3 500
gq
L
10°
4100
\‘
=
ae
uJ
moa gt
90° 60°
e8
(3)
3
LC
(6)
*(2
40,000 =D
en
20,000
03
(4)
(4)
-
(5)
eax ™—~—~—CSCS SN
PRESSURE IN MILLIBARS
9215
O°
gd
10°
LATITUDE
20° 30° 40°
1000
60° 90°
SOUTH
Fig. 1 -- Average concentration of carbon-14 in the stratosphere, April to
September, 1955.
27