te eal oe a
70 b
THEORETICAL STRATOSPHERIC INVENTORY
UPPER CURVE 7 = 10 YRS.
LOWER CURVE 7’= 5 YRS.
60 LE
e
Oe
50
c
>
a4
©
=
a
uw
>
=
2
30
}—
w“
r
ae
‘20 {
yo
0
FIGURE 6
LSet
1953
1954:
1955
1956
[
1957
L
1958
1959
1960
1961
1962