90%
A
Rh'2 CONCENTRATION ABOVE 194 km
a
O 4-60
x
o
\|0-60
6
12-60
A 5-60
+ {1-60
* 9-60
vy
Xx
6-60
|-6l
TO
0
©
t., cu, meter
oO
V
60"
oO”
“9
AS
4.0r
ve
x
oO
©
A
v
o4 G
O
Q
y
x
+
e
3.0r
Oo
O
x
20+
A
A
Lok
,
0
0
x
|
50°
L
4G
-j
30°
l
20°
SOUTH
AL
ioe
Oo
x A.
p
E
{
A
x
C)
o
7
l
ioe
L
20°
1
L.
30°
40°
NORTH
Fig, 4 -- Concentration as a function of latitude
a
oO
+
60
210 DAY rn? :
DPM
7/12/58
corrected ‘)
8.0
l
50°
jl
60°
70°