CN 
t 
x 
3 
E 
9 
~ 
= 
€ 
Lu 
Q 
z 
X 
[e 
« 
ac 
>= 
x 
“mn 
  
  
Wavelength = 0.45 um 
Solar Zenith Angle = 65.7° 
Albedo = 0.0 
Albedo = 0.2 
Albedo = 0.4 
Experiment 
*Note that surface albedo during measurements was not 
specified quantitatively, but from description of area 
we believe it to be approximately 0.2. 
LL. | LL | 
  
  
-80 -60 -40 -20 0 20 
ZENITH SCAN ANGLE (Degrees) 
DEPENDENCE OF SKY RADIANCE 
ON ZENITH ANGLE IN SOLAR PLANE 
FOR CLEAR SKY CONDITIONS 
Figure 9 
21 
711RO-5—-520