156 
Figure 2: same as figure 1 but for 8y=60 : 
Figure 1: comparison of M l Pinatubo aerosol observed radiance 
with King aerosol model simulation 
Figure 3: "Geometric" composite of the optical thickness observed in channel 1 of AVHRR before and after the stratospheric 
aerosol layer formation. 
Optical thickness 
Day 172 
{Day 2081