10,000 FEET
30,00050,000
FEET
TROPOSPHERE
40,00060,000
FEET
TROPOPAUSE ————- A
STRATOSPHERE
GROUND
GENERALIZED CONCEPTS:
.
i
STEM
-
25
MEAN OF
PARTICLE
SIZES
“om
awe
PERCENTAGE
of
TOTAL
DISTRIBUTION OF ACTIVITY
DIMENSIONS OF CLOUD AND STEM
Figure 1