Figure 3-9: Latitude and altitude distribution of annually
averaged increase of surface area density of sulfate aerosol (in Ám2 cm-3),
calculated with AER 2-D model assuming a 1992 aircraft fuel-use scenario,
0.4 g S/kg fuel, and 5% conversion of sulfur emissions into new particles
with a radius of 5 nm (adapted from Weisenstein et al., 1997).