The lowest degree of complexation
(5%) was observed at approximately 5 km and then the complexation
increased steadily up to 14 km because the model temperature
is decreasing significantly (dropping to 209 K). In Northern and
Southern Hemisphere locations, where the annual variation in
water vapour and temperature are more substantial, complexation
reduction with each vertical level is a more gradual process (Fig. 8).
Although the concentration of RO2.H2O is higher in each vertical
level of the troposphere in Cape Grim compared with Mace Head,
the degree of complexation is found to be lower at Cape Grim
because of higher temperatures encountered.