Aerosols
SCENGEN 4.1 includes one set of GCM patterns that describe the response
of regional climate to sulfate aerosol forcing. These results are from the
UIUC GCM. If 'Aerosol effects' is selected above the list of
GCMs on the Models window, then the displayed scenarios will include the
regional effects of sulfate aerosol forcing. In this case, the global-mean
temperature change displayed on the main SCENGEN screen will result from
the combined effect of greenhouse gas and aerosol forcing (otherwise this
global temperature change value will reflect only greenhouse gas forcing).
The default setting when first entering SCENGEN does not include aerosol
effects.