All of the programs on this disk calculate the areas downwind from a chemical
release in which the integrated dose exceeds a certain value in mg*min/m**3.
The differences are as follows:

GAUSS:     All agent released as aerosol of given deposition velocity;
GAUSS2:    Agent not released as aerosol is released as vapor with vd = 0;
GAUSSBAT:  Run a large number of GAUSS cases at once;
GAUSBAT2:  Run a large number of GAUSS2 cases at once;
GAUSLINE:  Line source rather than point source, 100% aerosol.
