Straight line plume transport is assumed to all downwind distances. An optional treatment for calm winds is included for short term modeling. Speed Vertical wind speed is assumed equal to zero. Six stability classes are used. Six stability classes are used.
Perfect reflection is assumed at the ground.
Time constant is input by the user. Bowers, J.F., A.J. Anderson and W.R. Hargraves, 1982. Environmental Protection Agency, 1992. Comparison of a Revised Area Source Algorithm for the Industrial Source Complex Short Term Model and Wind Tunnel Data. Environmental Protection Agency, 1992.