 Problem #1  The original Sagebrush simulation showed a slight underprediction for the highest concentrations, those on the arc located nearest to the source. Is this related to one of the model configuration options?
 Hint 
The plume near the source is much narrower than the width of the concentration grid cell. Edit and run the batch file conc_local.bat.
 Solution  Scatter Diagram and Statistical Results.
 Problem #2  Recompute problem #1, but this time, in addition, reduce the vertical depth of the concentration grid from 25 to 10 m.
 Hint  Edit and run the batch file conc_local.bat.
 Solution  Scatter Diagram and Statistical Results.
 Problem #3  Recompute problem #2, but this time, use the STILT mixing options idsp and wvert.
 Hint  Edit and run the batch file conc_local.bat.
 Solution  Scatter Diagram and Statistical Results.
