Relating Small-Scale Emission and Concentration Variability in Air Quality Models - Meteorological and Air Quality Models for Urban Areas - page 13

Fig. 2.4 Position of ten
virtual sampling locations
where time profiles of the
concentrations for the two
emission cases have been
extracted
Fig. 2.5 Time profiles of the instantaneous concentrations sampled at 12.5m and at the 10 loca-
tions (Fig. 2.4). The thick black lines show the average concentration obtained by the FVM
model. The shading is the variance calculated with the new formulation. ( Upper ) 64% Emission
Surface/Grid-Cell Surface case. ( Lower ) 16% Emission Surface/Grid-Cell Surface scenario (See
also Colour Plate 5 on page 173)