Tab. III.1 Change in the share [%] of dispersion conditions in the year 2014 in comparison with the average for the period 2007–2013 in the CR and agglomerations


Dispersion conditions
 [%]
Year Month
1 2 3 4 5 6 7 8 9 10 11 12
Czech Republic
Good -5.0 -11.4 12.9 -18.9 -23.3 2.8 7.6 -3.2 -2.8 -11.9 -10.9 -13.8 13.4
Moderately poor 4.7 11.4 -4.8 8.3 23.3 -2.3 -7.6 3.7 -0.5 3.8 7.7 22.4 -9.7
Poor 0.4 0.0 -8.1 10.6 0.0 -0.5 0.0 -0.5 3.2 8.1 3.2 -8.6 -3.7
Agglomeration of Prague
Good -9.0 -21.5 4.7 -15.2 -28.1 -10.1 18.6 -12.4 0.5 -17.6 -13.1 -24.8 11.5
Moderately poor 7.3 14.2 1.8 3.7 19.0 11.1 -17.6 15.7 -2.8 11.9 8.2 14.3 7.4
Poor 1.8 7.3 -6.5 11.5 9.0 -0.9 -1.0 -3.2 2.3 5.7 5.0 10.5 -18.9
Agglomeration of Brno
Good -1.2 -3.9 -1.4 -2.3 -20.5 5.5 2.4 3.7 1.4 -13.8 -9.5 -2.4 25.3
Moderately poor 0.6 -2.4 6.4 -4.1 21.0 -5.5 -2.4 -2.3 -3.2 -4.8 7.7 12.9 -14.7
Poor 0.6 6.4 -5.0 6.5 -0.5 0.0 0.0 -1.4 1.8 18.6 1.8 -10.5 -10.6
Agglomeration of Ostrava/Karviná/Frýdek-Místek
Good -3.6 -1.7 18.5 -14.7 -11.9 5.5 2.4 -3.7 12.9 -11.9 -10.4 -27.1 -0.5
Moderately poor 0.9 3.6 -11.5 7.4 14.3 -4.6 -1.9 2.3 -9.7 2.4 6.8 6.7 -5.1
Poor 2.7 -1.9 -7.0 7.4 -2.4 -0.9 -0.5 1.4 -3.2 9.5 3.6 20.5 5.5
Note: The changes of the share by more than ± 5 % are highlighted. The data are based on daily averages of the ventilation index calculated by the NWP model ALADIN.