Fig. 1
Schematic of the CALIPSO orbits following the elongated major axis of Sweden. The red dots mark the most populated cities in southern Sweden.
Fig. 2
Seasonal mean of the frequency distribution of the mean aerosol layer height with latitude.
Fig. 3
Probability distribution of: (a) aerosol layer optical depths; (b) number of distinctive aerosol layers; and (c) total column aerosol optical depths for Southern and Northern Sweden.
Fig. 4
The composites of wind strength and direction at 850 hPa for the four cases: (a) N-Easterly; (b) S-Easterly; (c) N-Westerly; and (d) S-Westerly.
Fig. 5
(a) The vertical distribution of aerosols; (b) the vertical separation in the aerosol layers with respect to the wind directions; (c) cumulative distribution of the aerosols with height; (d) normalised frequency of the distribution of layer AOD; (e) the frequency of occurrence of the number of aerosol layers; and (f) normalised frequency of depolarisation ratio for the four selected wind directions (denoted by the different colours) for southern Sweden.