850704.fig.006a
(a)
850704.fig.006b
(b)
850704.fig.006c
(c)
850704.fig.006d
(d)
Figure 6: Meteorological control of the Sahara dust transportation (2.5 degrees by 2.5 degrees): (a) Frequency of dust aerosols occurrence overplotted with horizontal wind, (b) averaged dust layer top height (AGL), (c) wind speed and direction (1000 mb~850 mb), and (d) vertical velocity (1000 mb~850 mb).