Meteorological Patterns Associated with Intense Saharan Dust Outbreaks over Greece in Winter

Figure 3

Air mass back trajectories at 4000 m, 1500 m, and 500 m for February 4, 2009 (a), February 6, 2009 (b), March 5, 2009 (c), and March 6, 2009 (d).

(a)

(b)

(c)

(d)