Geoscience Reference
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(a)
(b)
(c)
(d)
(e)
Fig. 3. (a) GOES-9 imagery of dust concentration for 04:00 UTC February 2, 2005.
(b) As in (a), except for 19:00 UTC. (c)-(e) Synoptic observations reporting dust includ-
ing lowest visibility (km) on February 2, 2005.
