Geoscience Reference
In-Depth Information
Figure 20.9
Northern edge of the Bodele Depression showing the diatomite surface.
20.2.2
Saharan Empty Quarter
ure 20.10). Dust loadings are at a minimum in this region
during the boreal winter. Owing to its remoteness, much
of what is known about this region comes from satellite
observations. The precise location of dust sources in the
SEQ differs markedly between satellite data sets. On the
During the boreal summer months, global dust produc-
tion peaks in the Saharan Empty Quarter (SEQ) of North-
ern Mail, southern Algeria and Eastern Mauritania (Fig-
Monthly/seasonal mean TOMS AI
Jun - Jun 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989
-20
0
20
-40
40
30
20
10
0
