Northwest Africa. East Europe and Asia are also
seen as significant dust source regions, and to a
lesser degree, western USA and central Australia.
For Particulate Organic Matter, the spatial distribution of the column burden is similar to that of
black carbon, but with a significantly higher column burden of 3 mg m
À2 . Peak values approach
50 mg m
À2 and the main source regions are the
southwestern African Continent, South America,
Europe, India and China, northern Australia, and
500.0000
mg/m^2
100.0000
25.0000
5.0000
1.0000
0.2500
0.0500
0.0100
180
−180
−45
0
Latitude
45
90
−120
120
−60
60
0
Longitude
AEROCOM_MEDIAN Mean: 5.05818E+01 mg/m^2
50.0000
10.0000
mg/m^2
0.0010
0.0050
0.0250
0.1000
0.5000
2.5000
180
−180
−45
0
Latitude
45
90
−120
120
−60
60
0
Longitude
AEROCOM_MEDIAN Mean: 3.60902E–01 mg/m^2
500.0000
mg/m^2
100.0000
25.0000
5.0000
1.0000
0.2500
0.0500
0.0100
180
−180
−45
0
Latitude
45
90
−120
120
−60
60
0
Longitude
AEROCOM_MEDIAN Mean: 2.55353E+01 mg/m^2
50.0000
10.0000
mg/m^2
0.0010
0.0050
0.0250
0.1000
0.5000
2.5000
180
−180
−45
0
Latitude
45
90
−120
120
−60
60
0
Longitude
AEROCOM_MEDIAN Mean: 2.90209E+00 mg/m^2
mg/m^2
500.0000
100.0000
25.0000
5.0000
1.0000
0.2500
0.0500
0.0100
180
−180
−45
0
Latitude
45
90
−120
120
−60
60
0
Longitude
AEROCOM_MEDIAN Mean: 3.53260E+00 mgS/m^2
mg/m^2
50.0000
10.0000
0.0010
0.0050
0.0250
0.1000
0.5000
2.5000
180
−180
−45
0
Latitude
45
90
−120
120
−60
60
0
Longitude
t
l
a
S
-
a
e
S
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t
a
h
p
l
u
S
t
l
a
s
-
a
e
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-
n
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r
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t
t
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c
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a
g
r
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C
k
c
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A
l
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T
AEROCOM_MEDIAN Mean: 1.35300E+01 mg/m^2
Aerosol in Global Atmosphere, Fig. 7 Median global
distribution of aerosol column mass, total and per aerosol
species, derived from 10 AEROCOM models for the year
2000. (Copyright European Geophysical Union 2006.
Reprinted from [57])
254
Aerosol in Global Atmosphere