Geoscience Reference
In-Depth Information
Table 3.
Conditions for raised dust in ADAM (A1) and ADAM2 (A2).
Threshold
wind speed Upper limit
Prec.
Top soil
Friction
(m s
−
1
)
temp. (
T
g
◦
C)
of RH (%)
(mm)
velocity
Soil
type
A1
A2
A1
A2
A1 A2 A1
A2
A1
A2
• T
g
≥−
2
◦
C:
Full emission
Gobi
9.5
9.5
60
60
None
Sand
7.5
7.5
35
45
None
—
•−
2
≤ T
g
< −
6:
—
U
∗
/
1
.
4
Emission reduction
of 1/3
Loess
6.0
6.0
30
40
None
• T
g
< −
6:
No emission
Mixed 9.2
9.2
45
50
None
Fig. 5.
As in Fig. 2 except for the results of ADAM2.
