Geoscience Reference
In-Depth Information
4. Results
4.1.
Temporal variations of observed and modeled gases
pollutants and PM
10
concentrations in Korea
Figure 3 shows the time variation of the modeled and observed daily mean
SO
2
,NO
2
,O
3
,andPM
10
concentrations averaged over South Korea for the
period from 1 to 31 March 2002. The model simulates quite well the tem-
poral variations of observed concentrations. However, the model underesti-
mates the observed NO
2
concentration significantly. This might be mainly
due to the underestimation of NO
x
emission rate. The simulated SO
2
,O
3
,
and PM
10
concentration closely matches observations in South Korea. The
PM
10
concentration during the Asian dust period from 19 to 22 March 2002
Fig. 3. Time series of daily mean observed (-o-o-) and modeled concentrations of
SO
2
(ppb), NO
2
(ppb), O
3
(ppb) and PM
10
(
m
3
)(-
-
-).
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g
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