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Table 3.
Model-predicted maximum ozone concentrations (ppb) at South Texas urban
sites.
Perturbed temperatures
+2 C+ C+ C+ C+ C
NNA sub
CAMS
Base
Future
domain
case
case
Austin
03
81.36
76.41
81.41
82.86
84.1
85.19
86.17
38
82.07
77.12
82.62
84.36
85.88
87.24
88.51
San Antonio
23
88.86
81.6
87.15
88.77
90.2
91.51
92.71
58
94.43
85.52
91.04
92.57
93.91
95.11
96.22
59
70.06
64.58
68.86
69.66
70.3
70.85
71.33
Corpus Christi
04
71.82
67.21
70.7
71.83
72.85
73.75
74.55
21
76.79
70.84
74.77
76.11
77.3
78.37
79.34
Victoria
87
76.29
71.98
76.34
77.35
78.21
78.96
79.63
Fig. 4.
Spatial pattern of ozone exceedances > 84 ppb.
6 C temperature perturbation, which was chosen as a representative case
for the future scenario. The maximum impact is noted downwind of the
San Antonio region ( 94 ppb), and is shown in Fig. 4. This is followed
by northwest Austin and the counties north-east of Victoria, which are
affected by transboundary pollution from Houston. Corpus Christi is less
affected compared to the inland urban regions due to sea-breeze influence
on air pollutants. In the case of the extreme 6 C perturbed scenario, the
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