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Table 4

Simulated average O3 in CTRL run and sensitivity runs (see Table 3). Modeled ozone is averaged over observed plumes along the flight track of 19 July. The units are in ppbv, and the percentages indicate the variation with respect to the CTRL run. The distance from the platforms and altitude where WRF-Chem O3 is averaged are also reported. DOI: https://doi.org/10.1525/elementa.124.t4

Distance (km)Altitude (m)CTRL (ppbv)T1 (ppbv)T2 (ppbv)T3 (ppbv)T4 (ppbv)

 
ÅSGARD C 13 150 26.9 28.6 (+6.3%) 25.2 (–6.3%) 27.9 (+3.7%) 27.6 (+2.6%) 
HEIDRUN 95 24.5 27.8 (+14%) 21.6 (–12%) 26.1 (+6.5%) 24.5 (–) 
240 26.6 28.1 (+5.6%) 25.3 (–4.9%) 27.4 (+3.0%) 26.7 (+0.4%) 
13 95 25.9 27.5 (+6.2%) 24.2 (–6.6%) 26.8 (+3.5%) 26.0 (+0.4%) 
17 240 26.9 27.6 (+3.8%) 25.3 (–4.9%) 27.2 (+2.3%) 26.6 (–) 
36 95 27.4 27.2 (–0.7%) 26.9 (–1.8%) 27.6 (+0.7%) 27.5 (+0.4%) 
NORNE 1.7 95 28.7 29.6 (+3.1%) 27.7 (–3.5%) 29.1 (+1.4%) 28.7 (–) 
240 29.2 29.7 (+1.7%) 28.7 (–1.7%) 29.5 (+1.0%) 29.2 (–) 
7.3 150 29.2 29.7 (+1.7%) 28.5 (–2.4%) 29.5 (+1.0%) 29.3 (+0.3%) 
10 95 29.3 29.7 (+1.4%) 28.6 (–2.4%) 29.6 (+1.0%) 29.4 (+0.3%) 
10 240 29.5 29.9 (+1.4%) 29.0 (–1.7%) 29.8 (+1.0%) 29.6 (+0.3%) 
Distance (km)Altitude (m)CTRL (ppbv)T1 (ppbv)T2 (ppbv)T3 (ppbv)T4 (ppbv)

 
ÅSGARD C 13 150 26.9 28.6 (+6.3%) 25.2 (–6.3%) 27.9 (+3.7%) 27.6 (+2.6%) 
HEIDRUN 95 24.5 27.8 (+14%) 21.6 (–12%) 26.1 (+6.5%) 24.5 (–) 
240 26.6 28.1 (+5.6%) 25.3 (–4.9%) 27.4 (+3.0%) 26.7 (+0.4%) 
13 95 25.9 27.5 (+6.2%) 24.2 (–6.6%) 26.8 (+3.5%) 26.0 (+0.4%) 
17 240 26.9 27.6 (+3.8%) 25.3 (–4.9%) 27.2 (+2.3%) 26.6 (–) 
36 95 27.4 27.2 (–0.7%) 26.9 (–1.8%) 27.6 (+0.7%) 27.5 (+0.4%) 
NORNE 1.7 95 28.7 29.6 (+3.1%) 27.7 (–3.5%) 29.1 (+1.4%) 28.7 (–) 
240 29.2 29.7 (+1.7%) 28.7 (–1.7%) 29.5 (+1.0%) 29.2 (–) 
7.3 150 29.2 29.7 (+1.7%) 28.5 (–2.4%) 29.5 (+1.0%) 29.3 (+0.3%) 
10 95 29.3 29.7 (+1.4%) 28.6 (–2.4%) 29.6 (+1.0%) 29.4 (+0.3%) 
10 240 29.5 29.9 (+1.4%) 29.0 (–1.7%) 29.8 (+1.0%) 29.6 (+0.3%) 

1. Run with NEA emissions (see Table 2).

2. No emissions.

3. CTRL with NOx facilities emissions doubled.

4. CTRL with NOx facilities emissions reduced by a factor 2.

5. CTRL with NMVOC emissions increased 5 times.

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