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Progress in Earth and Planetary Science
Fig. 7 | Progress in Earth and Planetary Science

Fig. 7

From: Continuous multi-component MAX-DOAS observations for the planetary boundary layer ozone variation analysis at Chiba and Tsukuba, Japan, from 2013 to 2019

Fig. 7

HCHO-NO2 correlations for Chiba (squares) and Tsukuba (circles). Each data point represents the median value of monthly means using data collected over (left) 12, (middle) 8 (March to October), and (right) 3 months (June to August). Error bars represent 67% ranges. Different years are shown in different colors. The solid and dashed lines represent constant HCHO/NO2 concentration ratios at values given on the respective lines

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