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Progress in Earth and Planetary Science
Fig. 6 | Progress in Earth and Planetary Science

Fig. 6

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. 6

Updated results of a trend analysis using OMI tropospheric NO2 VCD data by Irie et al. (2016). Temporal variations in annual mean tropospheric NO2 burdens over the entire national area of China (red), Japan (green), and South Korea (blue) are shown. The burdens were estimated by multiplying the annual averages of OMI tropospheric NO2 VCD data over the entire national area by the area of each country

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