Atmospheric ozone and carbon monoxide mixing ratios measured during the MR20-05C cruise of R/V Mirai

During the MR20-05C Arctic cruise of R/V Mirai, atmospheric ozone (O3) and carbon monoxide (CO) measurements were continuously conducted using a UV ozone analyzer (Model 205, 2B Tech) and an IR CO analyzer (Model 48iTLE, Thermo) located in the Research Information Center, to which ambient air was drawn through ~20-m-long Teflon tubes. See the header of the data files for more details. It is recommended to contact the investigators for any use. Reference about QA/QC: Kanaya, Y. et al., Ozone and carbon monoxide observations over open oceans on R/V Mirai from 67S to 75N during 2012 to 2017: testing global chemical reanalysis in terms of Arctic processes, low ozone levels at low latitudes, and pollution transport, Atmos. Chem. Phys., 19, 7233-7254, https://doi.org/10.5194/acp-19-7233-2019, 2019.