Mixing ratios of greenhouse gases for sampled air on the north Pacific Ocen in MR22-06C

Air samples were corrected into 40 stainless-steel flasks on MR22-06C cruise. The collected air samples were analyzed for the concentrations of CO2, O2 (O2/N2), Ar (Ar/N2), CH4, CO, N2O, SF6 and H2 and the isotopic ratios of CO2, CH4, N2, O2 and Ar.The CO2, CH4, CO, N2O, SF6, H2 concentrations were determined against Tohoku Univ. primary standard gases. The isotopic ratios of CO2 were reported in per mil relative to vPDB scale. The isotopic ratios of CH4 were reported in per mil relative to Tohoku Univ. scale. The O2/N2, Ar/N2 and isotopic ratios of N2, O2 and Ar are reported in per meg relative to AIST scale. Please contact the investigator to know the details of the standard scales.