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.在MR22-06C科考航次中，采集的空气样品经校正后分装至40个不锈钢采样瓶（stainless-steel flasks）中。对上述采集得到的空气样品，分析了二氧化碳（CO2）、氧气（O2，以O2/N2比值计）、氩气（Ar，以Ar/N2比值计）、甲烷（CH4）、一氧化碳（CO）、一氧化二氮（N2O）、六氟化硫（SF6）和氢气（H2）的浓度，以及CO2、CH4、N2、O2及Ar的同位素比值。CO2、CH4、CO、N2O、SF6及H2的浓度采用东北大学（Tohoku Univ.）一级标准气体进行定值。CO2的同位素比值以相对于维也纳佩德贝标准（vPDB）的千分比（per mil）形式报告。CH4的同位素比值以相对于东北大学校准尺度的千分比（per mil）形式报告。O2/N2、Ar/N2比值以及N2、O2、Ar的同位素比值均以相对于日本产业技术综合研究所（AIST）尺度的百万分比（per meg）形式报告。如需了解各标准尺度的详细信息，请联系本数据集的研究负责人。