pH variations and relationship with oxygen concentration in the DBL@en

In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2016) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation by seacarb is 2018-02-02.为实现与其他海洋酸化数据集的全面可比性，本研究采用R软件包seacarb（Gattuso等，2016），依照Nisumaa等（2010）所述方法，计算得到一套完整且一致的碳酸盐系统变量。本数据集除存档原始数值外，还附带经重新计算的参数（详见相关首席研究员信息）。使用seacarb完成碳酸盐化学计算的日期为2018年2月2日。