Figure 44 The time series of pH in the period 2012 to 2020 in the Atlantic Water (salinity 34.9 , temperature 0°C). The linear regression fit (orange line; gradient = 0.0080 0.0019, p = 0.0042, R2 = 0.71) is based on annual mean pH values (black squares) from observational data (circles). Bars are 1 standard deviation for each annual mean. The grey shaded area represents the 95% confidence limits.
