Fig. 4: Hydrography vs. climatology.
From: A 37-year record of ocean acidification in the Southern California current

The measured pCO2 cycle at station 90.90 (computed from AT and CT) compared to the Landschützer et al. (2020) climatology at station 90.90. The climatology was adjusted to a mean year of 2002 by applying our observed slope of −1.5 μatm yr-1 (Table 1), and by the scaling of Fay et al. (2021) to generate the SeaFlux data product (sampled for year 2002). Error bars for 90.90 are identical to Fig. 1j. Error bars shown for the Landschützer climatology and SeaFlux product are 13.7 μatm, the RMSE reported in Table 2 in ref. 25.