Fig. 4
From: Alkalinity enhancement with sodium hydroxide in coastal ocean waters
Variation of the CO\(_2\) system with salinity at the field trial site. a. pCO\(_2\) (± 2 \(\mu\)atm) versus salinity all observations collected prior to, during, and following the experimental trial; b. pH (± 0.012) versus salinity as in panel a; c. pCO\(_2\) versus salinity (± 0.01) for observations collected only during the same hours as the NaOH release trials (08:00 - 12:00 local time). d. pH versus salinity (± 0.01) as in panel c. In all panels, the gray data are observations from pre- and post-trial, while the coloured symbols indicate observations collected during the NaOH release at the release, near field (NF), and downstream sampling locations (as in Fig. 3).
