TY - RPRT T1 - Processing BGC-Argo pH data at the DAC level A1 - Johnson,Kenneth S. A1 - Plant,Joshua N. A1 - Maurer,Tanya L. A1 - Takeshita,Yuichihiro AD - Monterey Bay Aquarium Research Institute, Moss Landing, CA 95039 UR - https://doi.org/10.13155/57195 DO - 10.13155/57195 N2 - Seawater proton concentration is a master variable that controls the air-sea gas exchange of CO2, the ability of organisms to produce calcium carbonate shells, and that tracks the production and respiration of organic carbon as CO2 is removed or added to water by biological processes.  The proton concentration in seawater [H+] (mol kg-seawater-1) is typically reported as the pH = -log10 [H+].  The in situ proton concentration ranges from about 3 to 30 nmol kg-seawater-1 (7.5