Dataset: Carbonate chemistry and CTD data collected along a North Pacific transect between Hawaii and Alaska on R/V Kilo Moana cruise KM1712 in August 2017

Water samples were collected at 24 different depths during each CTD cast. Temperature, salinity, [O2], density and fluorescence were measured in situ both downcast and upcast. After CTD recovery, water samples were collected and DIC, pH, d13C of DIC were measured onboard. Other parameters in the carbonate system were calculated using CO2SYS.

DIC and d13C were measured using a Picarro Cavity Ring-Down Spectroscopy (G2131-i). pH was measured using a Varian Cary 400 spectrophotometer. The CTD included a rosette of 24 10L bottles.

Data columns d13C_DIC_PDB_USC1 and d13C_DIC_PDB_USC2 were measured by the USC and Caltech groups. All other data columns to the right (d13C_DIC_PDB_USF1 and d13C_DIC_PDB_USF2, Alk, DIC, pH, OmegaCa, and OmegaAr) were measured by the USF group.