The Pacific Ocean Interior Carbon (PACIFICA) Database: Dissolved Inorganic Carbon, Alkalinity, pH, temperature, salinity, and other variables collected from profile observations using CTD, discrete bottles, and other instruments from 1985-02-12 to 2009-06-17 (NCEI Accession 0110865)

The adjustment values were suggested to account for the analytical offsets in the data of dissolved inorganic carbon, total alkalinity, salinity, oxygen, and nutrients (nitrate and nitrite, phosphate, and silicic acid) for each cruise as a result of the secondary quality control procedure, based on the crossover analysis for the data from deep layers (Tanhua et al., 2010).

We also merged a total of 59 adjusted datasets from Line P off the west coast of Canada. Finally, we have produced the adjusted PACIFICA database that consists of datasets from a total of 306 cruises that also include 34 datasets from WOCE Hydrographic Program cruises in the Pacific Ocean conducted in the 1990s. The PACIFICA database is available free of charge as a numeric data package (NDP-92) from the Carbon Dioxide Information Analysis Center (CDIAC) and North Pacific Marine Science Organization (PICES) web sites.