We would like to inform you that the LDEO Database Version 2018 (LDEO_Database_V2018) was published at the Ocean Carbon Data System (OCADS) - a data management project within the US NOAA National Centers for Environmental Information (NCEI). Approximately 13.5 million measurements of surface water pCO₂ made over the global oceans during 1957-2018 have been processed to make a uniform data file in this Version 2018. Measurements made in open oceans as well as in coastal waters are included. The data assembled include only those measured using equilibrator-CO₂ analyzer systems, and have been quality-controlled based upon the stability of the system performance, the reliability of calibrations for CO₂ analysis and the internal consistency of data.

The dataset is available from this link: https://www.nodc.noaa.gov/ocads/oceans/LDEO_Underway_Database/.

Dataset should be cited as:

Takahashi, Taro; Sutherland, Stewart C.; Kozyr, Alex (2019). Global Ocean Surface Water Partial Pressure of CO₂ Database: Measurements Performed During 1957-2018 (LDEO Database Version 2018) (NCEI Accession 0160492). Version 7.7. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.3334/CDIAC/OTG.NDP088(V2015).