Global Ocean Surface Water Partial Pressure of CO2 Database: Measurements Performed During 1957-2018 (LDEO Database Version 2018) (NCEI Accession 0160492)

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. We have added 531,520 data points comprised of 30 leg/cruise segments in this version. All of these were collected on the 5 ships in our current field program. These 5 ships operate primarily in high latitudes in both hemispheres and have built decades long records in these areas. R/V Nathaniel B. Palmer’s system has been operating since 1995, R/V Laurence M. Gould’s system since 2001, USCGC Healy since 2011, R/V M. Langseth since 2010, and R/V Sikuliaq since 2015. Our contribution to this database through many years of 3.19 million records is primarily for the polar and sub-polar seas. These underway data have been quality controlled and corrected for the time lag and temperature differences between the water intake and pCO2 measurements. In order to allow re-examination of the data in the future, a number of measured parameters relevant to pCO2 in seawater are listed. The overall uncertainty for the pCO2 values listed is estimated to be ± 2.5 μatm on the average.

Data and Resources

Additional Info

Field Value
Last Updated October 11, 2019, 05:44
Created October 24, 2018, 06:13
access_constraints ["Cite as: Takahashi, Taro; Sutherland, Stewart C.; Kozyr, Alex (2017). Global Ocean Surface Water Partial Pressure of CO2 Database: Measurements Performed During 1957-2018 (LDEO Database Version 2018) (NCEI Accession 0160492). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.3334/cdiac/otg.ndp088(v2015). Accessed [date].", "Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose."]
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