Global Ocean Data Analysis Project (GLODAP) v2.2023

This NCEI Accession consists of the GLODAPv2.2023 data product composed of data from 1108 scientific cruises covering the global ocean between 1972 and 2021. It includes full depth discrete bottle measurements of salinity, oxygen, nitrate, silicate, phosphate, dissolved inorganic carbon (TCO2), total alkalinity (TAlk), CO2 fugacity (fCO2), pH, chlorofluorocarbons (CFC-11, CFC-12, CFC-113, and CCl4), SF6, and various isotopes and organic compounds. It was created by appending data from 23 cruises to GLODAPv2.2022 (Lauvset et al., 2022, NCEI Accession 0257247). The data for salinity, oxygen, nitrate, silicate, phosphate, TCO2, TAlk, pH, CFC-11, CFC-12, CFC-113, CCl4, and SF6 were subjected to primary and secondary quality control. Severe biases in these data have been corrected for, and outliers removed. However, differences in data related to any known or likely time trends or variations have not been corrected for. These data are believed to be accurate to 0.005 in salinity, 1% in oxygen, 2% in nitrate, 2% in silicate, 2% in phosphate, 4 µmol kg-1 in TCO2, 4 µmol kg-1 in TAlk, and for the halogenated transient tracers and SF6: 5%

Data and resources

  • ERDDAP's version of the OPeNDAP .html web page for this dataset. Specify a subset of the dataset and download the data via OPeNDAP or in many different file…
    ERDDAP Open
  • ERDDAP's Make-A-Graph .html web page for this dataset. Create an image with a map or graph of a subset of the data.
    ERDDAP Open
  • Background information from the source
    HTML Open
  • Background information from the source
    HTML Open
  • Background information from the source
    HTML Open
  • ERDDAP's tabledap service (a flavor of OPeNDAP) for tabular (sequence) data. Add different extensions (e.g., .html, .graph, .das, .dds) to the base URL for…
    ERDDAP Open
  • Background information from the source
    HTML Open
  • An OPeNDAP service for tabular (sequence) data. Add different extensions (e.g., .html, .das, .dds) to the base URL for different purposes.
    ERDDAP Open
  • Background information from the source
    HTML Open
  • Web page to facilitate selecting subsets of the dataset
    ERDDAP Open

Additional information

Temporal extent1972-07-24 – 2021-10-04
Date (creation)2026-09-16
StatusonGoing
Update frequencyasNeeded
Metadata languageen
LicenseCreative Commons Attribution Share-Alike http://www.opendefinition.org/licenses/cc-by-sa
Source metadataISO 19115 XML
Last updated2026-11-04
Created2026-11-04
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