We are very happy to inform you that the GLODAPv2_2019 data product has been released on March 26, 2019, during the First International AtlantOS Symposium in Paris. The Global Ocean Data Analysis Project (GLODAP) is a data synthesis activity of carbon-relevant ocean interior data by a consortium of international marine scientists. The EU project AtlantOS supported the new release, together with the IOCCP and numerous national funding bodies, universities and research institutes.

GLODAPv2_2019 is an incremental update of the GLODAPv2 data product released in 2016. Data from 116 new cruises have been added and small errors in the previous GLODAPv2 data product have been corrected. GLODAPv2_2019 contains data from 840 cruises with more than 1.1 million Niskin bottle sample analyses covering all oceans from 1972 through 2017.

The data in GLODAP have gone through a rigorous two-step quality control (QC) procedure: The primary QC focused on the precision of the data, the secondary QC focused on the consistency of the data. Extensive quality control was carried out for salinity, oxygen, nutrients, total inorganic carbon, total alkalinity, pH and chlorofluorocarbon data. Systematic biases in data that exceeded a predetermined threshold were identified and corrected.

The released data holdings contain global and regional synthesis files containing the bias minimized data. In addition, all of the original data files without alteration other than formatting and consistency of units and scales have been made available along with the originally supplied metadata. A cruise summary table provides data access and additional information including references to publications that have used data from specific cruises. Full documentation will be provided in a manuscript to be submitted to the journal Earth System Science Data.

Please visit us at https://www.glodap.info/. The data are available from the National Centers for Environmental Information (NCEI) at: https://www.nodc.noaa.gov/ocads/oceans/GLODAPv2_2019/ . 

 Global map of >1.1 million observations included in GLODAPv2-2019.