Global data on surface CO2 measurements are being collected and synthesized as part of the Surface Ocean CO2 Atlas (SOCAT; www.socat.info). While the long-term objective for this theme is to incorporate all biogeochemical surface measurements, currently we focus on CO2 observations and the expansion onto other EOVs will occur gradually.
On this page you will find information on how to submit your data into SOCAT and links to source of original pCO2 data from ships and other platforms available from a number of regional databases and data assembly centres listed below.
Data submissions must always be accompanied by metadata, and it is encouraged to use the SOCAT metadata template. For more information on how to submit or quality control data, please go to the SOCAT help page. Deadlines for submission to SOCATv2019 is passed but SOCAT is accepting submissions at all times. Deadline for submission to SOCATv2020 is 15 January 2020.
Surface Ocean CO2 Atlas (SOCAT)
The latest SOCAT version 2019, made public in June 2019, includes data from more than 10 countries. It has 25.7 million quality controlled surface ocean fCO2 measurements from 1957 to 2019. The SOCAT data set uses IOCCP recommended formats for metadata and data reporting. SOCAT quality control is carried out by regional working groups with a global group for coordination. Access SOCATv2019 from:
US NOAA National Centers for Environmental Information (NCEI)
Cruise information and data from Ship of Opportunity Program (SOOP) available from: https://www.nodc.noaa.gov/ocads/oceans/VOS_Program/
See also the Ocean Carbon and Acidification Data Portal:
Integrated Carbon Observing System Ocean Thematic Centre (OTC)
You can access surface pCO2 and other data from the ICOS Carbon Data Portal:
Global Surface pCO2 (LDEO) Database V2018
The Lamont-Doherty Earth Observatory (LDEO) database V2018 consists of 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. The product can be accessed from:
Global Ocean Acidification Observing Network (GOA-ON) Data Portal
The GOA-ON Data Explorer provides access and visualization to ocean acidification data and data synthesis products being collected around the world from a wide range of sources, including moorings, research cruises, and fixed time series stations. Layers contain contoured world-wide data; Platforms include icons for various observing assets, some of which display real-time data and many of which include links to data and metadata. For a given asset measuring carbonate chemistry, metadata includes information on which parameters are measured, links to data providers, and other useful details. The inventory of GOA-ON assets can be searched interactively by region, platform type, and variables by using the Filters tool.
OceanSITES Global Data Assembly Centres
Surface pCO2 data from moorings can be accessed from:
Observations carried out by the rapidly expanding network of profiling floats equipped with biogecohemical sensors is an important asset in the context of aiding pCO2 reconstruction efforts. Data from the floats are available in near-real time and in delayed-mode from: