Original Cruise Data
Data Synthesis Products
Ocean Carbon Surface/Underway Data
Surface Ocean pCO2 data is used in the monitoring the ocean carbon flux between ocean and atmosphere. CDIAC surface ocean CO2 data archive consists of the Voluntary Observing Ship (VOS) program which is the original cruise data from the research ships and ships of opportunity cruises from 14 nations around the World, and two data synthesis projects: the Lamont-Doherty Earth Observatory (LDEO) database of approximately 9 million quality-controlled partial pressure of CO2 (pCO2) measurements made over the global oceans during 1957-2013, and the Surface Ocean CO2 Atlas (SOCAT) of fugacity of carbon dioxide (fCO2) measurements from more than 2660 ocean cruises from 1968-2011. SOCAT contains approximately 10.1 million measurements of various carbon parameters available in a common format.