The major goal of the EU-funded project CAVASSOO (Carbon Variability Studies by Ships of Opportunity) project was to establish an international network in the North Atlantic consisting of commercial vessels that are equipped with pCO2 measurement devices. The installation of an autonomously working unit onboard the carcarrier M/V Falstaff was completed in 2002. Measurements started a month later with the first transatlantic crossing. In the following months continuous and discrete samples were analyzed. It was examined whether it is possible to correlate the oceanic pCO2 with parameters that...