Atlantic CFC data in CARINA

• Published in: Earth System Science Data
• Main Authors: Steinfeldt, R., Tanhua, T., Bullister, J. L., Key, R. M., Rhein, M., Köhler, J.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Copernicus Publications 2010
• Subjects: article; Verlagsveröffentlichung; Arctic; Southern Ocean; Nordic Seas
• Online Access: https://doi.org/10.5194/essd-2-1-2010; https://noa.gwlb.de/receive/cop_mods_00029408; https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00029363/essd-2-1-2010.pdf; https://essd.copernicus.org/articles/2/1/2010/essd-2-1-2010.pdf

Water column data of carbon and carbon-relevant parameters have been collected and merged into a new database called CARINA (CARbon IN the Atlantic). In order to provide a consistent data set, all data have been examined for systematic biases and adjusted if necessary (secondary quality control (QC)). The CARINA data set is divided into three regions: the Arctic/Nordic Seas, the Atlantic region and the Southern Ocean. Here we present the CFC data for the Atlantic region, including the chlorofluorocarbons CFC-11, CFC-12 and CFC-113 as well as carbon tetrachloride (CCl4). The methods applied for the secondary quality control, a crossover analyses, the investigation of CFC ratios in the ocean and the CFC surface saturation are presented. Based on the results, the CFC data of some cruises are adjusted by a certain factor or given a "poor'' quality flag.