Atlantic CFC data in CARINA

• Published in: Earth System Science Data
• Main Authors: R. Steinfeldt, T. Tanhua, J. L. Bullister, R. M. Key, M. Rhein, J. Köhler
• Format: Article in Journal/Newspaper
• Language: English
• Published: Copernicus Publications 2010
• Subjects: Environmental sciences; GE1-350; Geology; QE1-996.5; Arctic; Southern Ocean; Nordic Seas
• Online Access: https://doi.org/10.5194/essd-2-1-2010; https://doaj.org/article/023ccd5529594cff990915bc21fbbfcb

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 (CCl 4 ). 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.