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Atlantic CFC data in CARINA

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Author(s): R. Steinfeldt | T. Tanhua | J. L. Bullister | R. M. Key | M. Rhein | J. Köhler

Journal: Earth System Science Data
ISSN 1866-3508

Volume: 2;
Issue: 1;
Start page: 1;
Date: 2010;
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ABSTRACT
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.
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