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The article focuses on the quality control of the Southern Ocean data from the Pacific sector which are included in Carbon In the Atlantic (CARINA). It notes the use of crossover analysis between stations and inversion analysis of all crossover data to check the quality control of the Pacific sector. It infers that the outcome of the effort is an internally consistent, high-quality carbon data set for all cruises including the reference cruises.

The article reports on the extension of the North Atlantic project to include the three sectors of the Southern Ocean including the Indian sector. It notes the examination of the parameters such as total alkalinity, oxygen and phosphate for cruise-to-cruise and overall consistency. The outcome is the other properties of the carbon system that can be used to investigate the natural variability or stability of ocean chemistry and the accumulation of anthropogenic carbon.

The article reports on the move of the Carbon In the Atlantic (CARINA) carbon synthesis to include the Southern Ocean. As part of it, the variables from the Atlantic sector cruises which include total alkalinity, oxygen, nitrate and silicate are examined to check the cruise-to-cruise consistency. The outcome of the examination mentions that the effort is an internally consistent and high-quality carbon data set for all cruises including the reference cruises.

The article examines the consistency of cruise information in the carbon in the Atlantic (CARINA) database in the Atlantic sector of the Southern Ocean. It specifically investigates dissolved inorganic carbon, total alkalinity, oxygen, nitrate, phosphate and silicate of all Southern Ocean cruises for cruise-to-cruise consistency. Examinations on these cruises including their reference sources are included, showing internal consistency and high quality carbon data of the cruises.