Distribution of pCO2 and δ13C in the air and surface sea water in the Southern Ocean, south of Australia

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概要

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• Distribution of pCO_2 and δ^<13>C in the air over the ocean and in the surface sea water of the Southern Ocean was determined during the cruise of BIOMASS (November 1983 to February 1984). In the study area, south of Australia, pCO_2 in the air was nearly constant (∿342ppm) throughout the cruise but pCO_2 in the surface sea water varied considerably ranging from 300 to 356ppm. In general, pCO_2 in the surface sea water tended to increase from north to south, and it was relatively higher than that in the air in higher latitudes. The average value in the south of 5°S was -7.97‰ for δ^<13>C and 341.7ppm for pCO_2 of atmospheric CO_2. These results indicate that atmospheric CO_2 over the ocean is not isotopic equilibrium with the surface sea water and kinetic fractionation must be considered for understanding δ^<13>C of atmospheric CO_2.

• 国立極地研究所の論文

著者

• Inoue Hisayuki

  Geochemical Laboratory Meteorological Research Institute

• Sugimura Yukio

  Geochemical Laboratory, Meteorological Research Institute

• Sugimura Yukio

  Geochemical Laboratory Meteorological Research Institute

関連論文

• Atmospheric methane over the North Pacific from 1987 to 1993
• Distribution of pCO2 and δ13C in the air and surface sea water in the Southern Ocean, south of Australia
• The distribution of 85Kr in the air over the North and South Pacific Ocean
• Distribution of Selenium in the Western North Pacific Waters : Re-evaluation of Dissolved Organic Selenium

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