The distribution of 85Kr in the air over the North and South Pacific Ocean

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概要

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• The north-south section of the atmospheric concentration of ^<85>(Kr) over the Pacific is first reported. The most striking feature of the section is a large concentration difference at the geographical position of the intertropical convergence. The ^<85>(Kr) concentration in the air over the North Pacific ranged from 22 to 23pCi m^<-3> and in the South Pacific 16pCi m^<-3>. The concentration differences between two hemispheres is about 6pCi m^<-3>. Five year records from land stations in Japan indicate that the annual increase is about 1pCi m^<-3>y^<-1>. It seems that the amount of the southward transport of ^<85>(Kr) from the northern hemisphere is nearly equilibrated with that of radioactive disintegration and/or dissolution of ^<85>(Kr) into the ocean in the southern hemisphere.

• 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

• Suzuki Yoshimi

  Geochemical Laboratory Meteorological Research Institute

• Katsuragi Yukio

  Geochemical Laboratory, Meteorological Research Institute

• Katsuragi 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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