Abstract
The concentrations of three artificial radionuclides (90Sr, 137Cs and 239+240Pu) introduced into seawaters from global fallout were simulated from 1957 to 1994 by using an ocean general circulation model. The distributions of the calculated 137Cs and 90Sr concentrations were in good agreement with the observed concentrations. The vertical distribution of the calculated 239+240Pu concentration in the South Pacific also agreed with the observed data. However, the calculated 239+240Pu concentrations in the North Pacific water columns were significantly underestimated in comparison with the observed data, which strongly suggests the presence of additional sources of plutonium input to the North Pacific.
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M. Aoyama, K. Hirose, J. Environ. Radioactivity, 29 (1995) 57.
M. Aoyama et al., http://www.mri-jma.go.jp/Dep/ge/ge.html
K. Hirose et al, J. Meteor. Soc. Japan, 65 (1987) 259.
Y. igarashi, M. Otsuji-Hatori, K. Hirose, J. Environ. Radioact., 31 (1996) 157.
S. G. Malakhov, I. B. Pudovkina, J. Geophys. Res., 75 (1970) 3623.
R. W. SPENCER, J. Climate, 6 (1993) 1301.
A. MONETTI, EML-579, 1996, p. 56.
K. Playford et al., AEA Environment and Energy, Harwell Laboratory, AEA-EE-0362, 1992.
P. R. Gent et al., J. Climate, 11 (1998) 1287.
N. Nakashiki, T. OHSUMI, Proc. 3rd Intern. Conf. on Carbon Dioxide Removal, 1997, p. 355.
M. Uematsu, R, Duce, Maritimes, 30 (1986) 1.
H. L. Volchok et al., Radioactivity in the Marine Environment, National Academy of Science, 1971, p. 42.
Guegueniat, Germain (Eds), Radionuclides in the Oceans Inputs and Inventories, Metivier, 1996, p. 375.
M. Aoyama et al., Appl. Radiation Isotopes, in press.
H. D. Livingston et al., WHOI-85-19, 1985.
Y. Nagaya, K. Nakamura, J. Oceanogr. Soc. Japan, 43 (1987) 345.
V. M. Vdovenko et al., Proc. Symp. on Hydrogeochemistry and Biochemistry, 1970, p. 337.
Y. Miyake et al., Pap. Meteor. Geophys., MRI, 39 (1988) 95.
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Tsumune, D., Aoyama, M., Hirose, K. et al. Calculation of artificial radionuclides in the ocean by an ocean general circulation model. Journal of Radioanalytical and Nuclear Chemistry 248, 777–783 (2001). https://doi.org/10.1023/A:1010665300905
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DOI: https://doi.org/10.1023/A:1010665300905