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I-129/I-127, I-129/Cs-137 and I-129/Tc-99 in the Norwegian coastal current from 1980 to 1998

Yiou, F; Raisbeck, GM; Christensen, GC and Holm, Elis LU (2002) In Journal of Environmental Radioactivity 60(1-2). p.61-71
Abstract
Discharges of the nuclides I-129, Cs-137 and Tc-99 from the nuclear reprocessing facilities at Sellafield (UK) and La Hague (France) are very useful as oceanic tracers. On the basis of I-129/I-127, Cs-137 and Tc-99 measurements in archived seaweeds,the ratios of I-129/I-127, I-129/Cs-137 and I-129/Tc-99 have been estimated in seawater at two locations (Utsira and Kiberg) in the Norwegian Coastal Current from 1980 to 1998. These ratios, which vary up to two orders of magnitude over this period, are potentially very interesting for determining "transit times" in the Arctic and North Atlantic oceans. While the long-term trends in these ratios are quite clear, measurements in monthly and bimonthly samples show considerable structure. Further... (More)
Discharges of the nuclides I-129, Cs-137 and Tc-99 from the nuclear reprocessing facilities at Sellafield (UK) and La Hague (France) are very useful as oceanic tracers. On the basis of I-129/I-127, Cs-137 and Tc-99 measurements in archived seaweeds,the ratios of I-129/I-127, I-129/Cs-137 and I-129/Tc-99 have been estimated in seawater at two locations (Utsira and Kiberg) in the Norwegian Coastal Current from 1980 to 1998. These ratios, which vary up to two orders of magnitude over this period, are potentially very interesting for determining "transit times" in the Arctic and North Atlantic oceans. While the long-term trends in these ratios are quite clear, measurements in monthly and bimonthly samples show considerable structure. Further studies are required to determine the exact origin of this structure, which may be a limiting factor in the time resolution that can be obtained with these parameters. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
oceans, tracers, Tc-99, I-129, Cs-137, reprocessing
in
Journal of Environmental Radioactivity
volume
60
issue
1-2
pages
61 - 71
publisher
Elsevier
external identifiers
  • pmid:11936614
  • wos:000174560500005
  • scopus:0036008280
ISSN
1879-1700
DOI
10.1016/S0265-931X(01)00096-0
language
English
LU publication?
yes
id
a7a31388-e425-4504-ad90-46707e184ca9 (old id 341842)
date added to LUP
2007-11-16 17:14:20
date last changed
2017-08-20 03:28:45
@article{a7a31388-e425-4504-ad90-46707e184ca9,
  abstract     = {Discharges of the nuclides I-129, Cs-137 and Tc-99 from the nuclear reprocessing facilities at Sellafield (UK) and La Hague (France) are very useful as oceanic tracers. On the basis of I-129/I-127, Cs-137 and Tc-99 measurements in archived seaweeds,the ratios of I-129/I-127, I-129/Cs-137 and I-129/Tc-99 have been estimated in seawater at two locations (Utsira and Kiberg) in the Norwegian Coastal Current from 1980 to 1998. These ratios, which vary up to two orders of magnitude over this period, are potentially very interesting for determining "transit times" in the Arctic and North Atlantic oceans. While the long-term trends in these ratios are quite clear, measurements in monthly and bimonthly samples show considerable structure. Further studies are required to determine the exact origin of this structure, which may be a limiting factor in the time resolution that can be obtained with these parameters.},
  author       = {Yiou, F and Raisbeck, GM and Christensen, GC and Holm, Elis},
  issn         = {1879-1700},
  keyword      = {oceans,tracers,Tc-99,I-129,Cs-137,reprocessing},
  language     = {eng},
  number       = {1-2},
  pages        = {61--71},
  publisher    = {Elsevier},
  series       = {Journal of Environmental Radioactivity},
  title        = {I-129/I-127, I-129/Cs-137 and I-129/Tc-99 in the Norwegian coastal current from 1980 to 1998},
  url          = {http://dx.doi.org/10.1016/S0265-931X(01)00096-0},
  volume       = {60},
  year         = {2002},
}