Radioactivity Exploration from the Arctic to the Antarctic. Part 6: The Arctic Ocean-96 expedition
The Swedish Arctic Ocean-96 expedition arranged by the Swedish Polar Research Committee took place during 1996 with the Swedish icebreaker M/S Oden. The expedition focused on studying the distribution of radionuclides in different water masses in the central Arctic Ocean. The expedition crossed the...
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Language: | English |
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Bertil RR Persson, Medical Radiation Physics, 22185 Lund, Sweden
2015
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Online Access: | https://lup.lub.lu.se/record/8566440 https://doi.org/10.13140/RG.2.1.4263.1128 https://portal.research.lu.se/files/3332535/8566442.pdf |
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ftulundlup:oai:lup.lub.lu.se:89bbeec8-954c-45ed-aa92-7298ee87121f 2023-05-15T13:22:43+02:00 Radioactivity Exploration from the Arctic to the Antarctic. Part 6: The Arctic Ocean-96 expedition Persson, Bertil R Holm, Elis Josefsson, Dan Eriksson, Mats Roos, Per Carlsson, Kjell-Åke 2015 application/pdf https://lup.lub.lu.se/record/8566440 https://doi.org/10.13140/RG.2.1.4263.1128 https://portal.research.lu.se/files/3332535/8566442.pdf eng eng Bertil RR Persson, Medical Radiation Physics, 22185 Lund, Sweden https://lup.lub.lu.se/record/8566440 http://dx.doi.org/10.13140/RG.2.1.4263.1128 https://portal.research.lu.se/files/3332535/8566442.pdf info:eu-repo/semantics/openAccess Acta Scientiarum Lundensia; 2015(007), pp 1-22 (2015) ISSN: 1651-5013 Environmental Health and Occupational Health Arctic Ocean-96 M/S Oden Barents Sea Nansen Basin Amundsen Basin Lomonosov Ridge North Pole 137Cs 90Sr 129l 134Cs/137Cs 239+240Pu Inventories Arctic Ocean water contributiontojournal/article info:eu-repo/semantics/article text 2015 ftulundlup https://doi.org/10.13140/RG.2.1.4263.1128 2023-02-01T23:35:43Z The Swedish Arctic Ocean-96 expedition arranged by the Swedish Polar Research Committee took place during 1996 with the Swedish icebreaker M/S Oden. The expedition focused on studying the distribution of radionuclides in different water masses in the central Arctic Ocean. The expedition crossed the Barents Sea, entered the Nansen Basin at the St. Anna Trough, and continued north across the Amundsen Basin. The main part of the expedition was concentrated on the north Lomonosov Ridge and the return route passed the North Pole and went south along 10 oE towards Svalbard. In both legs, water samples in the surface and subsurface layers were collected for the determination of fission products and transuranic elements in seawater and sediment. The highest 137Cs, 90Sr and 129l activities and 134Cs/137Cs activity ratios are found in a band stretching from the northern Lomonosov Ridge, over the North Pole and south along 10-15 oE to 85 oN. The releases from European nuclear fuel reprocessing plants and Chernobyl fallout traced by the 129I and 134Cs/137Cs signals respectively have approximately the same spatial distribution in the Arctic Ocean surface layer. The activity concentration of 90Sr in surface water is about 2 Bq.m-3. For 239+240Pu the lowest concentrations in the surface water of 4 mBq.m-3 was found on the Lomonosov Ridge and in the Makarov Basin. In the Eurasian Basin, the concentrations 239+240Pu are about 13 mBq.m-3 . For all the radionuclides analysed, the water profiles generally show activities decreasing with depth. An exception is the high 137Cs activity concentrations found in the lower halocline layer at the Lomonosov Ridge and Makarov Basin stations. The maxima were not observed in the 90Sr or l29l measurements. It is assumed to be due to a contribution of Chernobyl fallout to the Arctic Ocean surface layers in the years around 1990. Inventories down to 900 m death reveal that between 60-70 % of the 137Cs, 90Sr and in the Arctic Ocean water, are present in the surface layer inflow from the Atlantic. ... Article in Journal/Newspaper amundsen basin Antarc* Antarctic Arctic Arctic Ocean Barents Sea Lomonosov Ridge makarov basin Nansen Basin North Pole oden Svalbard Lund University Publications (LUP) Amundsen Basin ENVELOPE(74.000,74.000,87.000,87.000) Antarctic Arctic Arctic Ocean Barents Sea Makarov Basin ENVELOPE(170.000,170.000,87.000,87.000) North Pole St. Anna Trough ENVELOPE(69.500,69.500,80.750,80.750) Svalbard The Antarctic |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Environmental Health and Occupational Health Arctic Ocean-96 M/S Oden Barents Sea Nansen Basin Amundsen Basin Lomonosov Ridge North Pole 137Cs 90Sr 129l 134Cs/137Cs 239+240Pu Inventories Arctic Ocean water |
spellingShingle |
Environmental Health and Occupational Health Arctic Ocean-96 M/S Oden Barents Sea Nansen Basin Amundsen Basin Lomonosov Ridge North Pole 137Cs 90Sr 129l 134Cs/137Cs 239+240Pu Inventories Arctic Ocean water Persson, Bertil R Holm, Elis Josefsson, Dan Eriksson, Mats Roos, Per Carlsson, Kjell-Åke Radioactivity Exploration from the Arctic to the Antarctic. Part 6: The Arctic Ocean-96 expedition |
topic_facet |
Environmental Health and Occupational Health Arctic Ocean-96 M/S Oden Barents Sea Nansen Basin Amundsen Basin Lomonosov Ridge North Pole 137Cs 90Sr 129l 134Cs/137Cs 239+240Pu Inventories Arctic Ocean water |
description |
The Swedish Arctic Ocean-96 expedition arranged by the Swedish Polar Research Committee took place during 1996 with the Swedish icebreaker M/S Oden. The expedition focused on studying the distribution of radionuclides in different water masses in the central Arctic Ocean. The expedition crossed the Barents Sea, entered the Nansen Basin at the St. Anna Trough, and continued north across the Amundsen Basin. The main part of the expedition was concentrated on the north Lomonosov Ridge and the return route passed the North Pole and went south along 10 oE towards Svalbard. In both legs, water samples in the surface and subsurface layers were collected for the determination of fission products and transuranic elements in seawater and sediment. The highest 137Cs, 90Sr and 129l activities and 134Cs/137Cs activity ratios are found in a band stretching from the northern Lomonosov Ridge, over the North Pole and south along 10-15 oE to 85 oN. The releases from European nuclear fuel reprocessing plants and Chernobyl fallout traced by the 129I and 134Cs/137Cs signals respectively have approximately the same spatial distribution in the Arctic Ocean surface layer. The activity concentration of 90Sr in surface water is about 2 Bq.m-3. For 239+240Pu the lowest concentrations in the surface water of 4 mBq.m-3 was found on the Lomonosov Ridge and in the Makarov Basin. In the Eurasian Basin, the concentrations 239+240Pu are about 13 mBq.m-3 . For all the radionuclides analysed, the water profiles generally show activities decreasing with depth. An exception is the high 137Cs activity concentrations found in the lower halocline layer at the Lomonosov Ridge and Makarov Basin stations. The maxima were not observed in the 90Sr or l29l measurements. It is assumed to be due to a contribution of Chernobyl fallout to the Arctic Ocean surface layers in the years around 1990. Inventories down to 900 m death reveal that between 60-70 % of the 137Cs, 90Sr and in the Arctic Ocean water, are present in the surface layer inflow from the Atlantic. ... |
format |
Article in Journal/Newspaper |
author |
Persson, Bertil R Holm, Elis Josefsson, Dan Eriksson, Mats Roos, Per Carlsson, Kjell-Åke |
author_facet |
Persson, Bertil R Holm, Elis Josefsson, Dan Eriksson, Mats Roos, Per Carlsson, Kjell-Åke |
author_sort |
Persson, Bertil R |
title |
Radioactivity Exploration from the Arctic to the Antarctic. Part 6: The Arctic Ocean-96 expedition |
title_short |
Radioactivity Exploration from the Arctic to the Antarctic. Part 6: The Arctic Ocean-96 expedition |
title_full |
Radioactivity Exploration from the Arctic to the Antarctic. Part 6: The Arctic Ocean-96 expedition |
title_fullStr |
Radioactivity Exploration from the Arctic to the Antarctic. Part 6: The Arctic Ocean-96 expedition |
title_full_unstemmed |
Radioactivity Exploration from the Arctic to the Antarctic. Part 6: The Arctic Ocean-96 expedition |
title_sort |
radioactivity exploration from the arctic to the antarctic. part 6: the arctic ocean-96 expedition |
publisher |
Bertil RR Persson, Medical Radiation Physics, 22185 Lund, Sweden |
publishDate |
2015 |
url |
https://lup.lub.lu.se/record/8566440 https://doi.org/10.13140/RG.2.1.4263.1128 https://portal.research.lu.se/files/3332535/8566442.pdf |
long_lat |
ENVELOPE(74.000,74.000,87.000,87.000) ENVELOPE(170.000,170.000,87.000,87.000) ENVELOPE(69.500,69.500,80.750,80.750) |
geographic |
Amundsen Basin Antarctic Arctic Arctic Ocean Barents Sea Makarov Basin North Pole St. Anna Trough Svalbard The Antarctic |
geographic_facet |
Amundsen Basin Antarctic Arctic Arctic Ocean Barents Sea Makarov Basin North Pole St. Anna Trough Svalbard The Antarctic |
genre |
amundsen basin Antarc* Antarctic Arctic Arctic Ocean Barents Sea Lomonosov Ridge makarov basin Nansen Basin North Pole oden Svalbard |
genre_facet |
amundsen basin Antarc* Antarctic Arctic Arctic Ocean Barents Sea Lomonosov Ridge makarov basin Nansen Basin North Pole oden Svalbard |
op_source |
Acta Scientiarum Lundensia; 2015(007), pp 1-22 (2015) ISSN: 1651-5013 |
op_relation |
https://lup.lub.lu.se/record/8566440 http://dx.doi.org/10.13140/RG.2.1.4263.1128 https://portal.research.lu.se/files/3332535/8566442.pdf |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.13140/RG.2.1.4263.1128 |
_version_ |
1766366529071349760 |