Annual Rep ort of RADARC, 2002
The spatial and temporal distributions of the anthropogenic radionuclides 137Cs and 90Sr, originating from nuclear bomb testing, the Sellafield reprocessing plants in the Irish Sea, the Ob and Yenisey river discharges, are simulated using a global version of the Miami Isopycnic Co-ordinate Ocean Mod...
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ftzenodo:oai:zenodo.org:7609792 2023-05-15T14:54:52+02:00 Annual Rep ort of RADARC, 2002 Gao, Yongqi Drange, Helge Johannessen, Ola M. Petersson, Lasse H. 2003-03-03 https://zenodo.org/record/7609792 https://doi.org/10.5281/zenodo.7609792 eng eng doi:10.5281/zenodo.7609791 https://zenodo.org/communities/nersc-research https://zenodo.org/record/7609792 https://doi.org/10.5281/zenodo.7609792 oai:zenodo.org:7609792 info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode Radionuclides Contamination Ocean Norwegian Sea Kara Sea Dispersion Model MICOM info:eu-repo/semantics/report publication-report 2003 ftzenodo https://doi.org/10.5281/zenodo.760979210.5281/zenodo.7609791 2023-03-11T01:04:01Z The spatial and temporal distributions of the anthropogenic radionuclides 137Cs and 90Sr, originating from nuclear bomb testing, the Sellafield reprocessing plants in the Irish Sea, the Ob and Yenisey river discharges, are simulated using a global version of the Miami Isopycnic Co-ordinate Ocean Model (MICOM). The physical model is forced with daily atmospheric re-analyses fields for the period 1950 to present. It is shown that the radionuclides from the Sellafield discharge reach the Barents Sea region after 4-5 years, in accordance with observations. The simulation provides a detailed distribution and evolution of the radionuclides over the integration time. For the Atlantic waters o the coast of Norway and in the southern Barents Sea, the atmospheric fallout dominates over of Sellafield release up to the mid 1960s and from the early 1990s, whereas Sellafield is the main source for the two radionuclides in the 1970s and 1980s. The Ob river discharge dominate the surface 90Sr over most of the Arctic Ocean and along the eastern and western coasts of the Greenland before 1960. During the period of 1980 to 1990, the atmospheric fallout and the Ob river discharge are equally important in the 90Sr distribution over the Arctic Ocean. It is furthermore argued that model systems like the one presented here can be used for future prediction of radioactive contamination in the Nordic Seas and the Arctic Ocean, for instance under various global warming scenarios NERSC Technical report no. 235. Funded by the European Union under Contract no. ICA2-CT-2000-10037 Report Arctic Arctic Ocean Barents Sea Global warming Greenland Kara Sea Nordic Seas Norwegian Sea ob river yenisey river Zenodo Arctic Arctic Ocean Barents Sea Norwegian Sea Kara Sea Greenland Norway Yenisey ENVELOPE(82.680,82.680,71.828,71.828) |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
English |
topic |
Radionuclides Contamination Ocean Norwegian Sea Kara Sea Dispersion Model MICOM |
spellingShingle |
Radionuclides Contamination Ocean Norwegian Sea Kara Sea Dispersion Model MICOM Gao, Yongqi Drange, Helge Johannessen, Ola M. Petersson, Lasse H. Annual Rep ort of RADARC, 2002 |
topic_facet |
Radionuclides Contamination Ocean Norwegian Sea Kara Sea Dispersion Model MICOM |
description |
The spatial and temporal distributions of the anthropogenic radionuclides 137Cs and 90Sr, originating from nuclear bomb testing, the Sellafield reprocessing plants in the Irish Sea, the Ob and Yenisey river discharges, are simulated using a global version of the Miami Isopycnic Co-ordinate Ocean Model (MICOM). The physical model is forced with daily atmospheric re-analyses fields for the period 1950 to present. It is shown that the radionuclides from the Sellafield discharge reach the Barents Sea region after 4-5 years, in accordance with observations. The simulation provides a detailed distribution and evolution of the radionuclides over the integration time. For the Atlantic waters o the coast of Norway and in the southern Barents Sea, the atmospheric fallout dominates over of Sellafield release up to the mid 1960s and from the early 1990s, whereas Sellafield is the main source for the two radionuclides in the 1970s and 1980s. The Ob river discharge dominate the surface 90Sr over most of the Arctic Ocean and along the eastern and western coasts of the Greenland before 1960. During the period of 1980 to 1990, the atmospheric fallout and the Ob river discharge are equally important in the 90Sr distribution over the Arctic Ocean. It is furthermore argued that model systems like the one presented here can be used for future prediction of radioactive contamination in the Nordic Seas and the Arctic Ocean, for instance under various global warming scenarios NERSC Technical report no. 235. Funded by the European Union under Contract no. ICA2-CT-2000-10037 |
format |
Report |
author |
Gao, Yongqi Drange, Helge Johannessen, Ola M. Petersson, Lasse H. |
author_facet |
Gao, Yongqi Drange, Helge Johannessen, Ola M. Petersson, Lasse H. |
author_sort |
Gao, Yongqi |
title |
Annual Rep ort of RADARC, 2002 |
title_short |
Annual Rep ort of RADARC, 2002 |
title_full |
Annual Rep ort of RADARC, 2002 |
title_fullStr |
Annual Rep ort of RADARC, 2002 |
title_full_unstemmed |
Annual Rep ort of RADARC, 2002 |
title_sort |
annual rep ort of radarc, 2002 |
publishDate |
2003 |
url |
https://zenodo.org/record/7609792 https://doi.org/10.5281/zenodo.7609792 |
long_lat |
ENVELOPE(82.680,82.680,71.828,71.828) |
geographic |
Arctic Arctic Ocean Barents Sea Norwegian Sea Kara Sea Greenland Norway Yenisey |
geographic_facet |
Arctic Arctic Ocean Barents Sea Norwegian Sea Kara Sea Greenland Norway Yenisey |
genre |
Arctic Arctic Ocean Barents Sea Global warming Greenland Kara Sea Nordic Seas Norwegian Sea ob river yenisey river |
genre_facet |
Arctic Arctic Ocean Barents Sea Global warming Greenland Kara Sea Nordic Seas Norwegian Sea ob river yenisey river |
op_relation |
doi:10.5281/zenodo.7609791 https://zenodo.org/communities/nersc-research https://zenodo.org/record/7609792 https://doi.org/10.5281/zenodo.7609792 oai:zenodo.org:7609792 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.760979210.5281/zenodo.7609791 |
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1766326617226870784 |