The behaviour of 236-U in the North Atlantic Ocean assessed from numerical modelling: A new evaluation of the input function into the Arctic
- A numerical model, previously validated with other radionuclides, was applied to simulate the dispersion of 236U released from European nuclear fuel reprocessing plants in the North Atlantic and Shelf Seas using a published reconstruction of Sellafield and La Hague releases. Model results are in b...
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ftunivsevillair:oai:idus.us.es:11441/129884 2023-05-15T14:52:30+02:00 The behaviour of 236-U in the North Atlantic Ocean assessed from numerical modelling: A new evaluation of the input function into the Arctic Periáñez Rodríguez, Raúl Suh, Kyunk-Suk Min, Byung-Il Villa Alfageme, María Universidad de Sevilla. Departamento de física aplicada I Universidad de Sevilla. Departamento de Física Aplicada II Universidad de Sevilla. RNM138: Física Nuclear Aplicada 2022-02-11T10:49:42Z application/pdf https://idus.us.es/handle//11441/129884 eng eng Elsevier Science of the Total Environment, 626 (June 2018), 255-263. https://www.sciencedirect.com/science/article/abs/pii/S0048969718300792?via%3Dihub https://idus.us.es/handle//11441/129884 info:eu-repo/semantics/openAccess Lagrangian model North Atlantic 236-Uranium Sediments Water tracer Nuclear fuel reprocessing plants info:eu-repo/semantics/article info:eu-repo/semantics/submittedVersion 2022 ftunivsevillair 2022-02-16T00:22:59Z - A numerical model, previously validated with other radionuclides, was applied to simulate the dispersion of 236U released from European nuclear fuel reprocessing plants in the North Atlantic and Shelf Seas using a published reconstruction of Sellafield and La Hague releases. Model results are in better agreement with observations if the lowest estimation of such releases are used. This implies that approximately 40 kg of 236U has been discharged from Sellafield. It was found that adsorption of 236U on bed sediments of the shallow European Shelf Seas plays an essential role in its dispersion patterns. This contrasts strongly with the more conservative behaviour of 129I in the same area. This has two important implications in the use of 236U as oceanographic tracer; i) special care must be taken in coastal areas, as sediments might act as sinks and sources of 236U; ii) the annual input function of 236U into the Arctic is not directly controlled by the annual discharges from Sellafield and La Hague, since sediments from the Irish, Celtic and North Sea modulate and smooth the signal. Only 52% of the total releases enter into the Arctic Ocean. Article in Journal/Newspaper Arctic Arctic Ocean North Atlantic idUS - Deposito de Investigación Universidad de Sevilla Arctic Arctic Ocean |
institution |
Open Polar |
collection |
idUS - Deposito de Investigación Universidad de Sevilla |
op_collection_id |
ftunivsevillair |
language |
English |
topic |
Lagrangian model North Atlantic 236-Uranium Sediments Water tracer Nuclear fuel reprocessing plants |
spellingShingle |
Lagrangian model North Atlantic 236-Uranium Sediments Water tracer Nuclear fuel reprocessing plants Periáñez Rodríguez, Raúl Suh, Kyunk-Suk Min, Byung-Il Villa Alfageme, María The behaviour of 236-U in the North Atlantic Ocean assessed from numerical modelling: A new evaluation of the input function into the Arctic |
topic_facet |
Lagrangian model North Atlantic 236-Uranium Sediments Water tracer Nuclear fuel reprocessing plants |
description |
- A numerical model, previously validated with other radionuclides, was applied to simulate the dispersion of 236U released from European nuclear fuel reprocessing plants in the North Atlantic and Shelf Seas using a published reconstruction of Sellafield and La Hague releases. Model results are in better agreement with observations if the lowest estimation of such releases are used. This implies that approximately 40 kg of 236U has been discharged from Sellafield. It was found that adsorption of 236U on bed sediments of the shallow European Shelf Seas plays an essential role in its dispersion patterns. This contrasts strongly with the more conservative behaviour of 129I in the same area. This has two important implications in the use of 236U as oceanographic tracer; i) special care must be taken in coastal areas, as sediments might act as sinks and sources of 236U; ii) the annual input function of 236U into the Arctic is not directly controlled by the annual discharges from Sellafield and La Hague, since sediments from the Irish, Celtic and North Sea modulate and smooth the signal. Only 52% of the total releases enter into the Arctic Ocean. |
author2 |
Universidad de Sevilla. Departamento de física aplicada I Universidad de Sevilla. Departamento de Física Aplicada II Universidad de Sevilla. RNM138: Física Nuclear Aplicada |
format |
Article in Journal/Newspaper |
author |
Periáñez Rodríguez, Raúl Suh, Kyunk-Suk Min, Byung-Il Villa Alfageme, María |
author_facet |
Periáñez Rodríguez, Raúl Suh, Kyunk-Suk Min, Byung-Il Villa Alfageme, María |
author_sort |
Periáñez Rodríguez, Raúl |
title |
The behaviour of 236-U in the North Atlantic Ocean assessed from numerical modelling: A new evaluation of the input function into the Arctic |
title_short |
The behaviour of 236-U in the North Atlantic Ocean assessed from numerical modelling: A new evaluation of the input function into the Arctic |
title_full |
The behaviour of 236-U in the North Atlantic Ocean assessed from numerical modelling: A new evaluation of the input function into the Arctic |
title_fullStr |
The behaviour of 236-U in the North Atlantic Ocean assessed from numerical modelling: A new evaluation of the input function into the Arctic |
title_full_unstemmed |
The behaviour of 236-U in the North Atlantic Ocean assessed from numerical modelling: A new evaluation of the input function into the Arctic |
title_sort |
behaviour of 236-u in the north atlantic ocean assessed from numerical modelling: a new evaluation of the input function into the arctic |
publisher |
Elsevier |
publishDate |
2022 |
url |
https://idus.us.es/handle//11441/129884 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean North Atlantic |
genre_facet |
Arctic Arctic Ocean North Atlantic |
op_relation |
Science of the Total Environment, 626 (June 2018), 255-263. https://www.sciencedirect.com/science/article/abs/pii/S0048969718300792?via%3Dihub https://idus.us.es/handle//11441/129884 |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1766323740528869376 |