Hydrodynamic modelling of Port Foster, Deception Island, Antarctica
Abstract Over the last decade, the Antarctic continent has been the object of intensive scientific programmes. However, the emphasis of these studies rarely focuses on the Antarctic as a source of potential elements such as mercury. The release of mercury to the environment is known to occur at Dece...
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crcambridgeupr:10.1017/s0954102017000463 2024-03-03T08:38:36+00:00 Hydrodynamic modelling of Port Foster, Deception Island, Antarctica Figueiredo, Daniel Dos Santos, Aires Mateus, Marcos Pinto, Ligia 2017 http://dx.doi.org/10.1017/s0954102017000463 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102017000463 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 30, issue 2, page 115-124 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2017 crcambridgeupr https://doi.org/10.1017/s0954102017000463 2024-02-08T08:47:21Z Abstract Over the last decade, the Antarctic continent has been the object of intensive scientific programmes. However, the emphasis of these studies rarely focuses on the Antarctic as a source of potential elements such as mercury. The release of mercury to the environment is known to occur at Deception Island, associated with volcanic activity. In this study, a 3D hydrodynamic model was used to assess the role of water circulation on the dispersion of released mercury. Sea level variation and tidal circulation data were obtained. Residence time was calculated using two different approaches. Internal tide generation in summer and winter were recognized and the barotropic tidal components obtained. Lagrangian tracers were used to depict particle circulation (simulating particulate mercury) in a three month summer simulation for barotropic and baroclinic conditions. The results show that particles accumulate in the northern and western parts of the bay. It is acknowledged that the results of the 3D model are associated with a non-negligible uncertainty, which can only be reduced with an ongoing commitment to monitoring. The findings of this study indicate that mercury accumulation is occurring in Port Foster (Deception Island), which is a potential threat to the local ecosystem. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science Antarctica Deception Island Cambridge University Press Antarctic The Antarctic Deception Island ENVELOPE(-60.633,-60.633,-62.950,-62.950) Port Foster ENVELOPE(162.967,162.967,-78.400,-78.400) Antarctic Science 30 2 115 124 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography Figueiredo, Daniel Dos Santos, Aires Mateus, Marcos Pinto, Ligia Hydrodynamic modelling of Port Foster, Deception Island, Antarctica |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract Over the last decade, the Antarctic continent has been the object of intensive scientific programmes. However, the emphasis of these studies rarely focuses on the Antarctic as a source of potential elements such as mercury. The release of mercury to the environment is known to occur at Deception Island, associated with volcanic activity. In this study, a 3D hydrodynamic model was used to assess the role of water circulation on the dispersion of released mercury. Sea level variation and tidal circulation data were obtained. Residence time was calculated using two different approaches. Internal tide generation in summer and winter were recognized and the barotropic tidal components obtained. Lagrangian tracers were used to depict particle circulation (simulating particulate mercury) in a three month summer simulation for barotropic and baroclinic conditions. The results show that particles accumulate in the northern and western parts of the bay. It is acknowledged that the results of the 3D model are associated with a non-negligible uncertainty, which can only be reduced with an ongoing commitment to monitoring. The findings of this study indicate that mercury accumulation is occurring in Port Foster (Deception Island), which is a potential threat to the local ecosystem. |
format |
Article in Journal/Newspaper |
author |
Figueiredo, Daniel Dos Santos, Aires Mateus, Marcos Pinto, Ligia |
author_facet |
Figueiredo, Daniel Dos Santos, Aires Mateus, Marcos Pinto, Ligia |
author_sort |
Figueiredo, Daniel |
title |
Hydrodynamic modelling of Port Foster, Deception Island, Antarctica |
title_short |
Hydrodynamic modelling of Port Foster, Deception Island, Antarctica |
title_full |
Hydrodynamic modelling of Port Foster, Deception Island, Antarctica |
title_fullStr |
Hydrodynamic modelling of Port Foster, Deception Island, Antarctica |
title_full_unstemmed |
Hydrodynamic modelling of Port Foster, Deception Island, Antarctica |
title_sort |
hydrodynamic modelling of port foster, deception island, antarctica |
publisher |
Cambridge University Press (CUP) |
publishDate |
2017 |
url |
http://dx.doi.org/10.1017/s0954102017000463 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102017000463 |
long_lat |
ENVELOPE(-60.633,-60.633,-62.950,-62.950) ENVELOPE(162.967,162.967,-78.400,-78.400) |
geographic |
Antarctic The Antarctic Deception Island Port Foster |
geographic_facet |
Antarctic The Antarctic Deception Island Port Foster |
genre |
Antarc* Antarctic Antarctic Science Antarctica Deception Island |
genre_facet |
Antarc* Antarctic Antarctic Science Antarctica Deception Island |
op_source |
Antarctic Science volume 30, issue 2, page 115-124 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102017000463 |
container_title |
Antarctic Science |
container_volume |
30 |
container_issue |
2 |
container_start_page |
115 |
op_container_end_page |
124 |
_version_ |
1792507017141682176 |