Deep water circulation and composition in the Arctic Ocean by dissolved barium, aluminium and silicate
As part of the ARK-XXII/2 Polarstern expedition in summer 2007, dissolved Ba was analyzed in the Eurasian Basins and the Makarov Basin including the Alpha and Mendeleyev Ridges as well as on the adjacent shelves. The data was compared with data of dissolved Al and Si from the same cruise. Superimpos...
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ftawi:oai:epic.awi.de:24619 2024-09-15T17:38:49+00:00 Deep water circulation and composition in the Arctic Ocean by dissolved barium, aluminium and silicate Roeske, Tobias Rutgers v. d. Loeff, Michiel Middag, R. Bakker, K. 2012-03-20 application/pdf https://epic.awi.de/id/eprint/24619/ https://epic.awi.de/id/eprint/24619/1/Roeske2012BPreprint.pdf https://hdl.handle.net/10013/epic.39148 https://hdl.handle.net/10013/epic.39148.d001 unknown https://epic.awi.de/id/eprint/24619/1/Roeske2012BPreprint.pdf https://hdl.handle.net/10013/epic.39148.d001 Roeske, T. , Rutgers v. d. Loeff, M. orcid:0000-0003-1393-3742 , Middag, R. and Bakker, K. (2012) Deep water circulation and composition in the Arctic Ocean by dissolved barium, aluminium and silicate , Marine Chemistry., 132 , pp. 56-67 . doi:10.1016/j.marchem.2012.02.001 <https://doi.org/10.1016/j.marchem.2012.02.001> , hdl:10013/epic.39148 EPIC3Marine Chemistry., 132, pp. 56-67 Article isiRev 2012 ftawi https://doi.org/10.1016/j.marchem.2012.02.001 2024-06-24T04:02:42Z As part of the ARK-XXII/2 Polarstern expedition in summer 2007, dissolved Ba was analyzed in the Eurasian Basins and the Makarov Basin including the Alpha and Mendeleyev Ridges as well as on the adjacent shelves. The data was compared with data of dissolved Al and Si from the same cruise. Superimposed on the gradual increase of concentration with depth by dissolution of the particle rain, we observe different flow patterns in intermediate waters along the track. In the Atlantic and Intermediate Depth Water (AIDW) in the Amundsen Basin the influence from Eurasian shelf water can be seen in slightly enhanced concentrations of dissolved Ba compared with Al and Si. At the same time Al concentrations decrease with distance from the Eurasian shelves. Source waters to the Atlantic Layer Water (ALW) in the Makarov Basin have the same background Ba concentrations as the Nansen AIDW. We describe the distributions of the elements in the Deep Eurasian and Bottom Water (DEBW) by deep shelf convection as well as diffusion from sediments controlling concentrations in the Nansen DEBW while in the Amundsen DEBW diffusion from sediments appears to be more important. In the Makarov Basin inflow from the Canadian Basin and overflow from the Amundsen Basin at 2000 m depth at the Lomonosov Ridge are required to explain the composition of bottom waters. Article in Journal/Newspaper amundsen basin Arctic Arctic Ocean Lomonosov Ridge makarov basin Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Marine Chemistry 132-133 56 67 |
institution |
Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
As part of the ARK-XXII/2 Polarstern expedition in summer 2007, dissolved Ba was analyzed in the Eurasian Basins and the Makarov Basin including the Alpha and Mendeleyev Ridges as well as on the adjacent shelves. The data was compared with data of dissolved Al and Si from the same cruise. Superimposed on the gradual increase of concentration with depth by dissolution of the particle rain, we observe different flow patterns in intermediate waters along the track. In the Atlantic and Intermediate Depth Water (AIDW) in the Amundsen Basin the influence from Eurasian shelf water can be seen in slightly enhanced concentrations of dissolved Ba compared with Al and Si. At the same time Al concentrations decrease with distance from the Eurasian shelves. Source waters to the Atlantic Layer Water (ALW) in the Makarov Basin have the same background Ba concentrations as the Nansen AIDW. We describe the distributions of the elements in the Deep Eurasian and Bottom Water (DEBW) by deep shelf convection as well as diffusion from sediments controlling concentrations in the Nansen DEBW while in the Amundsen DEBW diffusion from sediments appears to be more important. In the Makarov Basin inflow from the Canadian Basin and overflow from the Amundsen Basin at 2000 m depth at the Lomonosov Ridge are required to explain the composition of bottom waters. |
format |
Article in Journal/Newspaper |
author |
Roeske, Tobias Rutgers v. d. Loeff, Michiel Middag, R. Bakker, K. |
spellingShingle |
Roeske, Tobias Rutgers v. d. Loeff, Michiel Middag, R. Bakker, K. Deep water circulation and composition in the Arctic Ocean by dissolved barium, aluminium and silicate |
author_facet |
Roeske, Tobias Rutgers v. d. Loeff, Michiel Middag, R. Bakker, K. |
author_sort |
Roeske, Tobias |
title |
Deep water circulation and composition in the Arctic Ocean by dissolved barium, aluminium and silicate |
title_short |
Deep water circulation and composition in the Arctic Ocean by dissolved barium, aluminium and silicate |
title_full |
Deep water circulation and composition in the Arctic Ocean by dissolved barium, aluminium and silicate |
title_fullStr |
Deep water circulation and composition in the Arctic Ocean by dissolved barium, aluminium and silicate |
title_full_unstemmed |
Deep water circulation and composition in the Arctic Ocean by dissolved barium, aluminium and silicate |
title_sort |
deep water circulation and composition in the arctic ocean by dissolved barium, aluminium and silicate |
publishDate |
2012 |
url |
https://epic.awi.de/id/eprint/24619/ https://epic.awi.de/id/eprint/24619/1/Roeske2012BPreprint.pdf https://hdl.handle.net/10013/epic.39148 https://hdl.handle.net/10013/epic.39148.d001 |
genre |
amundsen basin Arctic Arctic Ocean Lomonosov Ridge makarov basin |
genre_facet |
amundsen basin Arctic Arctic Ocean Lomonosov Ridge makarov basin |
op_source |
EPIC3Marine Chemistry., 132, pp. 56-67 |
op_relation |
https://epic.awi.de/id/eprint/24619/1/Roeske2012BPreprint.pdf https://hdl.handle.net/10013/epic.39148.d001 Roeske, T. , Rutgers v. d. Loeff, M. orcid:0000-0003-1393-3742 , Middag, R. and Bakker, K. (2012) Deep water circulation and composition in the Arctic Ocean by dissolved barium, aluminium and silicate , Marine Chemistry., 132 , pp. 56-67 . doi:10.1016/j.marchem.2012.02.001 <https://doi.org/10.1016/j.marchem.2012.02.001> , hdl:10013/epic.39148 |
op_doi |
https://doi.org/10.1016/j.marchem.2012.02.001 |
container_title |
Marine Chemistry |
container_volume |
132-133 |
container_start_page |
56 |
op_container_end_page |
67 |
_version_ |
1810475602701975552 |