The first trans-Arctic 14 C section: comparison of the mean ages of the deep waters in the Eurasian and Canadian basins of the Arctic Ocean
We present Delta 14C data collected during three cruises to the Arctic Ocean that took place in the summers of 1987 (POLARSTERN cruise ARK IV/3), 1991 (ARCTIC 91 Expedition), and 1994 (Arctic Ocean Section 94). The cruise tracks of these three expeditions cover all major basins of the Arctic Ocean (...
Published in: | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms |
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Online Access: | http://hdl.handle.net/11858/00-001M-0000-000E-F6C3-7 http://hdl.handle.net/11858/00-001M-0000-000E-F6C2-9 |
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ftpubman:oai:pure.mpg.de:item_1738099 2023-08-27T04:07:03+02:00 The first trans-Arctic 14 C section: comparison of the mean ages of the deep waters in the Eurasian and Canadian basins of the Arctic Ocean Schlosser, P. Kromer, B. Ekwurzel, B. Bönisch, G. McNichol, A. Scheider, R. von Reden, K. Östlund, H. Swift, J. 1997 application/pdf http://hdl.handle.net/11858/00-001M-0000-000E-F6C3-7 http://hdl.handle.net/11858/00-001M-0000-000E-F6C2-9 unknown info:eu-repo/semantics/altIdentifier/doi/10.1016/S0168-583X(96)00677-5 http://hdl.handle.net/11858/00-001M-0000-000E-F6C3-7 http://hdl.handle.net/11858/00-001M-0000-000E-F6C2-9 Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms info:eu-repo/semantics/article 1997 ftpubman https://doi.org/10.1016/S0168-583X(96)00677-5 2023-08-02T01:01:55Z We present Delta 14C data collected during three cruises to the Arctic Ocean that took place in the summers of 1987 (POLARSTERN cruise ARK IV/3), 1991 (ARCTIC 91 Expedition), and 1994 (Arctic Ocean Section 94). The cruise tracks of these three expeditions cover all major basins of the Arctic Ocean (Nansen, Amundsen, Makarov and Canada basins), and can be combined to a trans.Arctic section reaching from the Barents Sea slope to the southern Canada Basin just north of Bering Strait. The section is based on I7 stations covering the entire water column (about 250 data points). The combined Delta 14C data set was produced from a mixture of large volume samples measured by low-level counting and small volume samples measured by Accelerator Mass Spectrometry (AMS). We use the Delta 14 C section, together with previously published Delta 14C data from single stations located in several basins of the Arctic Ocean, to derive mean “ages” (isolation times) of the deep waters in the Arctic Ocean. We estimate these mean “ages” to be = 250 years in the bottom waters of the Eurasian Basin and = 450 years in the Canadian Basin Deep Water. A remarkable feature of the A”C section is the homogeneity in the “?I distribution observed in the deep Canadian Basin. Within the measurement precision of about + 2% (LV) to about f 5% (AMS). we cannot detect significant horizontal or vertical A14C gradients below 2000 m depth between the northern boundary of the Makarov Basin and the southern margin of the Canada Basin. There is no statistically significant difference between samples measured by AMS and by low-level counting. Article in Journal/Newspaper Arctic Arctic Ocean Barents Sea Bering Strait canada basin makarov basin Max Planck Society: MPG.PuRe Arctic Arctic Ocean Barents Sea Bering Strait Canada Makarov Basin ENVELOPE(170.000,170.000,87.000,87.000) Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 123 1-4 431 437 |
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Open Polar |
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Max Planck Society: MPG.PuRe |
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ftpubman |
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unknown |
description |
We present Delta 14C data collected during three cruises to the Arctic Ocean that took place in the summers of 1987 (POLARSTERN cruise ARK IV/3), 1991 (ARCTIC 91 Expedition), and 1994 (Arctic Ocean Section 94). The cruise tracks of these three expeditions cover all major basins of the Arctic Ocean (Nansen, Amundsen, Makarov and Canada basins), and can be combined to a trans.Arctic section reaching from the Barents Sea slope to the southern Canada Basin just north of Bering Strait. The section is based on I7 stations covering the entire water column (about 250 data points). The combined Delta 14C data set was produced from a mixture of large volume samples measured by low-level counting and small volume samples measured by Accelerator Mass Spectrometry (AMS). We use the Delta 14 C section, together with previously published Delta 14C data from single stations located in several basins of the Arctic Ocean, to derive mean “ages” (isolation times) of the deep waters in the Arctic Ocean. We estimate these mean “ages” to be = 250 years in the bottom waters of the Eurasian Basin and = 450 years in the Canadian Basin Deep Water. A remarkable feature of the A”C section is the homogeneity in the “?I distribution observed in the deep Canadian Basin. Within the measurement precision of about + 2% (LV) to about f 5% (AMS). we cannot detect significant horizontal or vertical A14C gradients below 2000 m depth between the northern boundary of the Makarov Basin and the southern margin of the Canada Basin. There is no statistically significant difference between samples measured by AMS and by low-level counting. |
format |
Article in Journal/Newspaper |
author |
Schlosser, P. Kromer, B. Ekwurzel, B. Bönisch, G. McNichol, A. Scheider, R. von Reden, K. Östlund, H. Swift, J. |
spellingShingle |
Schlosser, P. Kromer, B. Ekwurzel, B. Bönisch, G. McNichol, A. Scheider, R. von Reden, K. Östlund, H. Swift, J. The first trans-Arctic 14 C section: comparison of the mean ages of the deep waters in the Eurasian and Canadian basins of the Arctic Ocean |
author_facet |
Schlosser, P. Kromer, B. Ekwurzel, B. Bönisch, G. McNichol, A. Scheider, R. von Reden, K. Östlund, H. Swift, J. |
author_sort |
Schlosser, P. |
title |
The first trans-Arctic 14 C section: comparison of the mean ages of the deep waters in the Eurasian and Canadian basins of the Arctic Ocean |
title_short |
The first trans-Arctic 14 C section: comparison of the mean ages of the deep waters in the Eurasian and Canadian basins of the Arctic Ocean |
title_full |
The first trans-Arctic 14 C section: comparison of the mean ages of the deep waters in the Eurasian and Canadian basins of the Arctic Ocean |
title_fullStr |
The first trans-Arctic 14 C section: comparison of the mean ages of the deep waters in the Eurasian and Canadian basins of the Arctic Ocean |
title_full_unstemmed |
The first trans-Arctic 14 C section: comparison of the mean ages of the deep waters in the Eurasian and Canadian basins of the Arctic Ocean |
title_sort |
first trans-arctic 14 c section: comparison of the mean ages of the deep waters in the eurasian and canadian basins of the arctic ocean |
publishDate |
1997 |
url |
http://hdl.handle.net/11858/00-001M-0000-000E-F6C3-7 http://hdl.handle.net/11858/00-001M-0000-000E-F6C2-9 |
long_lat |
ENVELOPE(170.000,170.000,87.000,87.000) |
geographic |
Arctic Arctic Ocean Barents Sea Bering Strait Canada Makarov Basin |
geographic_facet |
Arctic Arctic Ocean Barents Sea Bering Strait Canada Makarov Basin |
genre |
Arctic Arctic Ocean Barents Sea Bering Strait canada basin makarov basin |
genre_facet |
Arctic Arctic Ocean Barents Sea Bering Strait canada basin makarov basin |
op_source |
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/S0168-583X(96)00677-5 http://hdl.handle.net/11858/00-001M-0000-000E-F6C3-7 http://hdl.handle.net/11858/00-001M-0000-000E-F6C2-9 |
op_doi |
https://doi.org/10.1016/S0168-583X(96)00677-5 |
container_title |
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms |
container_volume |
123 |
container_issue |
1-4 |
container_start_page |
431 |
op_container_end_page |
437 |
_version_ |
1775347768008638464 |