Th-234 deficit and excess in the Southern Ocean during spring 2001 : particle export and remineralization
Author Posting. © American Geophysical Union, 2004. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geophysical Research Letters 31 (2004): L12301, doi:10.1029/2004GL019744. 234Th deficit and ex...
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ftwhoas:oai:darchive.mblwhoilibrary.org:1912/3308 2023-05-15T13:53:14+02:00 Th-234 deficit and excess in the Southern Ocean during spring 2001 : particle export and remineralization Savoye, Nicolas Buesseler, Ken O. Cardinal, Damien Dehairs, Frank 2004-06-16 application/pdf https://hdl.handle.net/1912/3308 en_US eng American Geophysical Union https://doi.org/10.1029/2004GL019744 Geophysical Research Letters 31 (2004): L12301 https://hdl.handle.net/1912/3308 doi:10.1029/2004GL019744 Geophysical Research Letters 31 (2004): L12301 doi:10.1029/2004GL019744 Th-234 Article 2004 ftwhoas https://doi.org/10.1029/2004GL019744 2022-05-28T22:57:55Z Author Posting. © American Geophysical Union, 2004. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geophysical Research Letters 31 (2004): L12301, doi:10.1029/2004GL019744. 234Th deficit and excess were examined in the upper 500 m of the Southern Ocean from Sub-Antarctic to Seasonal Ice Zones (Australian sector) during austral spring 2001. 234Th fluxes at 100 m indicate that particle export was low in the North (46.9–51.0°S), minimal in the Polar and Inter-Polar Frontal Zones and high in the South (≥61°S). These results are in tight agreement with new production estimates from the same cruise. Our data indicate that Polar and Inter-Polar Frontal Zones were not zones of intense export in the Australian sector at this time of year, in contrast with other sectors of the Southern Ocean. Also, we highlight the usefulness of 234Th excess below the mixed layer as a tool to study mesopelagic remineralization. K.O. Buesseler was supported by WHOI Ocean Life Institute Fellowship and US National Science Foundation. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Antarctic Austral Southern Ocean Geophysical Research Letters 31 12 n/a n/a |
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Open Polar |
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Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
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ftwhoas |
language |
English |
topic |
Th-234 |
spellingShingle |
Th-234 Savoye, Nicolas Buesseler, Ken O. Cardinal, Damien Dehairs, Frank Th-234 deficit and excess in the Southern Ocean during spring 2001 : particle export and remineralization |
topic_facet |
Th-234 |
description |
Author Posting. © American Geophysical Union, 2004. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geophysical Research Letters 31 (2004): L12301, doi:10.1029/2004GL019744. 234Th deficit and excess were examined in the upper 500 m of the Southern Ocean from Sub-Antarctic to Seasonal Ice Zones (Australian sector) during austral spring 2001. 234Th fluxes at 100 m indicate that particle export was low in the North (46.9–51.0°S), minimal in the Polar and Inter-Polar Frontal Zones and high in the South (≥61°S). These results are in tight agreement with new production estimates from the same cruise. Our data indicate that Polar and Inter-Polar Frontal Zones were not zones of intense export in the Australian sector at this time of year, in contrast with other sectors of the Southern Ocean. Also, we highlight the usefulness of 234Th excess below the mixed layer as a tool to study mesopelagic remineralization. K.O. Buesseler was supported by WHOI Ocean Life Institute Fellowship and US National Science Foundation. |
format |
Article in Journal/Newspaper |
author |
Savoye, Nicolas Buesseler, Ken O. Cardinal, Damien Dehairs, Frank |
author_facet |
Savoye, Nicolas Buesseler, Ken O. Cardinal, Damien Dehairs, Frank |
author_sort |
Savoye, Nicolas |
title |
Th-234 deficit and excess in the Southern Ocean during spring 2001 : particle export and remineralization |
title_short |
Th-234 deficit and excess in the Southern Ocean during spring 2001 : particle export and remineralization |
title_full |
Th-234 deficit and excess in the Southern Ocean during spring 2001 : particle export and remineralization |
title_fullStr |
Th-234 deficit and excess in the Southern Ocean during spring 2001 : particle export and remineralization |
title_full_unstemmed |
Th-234 deficit and excess in the Southern Ocean during spring 2001 : particle export and remineralization |
title_sort |
th-234 deficit and excess in the southern ocean during spring 2001 : particle export and remineralization |
publisher |
American Geophysical Union |
publishDate |
2004 |
url |
https://hdl.handle.net/1912/3308 |
geographic |
Antarctic Austral Southern Ocean |
geographic_facet |
Antarctic Austral Southern Ocean |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_source |
Geophysical Research Letters 31 (2004): L12301 doi:10.1029/2004GL019744 |
op_relation |
https://doi.org/10.1029/2004GL019744 Geophysical Research Letters 31 (2004): L12301 https://hdl.handle.net/1912/3308 doi:10.1029/2004GL019744 |
op_doi |
https://doi.org/10.1029/2004GL019744 |
container_title |
Geophysical Research Letters |
container_volume |
31 |
container_issue |
12 |
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n/a |
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n/a |
_version_ |
1766258224359538688 |