Polonium-210 and Lead-210 activities measured on 9 water bottle profiles during POLARSTERN cruise ANT-XXIV/3
As part of the GEOTRACES Polarstern expedition ANT XXIV/3 (ZERO and DRAKE), Polonium-210 and Lead-210 have been measured in the water column and on suspended particulate matter in February to April 2008. Our goal was to resolve the affinities of 210Po and 210Pb to transparent exopolymer particles (T...
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Language: | English |
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PANGAEA
2011
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.763970 https://doi.org/10.1594/PANGAEA.763970 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.763970 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
ANT-XXIV/3 CTD/Rosette ultra clean CTD-RO CTD-UC Date/Time of event DEPTH water Drake Passage Elevation of event Event label GEOTRACES Global marine biogeochemical cycles of trace elements and their isotopes Latitude of event Lead-210 dissolved standard deviation particulate Longitude of event Polarstern Polonium-210 Polonium-210/Lead-210 Polonium-210/Lead-210 activity ratio |
spellingShingle |
ANT-XXIV/3 CTD/Rosette ultra clean CTD-RO CTD-UC Date/Time of event DEPTH water Drake Passage Elevation of event Event label GEOTRACES Global marine biogeochemical cycles of trace elements and their isotopes Latitude of event Lead-210 dissolved standard deviation particulate Longitude of event Polarstern Polonium-210 Polonium-210/Lead-210 Polonium-210/Lead-210 activity ratio Friedrich, Jana Robert, Maya Stimac, Ingrid Polonium-210 and Lead-210 activities measured on 9 water bottle profiles during POLARSTERN cruise ANT-XXIV/3 |
topic_facet |
ANT-XXIV/3 CTD/Rosette ultra clean CTD-RO CTD-UC Date/Time of event DEPTH water Drake Passage Elevation of event Event label GEOTRACES Global marine biogeochemical cycles of trace elements and their isotopes Latitude of event Lead-210 dissolved standard deviation particulate Longitude of event Polarstern Polonium-210 Polonium-210/Lead-210 Polonium-210/Lead-210 activity ratio |
description |
As part of the GEOTRACES Polarstern expedition ANT XXIV/3 (ZERO and DRAKE), Polonium-210 and Lead-210 have been measured in the water column and on suspended particulate matter in February to April 2008. Our goal was to resolve the affinities of 210Po and 210Pb to transparent exopolymer particles (TEP) and particulate organic carbon (POC). Polonium-210 and Lead-210 in the ocean can be used to identify the sources and sinks of suspended matter. In seawater, Polonium-210 (210Po) and Lead-210 (210Pb) are produced by stepwise radioactive decay of Uranium-238. 210Po (138 days half life) and 210Pb (22.3 years half life) have high affinities for suspended particles. Those radionuclides are present in dissolved form and adsorbed onto particles. Following adsorption onto particle surfaces, 210Po especially is transported into the interior of cells where it bonds to proteins. In this way, 210Po also accumulates in the food chain. 210Po is therefore considered to be a good tracer for POC, and traces particle export over a timescale of months. 210Pb (22.3 years half life) adsorbs preferably onto structural components of cells, biogenic silica and lithogenic particles, and is therefore a better tracer more rapidly sinking matter. Water samples were taken with Niskin bottles. Dissolved Polonium-210 and Lead-210 activities refer to the fraction < 1µm. Particulate Polonium-210 and Lead-210 refer to the activity on particles >1µm retained on nucleopore filters. Zooplankton retained on the filters was systematically removed as this study focused on phytoplankton and exudates. The data have been submitted to Pangaea following a Polonium-Lead intercalibration exercise organized by GEOTRACES, where the AWI lab results range within the data standard deviation from 10 participating labs. |
format |
Dataset |
author |
Friedrich, Jana Robert, Maya Stimac, Ingrid |
author_facet |
Friedrich, Jana Robert, Maya Stimac, Ingrid |
author_sort |
Friedrich, Jana |
title |
Polonium-210 and Lead-210 activities measured on 9 water bottle profiles during POLARSTERN cruise ANT-XXIV/3 |
title_short |
Polonium-210 and Lead-210 activities measured on 9 water bottle profiles during POLARSTERN cruise ANT-XXIV/3 |
title_full |
Polonium-210 and Lead-210 activities measured on 9 water bottle profiles during POLARSTERN cruise ANT-XXIV/3 |
title_fullStr |
Polonium-210 and Lead-210 activities measured on 9 water bottle profiles during POLARSTERN cruise ANT-XXIV/3 |
title_full_unstemmed |
Polonium-210 and Lead-210 activities measured on 9 water bottle profiles during POLARSTERN cruise ANT-XXIV/3 |
title_sort |
polonium-210 and lead-210 activities measured on 9 water bottle profiles during polarstern cruise ant-xxiv/3 |
publisher |
PANGAEA |
publishDate |
2011 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.763970 https://doi.org/10.1594/PANGAEA.763970 |
op_coverage |
MEDIAN LATITUDE: -58.360944 * MEDIAN LONGITUDE: -8.713867 * SOUTH-BOUND LATITUDE: -69.390600 * WEST-BOUND LONGITUDE: -64.427800 * NORTH-BOUND LATITUDE: -42.338900 * EAST-BOUND LONGITUDE: 8.993400 * DATE/TIME START: 2008-02-13T17:17:00 * DATE/TIME END: 2008-04-11T15:57:00 * MINIMUM DEPTH, water: 25 m * MAXIMUM DEPTH, water: 1000 m |
long_lat |
ENVELOPE(-64.427800,8.993400,-42.338900,-69.390600) |
geographic |
Drake Passage |
geographic_facet |
Drake Passage |
genre |
Berichte zur Polar- und Meeresforschung Drake Passage Reports on Polar and Marine Research |
genre_facet |
Berichte zur Polar- und Meeresforschung Drake Passage Reports on Polar and Marine Research |
op_relation |
Church, Thomas; Rigaud, Sylvain; Baskaran, Mark; Kumar, Anupam; Friedrich, Jana; Masqué, Pere; Puigcorbé, Viena; Kim, Guebuem; Radakovitch, Olivier; Hong, Gi Hoon (2012): Intercalibration studies of 210Po and 210Pb in dissolved and particulate seawater samples. Limnology and Oceanography-Methods, 10, 776-789, https://doi.org/10.4319/lom.2012.10.776 Fahrbach, Eberhard; de Baar, Hein J W (2010): The Expedition of the Research Vessel Polarstern to the Antarctic in 2008 (ANT-XXIV/3). Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 606, 232 pp, https://doi.org/10.2312/BzPM_0606_2010 https://doi.pangaea.de/10.1594/PANGAEA.763970 https://doi.org/10.1594/PANGAEA.763970 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.763970 https://doi.org/10.4319/lom.2012.10.776 https://doi.org/10.2312/BzPM_0606_2010 |
_version_ |
1766375510082846720 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.763970 2023-05-15T15:42:18+02:00 Polonium-210 and Lead-210 activities measured on 9 water bottle profiles during POLARSTERN cruise ANT-XXIV/3 Friedrich, Jana Robert, Maya Stimac, Ingrid MEDIAN LATITUDE: -58.360944 * MEDIAN LONGITUDE: -8.713867 * SOUTH-BOUND LATITUDE: -69.390600 * WEST-BOUND LONGITUDE: -64.427800 * NORTH-BOUND LATITUDE: -42.338900 * EAST-BOUND LONGITUDE: 8.993400 * DATE/TIME START: 2008-02-13T17:17:00 * DATE/TIME END: 2008-04-11T15:57:00 * MINIMUM DEPTH, water: 25 m * MAXIMUM DEPTH, water: 1000 m 2011-08-18 text/tab-separated-values, 782 data points https://doi.pangaea.de/10.1594/PANGAEA.763970 https://doi.org/10.1594/PANGAEA.763970 en eng PANGAEA Church, Thomas; Rigaud, Sylvain; Baskaran, Mark; Kumar, Anupam; Friedrich, Jana; Masqué, Pere; Puigcorbé, Viena; Kim, Guebuem; Radakovitch, Olivier; Hong, Gi Hoon (2012): Intercalibration studies of 210Po and 210Pb in dissolved and particulate seawater samples. Limnology and Oceanography-Methods, 10, 776-789, https://doi.org/10.4319/lom.2012.10.776 Fahrbach, Eberhard; de Baar, Hein J W (2010): The Expedition of the Research Vessel Polarstern to the Antarctic in 2008 (ANT-XXIV/3). Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 606, 232 pp, https://doi.org/10.2312/BzPM_0606_2010 https://doi.pangaea.de/10.1594/PANGAEA.763970 https://doi.org/10.1594/PANGAEA.763970 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY ANT-XXIV/3 CTD/Rosette ultra clean CTD-RO CTD-UC Date/Time of event DEPTH water Drake Passage Elevation of event Event label GEOTRACES Global marine biogeochemical cycles of trace elements and their isotopes Latitude of event Lead-210 dissolved standard deviation particulate Longitude of event Polarstern Polonium-210 Polonium-210/Lead-210 Polonium-210/Lead-210 activity ratio Dataset 2011 ftpangaea https://doi.org/10.1594/PANGAEA.763970 https://doi.org/10.4319/lom.2012.10.776 https://doi.org/10.2312/BzPM_0606_2010 2023-01-20T08:52:37Z As part of the GEOTRACES Polarstern expedition ANT XXIV/3 (ZERO and DRAKE), Polonium-210 and Lead-210 have been measured in the water column and on suspended particulate matter in February to April 2008. Our goal was to resolve the affinities of 210Po and 210Pb to transparent exopolymer particles (TEP) and particulate organic carbon (POC). Polonium-210 and Lead-210 in the ocean can be used to identify the sources and sinks of suspended matter. In seawater, Polonium-210 (210Po) and Lead-210 (210Pb) are produced by stepwise radioactive decay of Uranium-238. 210Po (138 days half life) and 210Pb (22.3 years half life) have high affinities for suspended particles. Those radionuclides are present in dissolved form and adsorbed onto particles. Following adsorption onto particle surfaces, 210Po especially is transported into the interior of cells where it bonds to proteins. In this way, 210Po also accumulates in the food chain. 210Po is therefore considered to be a good tracer for POC, and traces particle export over a timescale of months. 210Pb (22.3 years half life) adsorbs preferably onto structural components of cells, biogenic silica and lithogenic particles, and is therefore a better tracer more rapidly sinking matter. Water samples were taken with Niskin bottles. Dissolved Polonium-210 and Lead-210 activities refer to the fraction < 1µm. Particulate Polonium-210 and Lead-210 refer to the activity on particles >1µm retained on nucleopore filters. Zooplankton retained on the filters was systematically removed as this study focused on phytoplankton and exudates. The data have been submitted to Pangaea following a Polonium-Lead intercalibration exercise organized by GEOTRACES, where the AWI lab results range within the data standard deviation from 10 participating labs. Dataset Berichte zur Polar- und Meeresforschung Drake Passage Reports on Polar and Marine Research PANGAEA - Data Publisher for Earth & Environmental Science Drake Passage ENVELOPE(-64.427800,8.993400,-42.338900,-69.390600) |