Radium isotopes and 228Th in water column samples collected on POLARSTERN expedition PS100 ...
Radium isotopes are produced by decay of an isotope of thorium, a highly particle reactive element. Radium is relatively soluble in seawater such that once a thorium isotope in suspended or bottom sediments decays, a fraction of the produced radium isotope may be released to solution. 228Ra is stron...
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Online Access: | https://dx.doi.org/10.1594/pangaea.936027 https://doi.pangaea.de/10.1594/PANGAEA.936027 |
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ftdatacite:10.1594/pangaea.936027 2024-03-31T07:51:13+00:00 Radium isotopes and 228Th in water column samples collected on POLARSTERN expedition PS100 ... Rutgers van der Loeff, Michiel M Stimac, Ingrid Valk, Ole Geibert, Walter Vieira, Lucia Helena 2021 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.936027 https://doi.pangaea.de/10.1594/PANGAEA.936027 en eng PANGAEA https://dx.doi.org/10.1029/2021gb007191 https://dx.doi.org/10.1038/s41467-021-23093-0 https://dx.doi.org/10.1002/lom3.10428 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 GEOTRACES In-Situ-Pump Radium Thorium Event label Station label DATE/TIME LATITUDE LONGITUDE Depth, bathymetric DEPTH, water Thorium-228 Thorium-228, standard deviation Radium-224 Radium-224, standard deviation Radium-226 Radium-226, standard deviation Radium-228 Radium-228, standard deviation Radium-228/Radium-226 activity ratio Radium-228/Radium-226 activity ratio, standard deviation In situ pump RaDeCC Gamma spectroscopy PS100 Polarstern Global marine biogeochemical cycles of trace elements and their isotopes GEOTRACES dataset Dataset 2021 ftdatacite https://doi.org/10.1594/pangaea.93602710.1029/2021gb00719110.1038/s41467-021-23093-010.1002/lom3.10428 2024-03-04T14:08:12Z Radium isotopes are produced by decay of an isotope of thorium, a highly particle reactive element. Radium is relatively soluble in seawater such that once a thorium isotope in suspended or bottom sediments decays, a fraction of the produced radium isotope may be released to solution. 228Ra is strongly enriched in shelf waters and in the Transpolar Drift (TPD) and its half-life (5.8 years) is well suited to study the fate of this shelf-derived water in the central Arctic. The 228Th/228Ra ratio in the subsurface water column can be used to trace particle fluxes. In previous studies up to PS94 (2015) we had identified the strong and increasing 228Ra signal in the Transpolar Drift. During PS100 we studied the distribution of 228Ra in Fram Strait to investigate how this 228Ra signal in the TPD is changed by dilution and decay on its way to the East Greenland Current. Water from in situ pumps was filtered and passed over MnO2-coated cartridges to absorb the Ra and Th. On board, short-lived Radium isotopes and ... Dataset Arctic East Greenland east greenland current Fram Strait Greenland DataCite Metadata Store (German National Library of Science and Technology) Arctic Greenland |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
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ftdatacite |
language |
English |
topic |
GEOTRACES In-Situ-Pump Radium Thorium Event label Station label DATE/TIME LATITUDE LONGITUDE Depth, bathymetric DEPTH, water Thorium-228 Thorium-228, standard deviation Radium-224 Radium-224, standard deviation Radium-226 Radium-226, standard deviation Radium-228 Radium-228, standard deviation Radium-228/Radium-226 activity ratio Radium-228/Radium-226 activity ratio, standard deviation In situ pump RaDeCC Gamma spectroscopy PS100 Polarstern Global marine biogeochemical cycles of trace elements and their isotopes GEOTRACES |
spellingShingle |
GEOTRACES In-Situ-Pump Radium Thorium Event label Station label DATE/TIME LATITUDE LONGITUDE Depth, bathymetric DEPTH, water Thorium-228 Thorium-228, standard deviation Radium-224 Radium-224, standard deviation Radium-226 Radium-226, standard deviation Radium-228 Radium-228, standard deviation Radium-228/Radium-226 activity ratio Radium-228/Radium-226 activity ratio, standard deviation In situ pump RaDeCC Gamma spectroscopy PS100 Polarstern Global marine biogeochemical cycles of trace elements and their isotopes GEOTRACES Rutgers van der Loeff, Michiel M Stimac, Ingrid Valk, Ole Geibert, Walter Vieira, Lucia Helena Radium isotopes and 228Th in water column samples collected on POLARSTERN expedition PS100 ... |
topic_facet |
GEOTRACES In-Situ-Pump Radium Thorium Event label Station label DATE/TIME LATITUDE LONGITUDE Depth, bathymetric DEPTH, water Thorium-228 Thorium-228, standard deviation Radium-224 Radium-224, standard deviation Radium-226 Radium-226, standard deviation Radium-228 Radium-228, standard deviation Radium-228/Radium-226 activity ratio Radium-228/Radium-226 activity ratio, standard deviation In situ pump RaDeCC Gamma spectroscopy PS100 Polarstern Global marine biogeochemical cycles of trace elements and their isotopes GEOTRACES |
description |
Radium isotopes are produced by decay of an isotope of thorium, a highly particle reactive element. Radium is relatively soluble in seawater such that once a thorium isotope in suspended or bottom sediments decays, a fraction of the produced radium isotope may be released to solution. 228Ra is strongly enriched in shelf waters and in the Transpolar Drift (TPD) and its half-life (5.8 years) is well suited to study the fate of this shelf-derived water in the central Arctic. The 228Th/228Ra ratio in the subsurface water column can be used to trace particle fluxes. In previous studies up to PS94 (2015) we had identified the strong and increasing 228Ra signal in the Transpolar Drift. During PS100 we studied the distribution of 228Ra in Fram Strait to investigate how this 228Ra signal in the TPD is changed by dilution and decay on its way to the East Greenland Current. Water from in situ pumps was filtered and passed over MnO2-coated cartridges to absorb the Ra and Th. On board, short-lived Radium isotopes and ... |
format |
Dataset |
author |
Rutgers van der Loeff, Michiel M Stimac, Ingrid Valk, Ole Geibert, Walter Vieira, Lucia Helena |
author_facet |
Rutgers van der Loeff, Michiel M Stimac, Ingrid Valk, Ole Geibert, Walter Vieira, Lucia Helena |
author_sort |
Rutgers van der Loeff, Michiel M |
title |
Radium isotopes and 228Th in water column samples collected on POLARSTERN expedition PS100 ... |
title_short |
Radium isotopes and 228Th in water column samples collected on POLARSTERN expedition PS100 ... |
title_full |
Radium isotopes and 228Th in water column samples collected on POLARSTERN expedition PS100 ... |
title_fullStr |
Radium isotopes and 228Th in water column samples collected on POLARSTERN expedition PS100 ... |
title_full_unstemmed |
Radium isotopes and 228Th in water column samples collected on POLARSTERN expedition PS100 ... |
title_sort |
radium isotopes and 228th in water column samples collected on polarstern expedition ps100 ... |
publisher |
PANGAEA |
publishDate |
2021 |
url |
https://dx.doi.org/10.1594/pangaea.936027 https://doi.pangaea.de/10.1594/PANGAEA.936027 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic East Greenland east greenland current Fram Strait Greenland |
genre_facet |
Arctic East Greenland east greenland current Fram Strait Greenland |
op_relation |
https://dx.doi.org/10.1029/2021gb007191 https://dx.doi.org/10.1038/s41467-021-23093-0 https://dx.doi.org/10.1002/lom3.10428 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.1594/pangaea.93602710.1029/2021gb00719110.1038/s41467-021-23093-010.1002/lom3.10428 |
_version_ |
1795029801706192896 |