Radium isotopes and 228Th in water column samples collected on POLARSTERN expedition PS94
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. 224Ra (3.7-day...
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PANGAEA - Data Publisher for Earth & Environmental Science
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ftdatacite:10.1594/pangaea.936050 2023-05-15T15:11:47+02:00 Radium isotopes and 228Th in water column samples collected on POLARSTERN expedition PS94 Rutgers van der Loeff, Michiel M Stimac, Ingrid Bauch, Dorothea Valk, Ole Geibert, Walter Vieira, Lucia Helena 2021 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.936050 https://doi.pangaea.de/10.1594/PANGAEA.936050 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1029/2018jc013888 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY 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 excess Radium-224 excess, standard deviation Radium-224 Radium-224, standard deviation Radium-226 Radium-226, standard deviation Radium-228 Radium-228, standard deviation Radium-224/Radium-228 ratio Radium-224/Radium-228 ratio, error Depth, relative Salinity Temperature, water, potential δ18O, water Fraction In situ pump Water pump RaDeCC Gamma spectroscopy PS94 Polarstern Global marine biogeochemical cycles of trace elements and their isotopes GEOTRACES dataset Dataset 2021 ftdatacite https://doi.org/10.1594/pangaea.936050 https://doi.org/10.1029/2018jc013888 2022-02-08T12:07:57Z 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. 224Ra (3.7-day half-life) and 223Ra (11.4-day half-life) are used extensively as tracers for interaction on the shelf and for submarine groundwater discharge (SGD). 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. This dataset collected in the framework of GEOTRACES during PS94 in 2015 shows that the input of 228Ra in the TPD has increased since previous studies in 2007 and 2011. The distribution of 228Ra-daughter 228Th (1.9 y half-life) and the 228Th/228Ra ratio are measured to trace particle fluxes. The accumulation of 226Ra (1620 y half-life) in the deep Makarov Basin can be used as a measure of basin ventilation time. Dataset Arctic makarov basin DataCite Metadata Store (German National Library of Science and Technology) Arctic Makarov Basin ENVELOPE(170.000,170.000,87.000,87.000) |
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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 excess Radium-224 excess, standard deviation Radium-224 Radium-224, standard deviation Radium-226 Radium-226, standard deviation Radium-228 Radium-228, standard deviation Radium-224/Radium-228 ratio Radium-224/Radium-228 ratio, error Depth, relative Salinity Temperature, water, potential δ18O, water Fraction In situ pump Water pump RaDeCC Gamma spectroscopy PS94 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 excess Radium-224 excess, standard deviation Radium-224 Radium-224, standard deviation Radium-226 Radium-226, standard deviation Radium-228 Radium-228, standard deviation Radium-224/Radium-228 ratio Radium-224/Radium-228 ratio, error Depth, relative Salinity Temperature, water, potential δ18O, water Fraction In situ pump Water pump RaDeCC Gamma spectroscopy PS94 Polarstern Global marine biogeochemical cycles of trace elements and their isotopes GEOTRACES Rutgers van der Loeff, Michiel M Stimac, Ingrid Bauch, Dorothea Valk, Ole Geibert, Walter Vieira, Lucia Helena Radium isotopes and 228Th in water column samples collected on POLARSTERN expedition PS94 |
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 excess Radium-224 excess, standard deviation Radium-224 Radium-224, standard deviation Radium-226 Radium-226, standard deviation Radium-228 Radium-228, standard deviation Radium-224/Radium-228 ratio Radium-224/Radium-228 ratio, error Depth, relative Salinity Temperature, water, potential δ18O, water Fraction In situ pump Water pump RaDeCC Gamma spectroscopy PS94 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. 224Ra (3.7-day half-life) and 223Ra (11.4-day half-life) are used extensively as tracers for interaction on the shelf and for submarine groundwater discharge (SGD). 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. This dataset collected in the framework of GEOTRACES during PS94 in 2015 shows that the input of 228Ra in the TPD has increased since previous studies in 2007 and 2011. The distribution of 228Ra-daughter 228Th (1.9 y half-life) and the 228Th/228Ra ratio are measured to trace particle fluxes. The accumulation of 226Ra (1620 y half-life) in the deep Makarov Basin can be used as a measure of basin ventilation time. |
format |
Dataset |
author |
Rutgers van der Loeff, Michiel M Stimac, Ingrid Bauch, Dorothea Valk, Ole Geibert, Walter Vieira, Lucia Helena |
author_facet |
Rutgers van der Loeff, Michiel M Stimac, Ingrid Bauch, Dorothea 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 PS94 |
title_short |
Radium isotopes and 228Th in water column samples collected on POLARSTERN expedition PS94 |
title_full |
Radium isotopes and 228Th in water column samples collected on POLARSTERN expedition PS94 |
title_fullStr |
Radium isotopes and 228Th in water column samples collected on POLARSTERN expedition PS94 |
title_full_unstemmed |
Radium isotopes and 228Th in water column samples collected on POLARSTERN expedition PS94 |
title_sort |
radium isotopes and 228th in water column samples collected on polarstern expedition ps94 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2021 |
url |
https://dx.doi.org/10.1594/pangaea.936050 https://doi.pangaea.de/10.1594/PANGAEA.936050 |
long_lat |
ENVELOPE(170.000,170.000,87.000,87.000) |
geographic |
Arctic Makarov Basin |
geographic_facet |
Arctic Makarov Basin |
genre |
Arctic makarov basin |
genre_facet |
Arctic makarov basin |
op_relation |
https://dx.doi.org/10.1029/2018jc013888 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.936050 https://doi.org/10.1029/2018jc013888 |
_version_ |
1766342578490310656 |