Radium isotopes and 228Th in surface water samples collected on POLARSTERN expedition PS78
228Ra is strongly enriched in shelf waters and its half-life (5.8 years) is well suited to study the fate of shelf-derived water in the central Arctic. During PS78 (TRANSARC I) we studied the distribution of 228Ra in surface waters of the central Arctic to investigate how this 228Ra signal is transp...
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ftdatacite:10.1594/pangaea.935963 2023-05-15T14:50:49+02:00 Radium isotopes and 228Th in surface water samples collected on POLARSTERN expedition PS78 Rutgers van der Loeff, Michiel M Stimac, Ingrid Charkin, Alexander N Bauch, Dorothea 2021 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.935963 https://doi.pangaea.de/10.1594/PANGAEA.935963 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 Arctic Radium Thorium TPD Event label Station label DATE/TIME LATITUDE LONGITUDE DEPTH, water Depth, bathymetric Radium-224 Radium-224, standard deviation Radium-226 Radium-226, standard deviation Radium-228 Radium-228, standard deviation Salinity Temperature, water, potential δ18O, water Fraction Ships non-toxic pump Water pump RaDeCC Gamma spectroscopy ARK-XXVI/3 Polarstern dataset Dataset 2021 ftdatacite https://doi.org/10.1594/pangaea.935963 https://doi.org/10.1029/2018jc013888 2022-02-08T12:07:57Z 228Ra is strongly enriched in shelf waters and its half-life (5.8 years) is well suited to study the fate of shelf-derived water in the central Arctic. During PS78 (TRANSARC I) we studied the distribution of 228Ra in surface waters of the central Arctic to investigate how this 228Ra signal is transported in the Transpolar Drift. Water from the ships' seawater intake (Sta 196, 205) or from a submersible pump lowered to 10m depth on hydrographic stations (from station 209 onwards) was filtered and passed over MnO2-coated cartridges to absorb Radium and Thorium. Short-lived 224Ra, as analog for the total concentration of its parent 228Th, was determined on board with RaDeCC counting. In the lab, the cartridges were leached and long-lived Radium isotopes were measured by gamma spectroscopy. Dataset Arctic DataCite Metadata Store (German National Library of Science and Technology) Arctic |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Arctic Radium Thorium TPD Event label Station label DATE/TIME LATITUDE LONGITUDE DEPTH, water Depth, bathymetric Radium-224 Radium-224, standard deviation Radium-226 Radium-226, standard deviation Radium-228 Radium-228, standard deviation Salinity Temperature, water, potential δ18O, water Fraction Ships non-toxic pump Water pump RaDeCC Gamma spectroscopy ARK-XXVI/3 Polarstern |
spellingShingle |
Arctic Radium Thorium TPD Event label Station label DATE/TIME LATITUDE LONGITUDE DEPTH, water Depth, bathymetric Radium-224 Radium-224, standard deviation Radium-226 Radium-226, standard deviation Radium-228 Radium-228, standard deviation Salinity Temperature, water, potential δ18O, water Fraction Ships non-toxic pump Water pump RaDeCC Gamma spectroscopy ARK-XXVI/3 Polarstern Rutgers van der Loeff, Michiel M Stimac, Ingrid Charkin, Alexander N Bauch, Dorothea Radium isotopes and 228Th in surface water samples collected on POLARSTERN expedition PS78 |
topic_facet |
Arctic Radium Thorium TPD Event label Station label DATE/TIME LATITUDE LONGITUDE DEPTH, water Depth, bathymetric Radium-224 Radium-224, standard deviation Radium-226 Radium-226, standard deviation Radium-228 Radium-228, standard deviation Salinity Temperature, water, potential δ18O, water Fraction Ships non-toxic pump Water pump RaDeCC Gamma spectroscopy ARK-XXVI/3 Polarstern |
description |
228Ra is strongly enriched in shelf waters and its half-life (5.8 years) is well suited to study the fate of shelf-derived water in the central Arctic. During PS78 (TRANSARC I) we studied the distribution of 228Ra in surface waters of the central Arctic to investigate how this 228Ra signal is transported in the Transpolar Drift. Water from the ships' seawater intake (Sta 196, 205) or from a submersible pump lowered to 10m depth on hydrographic stations (from station 209 onwards) was filtered and passed over MnO2-coated cartridges to absorb Radium and Thorium. Short-lived 224Ra, as analog for the total concentration of its parent 228Th, was determined on board with RaDeCC counting. In the lab, the cartridges were leached and long-lived Radium isotopes were measured by gamma spectroscopy. |
format |
Dataset |
author |
Rutgers van der Loeff, Michiel M Stimac, Ingrid Charkin, Alexander N Bauch, Dorothea |
author_facet |
Rutgers van der Loeff, Michiel M Stimac, Ingrid Charkin, Alexander N Bauch, Dorothea |
author_sort |
Rutgers van der Loeff, Michiel M |
title |
Radium isotopes and 228Th in surface water samples collected on POLARSTERN expedition PS78 |
title_short |
Radium isotopes and 228Th in surface water samples collected on POLARSTERN expedition PS78 |
title_full |
Radium isotopes and 228Th in surface water samples collected on POLARSTERN expedition PS78 |
title_fullStr |
Radium isotopes and 228Th in surface water samples collected on POLARSTERN expedition PS78 |
title_full_unstemmed |
Radium isotopes and 228Th in surface water samples collected on POLARSTERN expedition PS78 |
title_sort |
radium isotopes and 228th in surface water samples collected on polarstern expedition ps78 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2021 |
url |
https://dx.doi.org/10.1594/pangaea.935963 https://doi.pangaea.de/10.1594/PANGAEA.935963 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
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.935963 https://doi.org/10.1029/2018jc013888 |
_version_ |
1766321857518108672 |