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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2021
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.936050 https://doi.org/10.1594/PANGAEA.936050 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.936050 2023-05-15T14:27:35+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 MEDIAN LATITUDE: 83.019641 * MEDIAN LONGITUDE: 102.570967 * SOUTH-BOUND LATITUDE: 71.000000 * WEST-BOUND LONGITUDE: 21.200000 * NORTH-BOUND LATITUDE: 89.930000 * EAST-BOUND LONGITUDE: -116.830000 * DATE/TIME START: 2015-08-20T00:00:00 * DATE/TIME END: 2015-10-09T00:00:00 * MINIMUM DEPTH, water: 10 m * MAXIMUM DEPTH, water: 4180 m 2021-09-21 text/tab-separated-values, 1501 data points https://doi.pangaea.de/10.1594/PANGAEA.936050 https://doi.org/10.1594/PANGAEA.936050 en eng PANGAEA Rutgers van der Loeff, Michiel M; Kipp, Lauren; Charette, Matthew A; Moore, Willard S; Black, Erin; Stimac, Ingrid; Charkin, Alexander N; Bauch, Dorothea; Valk, Ole; Karcher, Michael J; Krumpen, Thomas; Casacuberta Arola, Núria; Smethie, William M jr; Rember, Robert (2018): Radium isotopes across the Arctic Ocean show time scales of water mass ventilation and increasing shelf inputs. Journal of Geophysical Research: Oceans, 123(7), 4853-4873, https://doi.org/10.1029/2018JC013888 https://doi.pangaea.de/10.1594/PANGAEA.936050 https://doi.org/10.1594/PANGAEA.936050 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Arctic Ocean ARK-XXIX/3 Barents Sea DATE/TIME Depth bathymetric relative water Event label Fraction Gamma spectroscopy GEOTRACES Global marine biogeochemical cycles of trace elements and their isotopes In situ pump In-Situ-Pump ISP LATITUDE LONGITUDE Polarstern PS94 PS94/004-4 PS94/032-8 PS94/050-5 PS94/054 PS94/058 PS94/062 PS94/068 PS94/075 PS94/081-9 PS94/087 PS94/091 PS94/096-5 PS94/099 PS94/101-6 PS94/117-7 PS94/119 PS94/121 PS94/123 PS94/125-8 PS94/129 PS94/132 PS94/134 PS94/135 PS94/136 PS94/137 PS94/138 PS94/139 PS94/140 Dataset 2021 ftpangaea https://doi.org/10.1594/PANGAEA.936050 https://doi.org/10.1029/2018JC013888 2023-01-20T09:15:22Z 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 Arctic Arctic Ocean Barents Sea makarov basin PANGAEA - Data Publisher for Earth & Environmental Science Arctic Arctic Ocean Barents Sea Makarov Basin ENVELOPE(170.000,170.000,87.000,87.000) ENVELOPE(21.200000,-116.830000,89.930000,71.000000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Arctic Ocean ARK-XXIX/3 Barents Sea DATE/TIME Depth bathymetric relative water Event label Fraction Gamma spectroscopy GEOTRACES Global marine biogeochemical cycles of trace elements and their isotopes In situ pump In-Situ-Pump ISP LATITUDE LONGITUDE Polarstern PS94 PS94/004-4 PS94/032-8 PS94/050-5 PS94/054 PS94/058 PS94/062 PS94/068 PS94/075 PS94/081-9 PS94/087 PS94/091 PS94/096-5 PS94/099 PS94/101-6 PS94/117-7 PS94/119 PS94/121 PS94/123 PS94/125-8 PS94/129 PS94/132 PS94/134 PS94/135 PS94/136 PS94/137 PS94/138 PS94/139 PS94/140 |
spellingShingle |
Arctic Ocean ARK-XXIX/3 Barents Sea DATE/TIME Depth bathymetric relative water Event label Fraction Gamma spectroscopy GEOTRACES Global marine biogeochemical cycles of trace elements and their isotopes In situ pump In-Situ-Pump ISP LATITUDE LONGITUDE Polarstern PS94 PS94/004-4 PS94/032-8 PS94/050-5 PS94/054 PS94/058 PS94/062 PS94/068 PS94/075 PS94/081-9 PS94/087 PS94/091 PS94/096-5 PS94/099 PS94/101-6 PS94/117-7 PS94/119 PS94/121 PS94/123 PS94/125-8 PS94/129 PS94/132 PS94/134 PS94/135 PS94/136 PS94/137 PS94/138 PS94/139 PS94/140 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 |
Arctic Ocean ARK-XXIX/3 Barents Sea DATE/TIME Depth bathymetric relative water Event label Fraction Gamma spectroscopy GEOTRACES Global marine biogeochemical cycles of trace elements and their isotopes In situ pump In-Situ-Pump ISP LATITUDE LONGITUDE Polarstern PS94 PS94/004-4 PS94/032-8 PS94/050-5 PS94/054 PS94/058 PS94/062 PS94/068 PS94/075 PS94/081-9 PS94/087 PS94/091 PS94/096-5 PS94/099 PS94/101-6 PS94/117-7 PS94/119 PS94/121 PS94/123 PS94/125-8 PS94/129 PS94/132 PS94/134 PS94/135 PS94/136 PS94/137 PS94/138 PS94/139 PS94/140 |
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 |
publishDate |
2021 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.936050 https://doi.org/10.1594/PANGAEA.936050 |
op_coverage |
MEDIAN LATITUDE: 83.019641 * MEDIAN LONGITUDE: 102.570967 * SOUTH-BOUND LATITUDE: 71.000000 * WEST-BOUND LONGITUDE: 21.200000 * NORTH-BOUND LATITUDE: 89.930000 * EAST-BOUND LONGITUDE: -116.830000 * DATE/TIME START: 2015-08-20T00:00:00 * DATE/TIME END: 2015-10-09T00:00:00 * MINIMUM DEPTH, water: 10 m * MAXIMUM DEPTH, water: 4180 m |
long_lat |
ENVELOPE(170.000,170.000,87.000,87.000) ENVELOPE(21.200000,-116.830000,89.930000,71.000000) |
geographic |
Arctic Arctic Ocean Barents Sea Makarov Basin |
geographic_facet |
Arctic Arctic Ocean Barents Sea Makarov Basin |
genre |
Arctic Arctic Arctic Ocean Barents Sea makarov basin |
genre_facet |
Arctic Arctic Arctic Ocean Barents Sea makarov basin |
op_relation |
Rutgers van der Loeff, Michiel M; Kipp, Lauren; Charette, Matthew A; Moore, Willard S; Black, Erin; Stimac, Ingrid; Charkin, Alexander N; Bauch, Dorothea; Valk, Ole; Karcher, Michael J; Krumpen, Thomas; Casacuberta Arola, Núria; Smethie, William M jr; Rember, Robert (2018): Radium isotopes across the Arctic Ocean show time scales of water mass ventilation and increasing shelf inputs. Journal of Geophysical Research: Oceans, 123(7), 4853-4873, https://doi.org/10.1029/2018JC013888 https://doi.pangaea.de/10.1594/PANGAEA.936050 https://doi.org/10.1594/PANGAEA.936050 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.936050 https://doi.org/10.1029/2018JC013888 |
_version_ |
1766301378779545600 |