Radium isotopes and 228Th in surface water samples collected on POLARSTERN expedition PS78
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| Format: | Dataset Open Access |
| Sprache: | en |
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PANGAEA
2021
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| _version_ | 1867169147201257472 |
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| 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 |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | 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 Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_935963 |
| institution | PANGAEA |
| language | en |
| publishDate | 2021 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | 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 Arctic; Arctic Ocean; ARK-XXVI/3; DATE/TIME; Depth, bathymetric; DEPTH, water; Event label; Fraction; Gamma spectroscopy; GPUMP; Laptev Sea; LATITUDE; LONGITUDE; Polarstern; PS78/196-3; PS78/205; PS78/209-5; PS78/212-4; PS78/218-6; PS78/221; PS78/222-6; PS78/224-2; PS78/227-4; PS78/230-6; PS78/232-2; PS78/233-2; PS78/234-2; PS78/235-7; PS78/236-2; PS78/237-2; PS78/239-6; PS78/241-2; PS78/242-3; PS78/243-2; PS78/244-2; PS78/245-6; PS78/246-2; PS78/247-2; PS78/248-3; PS78/249-2; PS78/250-6; PS78/251-2; PS78/252-2; PS78/253-2; PS78/257-2; PS78/259-3; PS78/271-2; PS78/272-4; PS78/273; PS78/274-2; PS78/276-5; PS78/278-2; PS78/280-5; PS78/283-2; PS78/285-5; PS78 TransArc; PUMP; RaDeCC; Radium; Radium-224; Radium-224, standard deviation; Radium-226; Radium-226, standard deviation; Radium-228; Radium-228, standard deviation; Salinity; Ships non-toxic pump; Station label; Temperature, water, potential; Thorium; TPD; Water pump; δ18O, water 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. |
| title | Radium isotopes and 228Th in surface water samples collected on POLARSTERN expedition PS78 |
| topic | Arctic; Arctic Ocean; ARK-XXVI/3; DATE/TIME; Depth, bathymetric; DEPTH, water; Event label; Fraction; Gamma spectroscopy; GPUMP; Laptev Sea; LATITUDE; LONGITUDE; Polarstern; PS78/196-3; PS78/205; PS78/209-5; PS78/212-4; PS78/218-6; PS78/221; PS78/222-6; PS78/224-2; PS78/227-4; PS78/230-6; PS78/232-2; PS78/233-2; PS78/234-2; PS78/235-7; PS78/236-2; PS78/237-2; PS78/239-6; PS78/241-2; PS78/242-3; PS78/243-2; PS78/244-2; PS78/245-6; PS78/246-2; PS78/247-2; PS78/248-3; PS78/249-2; PS78/250-6; PS78/251-2; PS78/252-2; PS78/253-2; PS78/257-2; PS78/259-3; PS78/271-2; PS78/272-4; PS78/273; PS78/274-2; PS78/276-5; PS78/278-2; PS78/280-5; PS78/283-2; PS78/285-5; PS78 TransArc; PUMP; RaDeCC; Radium; Radium-224; Radium-224, standard deviation; Radium-226; Radium-226, standard deviation; Radium-228; Radium-228, standard deviation; Salinity; Ships non-toxic pump; Station label; Temperature, water, potential; Thorium; TPD; Water pump; δ18O, water |
| url | https://doi.org/10.1594/PANGAEA.935963 |