Dissolved major element concentration data of the South Pacific Ocean transect during RV SONNE cruise SO289
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
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PANGAEA
2025
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| _version_ | 1867171049595994112 |
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| author | O'Sullivan, Edel Mary Steiner, Zvi |
| author_facet | O'Sullivan, Edel Mary Steiner, Zvi |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | This dataset presents salinity-normalized dissolved major element (Ca, Mg, K, Sr, Li) concentrations along RV SONNE cruise track SO289 in the South Pacific Ocean collected during GEOTRACES GP21 expedition (Valparaiso, Chile- Nouméa, New Caledonia) between February 23 and April 4, 2022. Samples were collected from the trace-metal clean Ti-frame rosette equipped with a Kevlar-coated winch. Samples were filtered through 0.2 µm AcroPak™ 500 filter capsules, collected in acid-cleaned 4 mL PP tubes, and acidified to pH ~2 with trace metal-grade HCl. Samples were analysed for Na, Ca, Mg, K, Li and Sr using a Varian-720 ES ICP-OES. Samples were diluted by a factor of 78-82 in 0.12 M HCl to the same final salinity. Multiple spectral lines were selected for each element, and samples were corrected for instrumental drift by sample-standard bracketing with IAPSO P157 diluted to the same final salinity. Calibration was performed on 7 dilutions of IAPSO P157. Element-to-sodium ratios were calculated for all combinations of spectral lines. Assuming a constant Na-to-salinity (PSU)=35 ratio, the element/Na ratios were multiplied by 0.46847 µmol kg-1 to obtain the salinity (PSU)-normalized element concentration, and by the ratio of practical to absolute salinity (TEOS-10). The TEOS-10 absolute salinities were calculated from EOS-80 values using the Gibb's Oceanographic Toolbox using the R package 'gsw' (v 1.1-1). |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_977809 |
| institution | PANGAEA |
| language | en |
| publishDate | 2025 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Dissolved major element concentration data of the South Pacific Ocean transect during RV SONNE cruise SO289 O'Sullivan, Edel Mary Steiner, Zvi calcium; Calcium; Calculated; CTD; CTD/Rosette; CTD-RO; DEPTH, water; Event label; FISH; Fish undulating, recording system tow; GEOTRACES; GEOTRACES GP21; Global marine biogeochemical cycles of trace elements and their isotopes; ICP-OES, VARIAN 720-ES; LATITUDE; Lithium; LONGITUDE; Magnesium; major elements; Potassium; Profile ID; Salinity; Salinity, absolute; Sample code/label; SO289; SO289_0_Underway-3; SO289_10-1; SO289_10-3; SO289_1-1; SO289_11-1; SO289_12-3; SO289_13-1; SO289_13-3; SO289_14-1; SO289_15-1; SO289_16-1; SO289_16-3; SO289_17-1; SO289_18-1; SO289_19-1; SO289_19-3; SO289_20-1; SO289_20-3; SO289_21-1; SO289_2-2; SO289_22-3; SO289_23-3; SO289_24-1; SO289_24-3; SO289_25-1; SO289_26-1; SO289_26-3; SO289_27-1; SO289_27-3; SO289_28-1; SO289_29-1; SO289_29-3; SO289_30-1; SO289_31-1; SO289_31-3; SO289_3-2; SO289_32-1; SO289_32-3; SO289_3-3; SO289_33-1; SO289_33-3; SO289_34-1; SO289_35-1; SO289_36-3; SO289_37-1; SO289_38-1; SO289_38-3; SO289_39-1; SO289_39-3; SO289_40-1; SO289_40-3; SO289_41-1; SO289_41-3; SO289_42-1; SO289_42-3; SO289_43-1; SO289_43-3; SO289_44-3; SO289_5-2; SO289_5-4; SO289_6-1; SO289_6-3; SO289_7-1; SO289_8-1; SO289_8-3; SO289_9-1; SO289_9-3; Sonne_2; South Pacific; South Pacific Ocean; Standard deviation; Strontium; Temperature, water This dataset presents salinity-normalized dissolved major element (Ca, Mg, K, Sr, Li) concentrations along RV SONNE cruise track SO289 in the South Pacific Ocean collected during GEOTRACES GP21 expedition (Valparaiso, Chile- Nouméa, New Caledonia) between February 23 and April 4, 2022. Samples were collected from the trace-metal clean Ti-frame rosette equipped with a Kevlar-coated winch. Samples were filtered through 0.2 µm AcroPak™ 500 filter capsules, collected in acid-cleaned 4 mL PP tubes, and acidified to pH ~2 with trace metal-grade HCl. Samples were analysed for Na, Ca, Mg, K, Li and Sr using a Varian-720 ES ICP-OES. Samples were diluted by a factor of 78-82 in 0.12 M HCl to the same final salinity. Multiple spectral lines were selected for each element, and samples were corrected for instrumental drift by sample-standard bracketing with IAPSO P157 diluted to the same final salinity. Calibration was performed on 7 dilutions of IAPSO P157. Element-to-sodium ratios were calculated for all combinations of spectral lines. Assuming a constant Na-to-salinity (PSU)=35 ratio, the element/Na ratios were multiplied by 0.46847 µmol kg-1 to obtain the salinity (PSU)-normalized element concentration, and by the ratio of practical to absolute salinity (TEOS-10). The TEOS-10 absolute salinities were calculated from EOS-80 values using the Gibb's Oceanographic Toolbox using the R package 'gsw' (v 1.1-1). |
| title | Dissolved major element concentration data of the South Pacific Ocean transect during RV SONNE cruise SO289 |
| topic | calcium; Calcium; Calculated; CTD; CTD/Rosette; CTD-RO; DEPTH, water; Event label; FISH; Fish undulating, recording system tow; GEOTRACES; GEOTRACES GP21; Global marine biogeochemical cycles of trace elements and their isotopes; ICP-OES, VARIAN 720-ES; LATITUDE; Lithium; LONGITUDE; Magnesium; major elements; Potassium; Profile ID; Salinity; Salinity, absolute; Sample code/label; SO289; SO289_0_Underway-3; SO289_10-1; SO289_10-3; SO289_1-1; SO289_11-1; SO289_12-3; SO289_13-1; SO289_13-3; SO289_14-1; SO289_15-1; SO289_16-1; SO289_16-3; SO289_17-1; SO289_18-1; SO289_19-1; SO289_19-3; SO289_20-1; SO289_20-3; SO289_21-1; SO289_2-2; SO289_22-3; SO289_23-3; SO289_24-1; SO289_24-3; SO289_25-1; SO289_26-1; SO289_26-3; SO289_27-1; SO289_27-3; SO289_28-1; SO289_29-1; SO289_29-3; SO289_30-1; SO289_31-1; SO289_31-3; SO289_3-2; SO289_32-1; SO289_32-3; SO289_3-3; SO289_33-1; SO289_33-3; SO289_34-1; SO289_35-1; SO289_36-3; SO289_37-1; SO289_38-1; SO289_38-3; SO289_39-1; SO289_39-3; SO289_40-1; SO289_40-3; SO289_41-1; SO289_41-3; SO289_42-1; SO289_42-3; SO289_43-1; SO289_43-3; SO289_44-3; SO289_5-2; SO289_5-4; SO289_6-1; SO289_6-3; SO289_7-1; SO289_8-1; SO289_8-3; SO289_9-1; SO289_9-3; Sonne_2; South Pacific; South Pacific Ocean; Standard deviation; Strontium; Temperature, water |
| url | https://doi.org/10.1594/PANGAEA.977809 |