van Kaam, Rianne: Total organic carbon and stable carbon isotopes of dust samples from ephemeral rivers in Namibia analyzed after the sorption experiment [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.972505 (dataset in review), In: van Kaam, R: Sorption experiments with dissolved organic carbon and characterized dust samples from ephemeral rivers in Namibia [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.972507 (dataset in review)
Keyword(s):
Related to:
van Kaam, Rianne; Kölling, Martin; Elvert, Marcus; Hinrichs, Kai-Uwe; Zabel, Matthias (submitted): Dust deposition directly affects the concentration of dissolved organic carbon in the ocean. Marine Chemistry
Project(s):
Funding:
German Research Foundation (DFG), grant/award no. 390741603: EXC 2077: The Ocean Floor – Earth's Uncharted Interface
Coverage:
Median Latitude: -22.876067 * Median Longitude: 14.727100 * South-bound Latitude: -23.562900 * West-bound Longitude: 14.508400 * North-bound Latitude: -21.899000 * East-bound Longitude: 15.039400
Date/Time Start: 2023-04-22T00:00:00 * Date/Time End: 2023-04-23T00:00:00
Event(s):
1-Kuiseb * Latitude: -23.562900 * Longitude: 15.039400 * Date/Time: 2023-04-22T00:00:00 * Location: Kuiseb, Gobabeb, Namibia * Method/Device: Dust sample (DUST)
Comment:
Different amounts of dust (5 mg and 100 mg) were added to a mixture (30 mL) of artificial seawater and 13C-labeled Spirulina extract (~500 µM). Water samples were taken at multiple time points (0, 10, 24, 48, 72, 120, and 168 hours) and analyzed for DOC using a carbon analyzer (multiN/C 2100s, Analytik Jena). Dust samples were analyzed for TOC and δ13C-TOC before and after the experiments using isotope ratio mass spectrometry (IRMS) (Delta V Plus, Thermo Scientific, with a ConFlo IV interface to an elemental analyzer), calibrated against the Vienna Pee Dee Belemnite (VPDB) standard with a precision of ±0.35‰. After 72 hours, water samples were also analyzed for δ13C-DIC using isotope ratio infrared spectrometry (IRIS) with a universal reference interface (URI) (Delta Ray, Thermo Scientific), calibrated to the VPDB standard with a precision of ±0.05‰.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | van Kaam, Rianne | |||
| 2 | Type of study | Study type | van Kaam, Rianne | |||
| 3 | Sample code/label | Sample label | van Kaam, Rianne | |||
| 4 | Dust, added | Dust add | mg | van Kaam, Rianne | ||
| 5 | Carbon, organic, total | TOC | % | van Kaam, Rianne | Isotope ratio mass spectrometry (IRMS), Delta V Plus (Thermo Scientific) coupled via a ConFlo IV interface to an elemental analyser | wt% |
| 6 | δ13C, total organic carbon | δ13C TOC | ‰ PDB | van Kaam, Rianne | Isotope ratio mass spectrometry (IRMS), Delta V Plus (Thermo Scientific) coupled via a ConFlo IV interface to an elemental analyser | vs. VPDB |
| 7 | δ13C, total inorganic carbon | δ13C TIC | ‰ PDB | van Kaam, Rianne | Isotope ratio infrared spectrometry (IRIS) with universal reference interface (URI) connection, Delta Ray (Thermo Scientific) | vs. VPDB |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
90 data points