van Kaam, Rianne: 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)
Abstract:
Sorption experiments were conducted to investigate the effect of dust deposition in the ocean on the concentration of dissolved organic carbon (DOC). This dataset includes the characterization of dust samples collected from the dry riverbeds of the ephemeral rivers Kuiseb and Omaruru in Namibia in April 2023, as well as the results of the sorption experiments. Dust samples were collected in the form of silt crust from two locations along the Kuiseb River, near the Gobabeb research station and Rooibank, and from one location along the Omaruru River. The samples were gently loosened and sieved through a 63 µm mesh sieve, and only the <63 µm fraction was used for dust characterization and sorption experiments. Two types of sorption experiments were performed. To analyse the release of OC, dust was added to artificial seawater. In addition, time series were performed in which dust was added to a solution of artificial seawater and 13C-labeled Spirulina extract.
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: -22.759973 * Median Longitude: 14.764540 * 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
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Size:
9 datasets
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Datasets listed in this bundled publication
- van Kaam, R (in review): Elemental composition analyzed by total digestion of dust samples from ephemeral rivers in Namibia. https://doi.pangaea.de/10.1594/PANGAEA.972487
- van Kaam, R (in review): Elemental Composition analyzed by XRF of dust samples from ephemeral rivers in Namibia. https://doi.pangaea.de/10.1594/PANGAEA.972433
- van Kaam, R (in review): Grain size distribution of dust samples from ephemeral rivers in Namibia. https://doi.pangaea.de/10.1594/PANGAEA.972430
- van Kaam, R (in review): Total organic carbon, δ13C values and specific surface area of dust samples from ephemeral rivers in Namibia. https://doi.pangaea.de/10.1594/PANGAEA.972424
- van Kaam, R (in review): Results of sorption experiments on dust samples from ephemeral rivers in Namibia - Release of organic carbon. https://doi.pangaea.de/10.1594/PANGAEA.972438
- van Kaam, R (in review): Total organic carbon and stable carbon isotopes of dust samples from ephemeral rivers in Namibia analyzed after the sorption experiment. https://doi.pangaea.de/10.1594/PANGAEA.972505
- van Kaam, R (in review): Total organic carbon and stable carbon isotopes of dust samples from ephemeral rivers in Namibia analyzed before the sorption experiment. https://doi.pangaea.de/10.1594/PANGAEA.972498
- van Kaam, R (in review): Results of sorption experiments on dust samples from ephemeral rivers in Namibia - Time series-100 mg dust. https://doi.pangaea.de/10.1594/PANGAEA.972497
- van Kaam, R (in review): Results of sorption experiments on dust samples from ephemeral rivers in Namibia - Time series-5 mg dust. https://doi.pangaea.de/10.1594/PANGAEA.972484