de.pangaea.dataset972505 und de.pangaea.dataset972507 dataset PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact 2025-08-22T03:22:47Z https://doi.pangaea.de/10.1594/PANGAEA.972505 <gco:CharacterString>Total organic carbon and stable carbon isotopes of dust samples from ephemeral rivers in Namibia analyzed after the sorption experiment</gco:CharacterString> 2025-07-24T11:50:26 publication https://doi.org/10.1594/PANGAEA.972505 van Kaam, Rianne J M
rvankaam@marum.de
https://orcid.org/0000-0002-9410-8447 information author PANGAEA
info@pangaea.de
https://www.pangaea.de/ information publisher tableDigital completed van Kaam, Rianne J M
rvankaam@marum.de
https://orcid.org/0000-0002-9410-8447 information principalInvestigator Adsorption dissolved organic carbon (DOC) Ephemeral river Mineral dust Namibia Sorption experiments theme <gco:CharacterString>PANGAEA Keyword List</gco:CharacterString> 1995-01-01 creation PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact MARUM Center for Marine Environmental Sciences theme <gco:CharacterString>PANGAEA Project List</gco:CharacterString> 1995-01-01 creation PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-4.0: Creative Commons Attribution 4.0 International textTable und geoscientificInformation 14.5084 15.0394 -23.5629 -21.899 2023-04-22T00:00:00 2023-04-23T00:00:00 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‰. Event label thematicClassification Type of study thematicClassification Sample code/label thematicClassification Dust, added physicalMeasurement mg mg Carbon, organic, total physicalMeasurement Isotope ratio mass spectrometry (IRMS), Delta V Plus (Thermo Scientific) coupled via a ConFlo IV interface to an elemental analyser; wt% % % δ13C, total organic carbon physicalMeasurement Isotope ratio mass spectrometry (IRMS), Delta V Plus (Thermo Scientific) coupled via a ConFlo IV interface to an elemental analyser; vs. VPDB ‰ PDB ‰ PDB δ13C, total inorganic carbon physicalMeasurement Isotope ratio infrared spectrometry (IRIS) with universal reference interface (URI) connection, Delta Ray (Thermo Scientific); vs. VPDB ‰ PDB ‰ PDB text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.972505?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: 1-Kuiseb * LATITUDE: -23.562900 * LONGITUDE: 15.039400 * DATE/TIME: 2023-04-22T00:00:00 * LOCATION: Kuiseb, Gobabeb, Namibia * METHOD/DEVICE: Dust sample 2023-04-22T00:00:00 EVENT LABEL: 2-Kuiseb * LATITUDE: -23.166300 * LONGITUDE: 14.633500 * DATE/TIME: 2023-04-23T00:00:00 * LOCATION: Kuiseb, Rooibank, Namibia * METHOD/DEVICE: Dust sample 2023-04-23T00:00:00 EVENT LABEL: 3-Omaruru * LATITUDE: -21.899000 * LONGITUDE: 14.508400 * DATE/TIME: 2023-04-23T00:00:00 * LOCATION: Omaruru, Namibia * METHOD/DEVICE: Dust sample 2023-04-23T00:00:00 Related to <gco:CharacterString>Dust deposition directly affects the concentration of dissolved organic carbon in the ocean</gco:CharacterString> 2025-01-01 publication https://doi.org/10.1016/j.marchem.2025.104531 van Kaam, Rianne J M
rvankaam@marum.de
https://orcid.org/0000-0002-9410-8447 information author Kölling, Martin
koelling@uni-bremen.de
https://orcid.org/0000-0003-2720-2211 information author Elvert, Marcus
melvert@marum.de
https://orcid.org/0000-0003-3863-0975 information author Hinrichs, Kai-Uwe
khinrichs@uni-bremen.de
https://orcid.org/0000-0002-0739-9291 information author Zabel, Matthias
mzabel@uni-bremen.de
https://orcid.org/0000-0003-4681-1821 information author documentDigital Marine Chemistry 271 104531