Total suspended matter, particulate organic carbon and its isotopic composition in the Lena River and its Delta

Total Suspended Matter (TSM), Particulate Organic Carbon (POC) and its isotopic composition were measured in water samples from the Lena River and its Delta (Sardakhskaya branch). Samples were taken in summer 2019 during the CACOON expedition (Fuchs et al., 2021a, b and 2022) along ~ 1600 km transect from Yakutsk downstream to the Lena Delta disembogue into the Laptev Sea. Water was filtered through pre-combusted (4.5 hours, 450 °C) and pre-weighed glass fiber filters (GF/F Whatman, 0.75 µm membrane, Ø 2.5 cm) for TSM content (difference in weights between dried filters with TSM and pre-weighed empty filters), POC concentration and δ13C-POC (Sercon 20-20 isotope ratio mass spectrometer coupled to an Automated Nitrogen Carbon Analyzer), ∆14C-POC analysis (accelerator mass spectrometer achieved on a Mini Carbon Dating System) and relative OC content in TSM (calculated by dividing the sample POC content by the TSM content). Our aim was to characterize POC along the Lena River over a transect from upper reaches of the Lena River north to the Lena delta in order to decipher the distribution, main sources, and transformation of POC on its way from the permafrost catchment to the Arctic Ocean.

Identifier
DOI https://doi.org/10.1594/PANGAEA.950668
PID https://hdl.handle.net/10013/epic.d1de7569-5933-48d7-96bd-3c2155e3d1b8
Related Identifier References https://doi.org/10.5194/essd-14-2279-2022
Related Identifier References https://doi.org/10.1594/PANGAEA.933187
Related Identifier References https://doi.org/10.5194/bg-20-1423-2023
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.950668
Provenance
Creator Ogneva, Olga ORCID logo; Mollenhauer, Gesine (ORCID: 0000-0001-5138-564X); Juhls, Bennet ORCID logo; Sanders, Tina ORCID logo; Palmtag, Juri ORCID logo; Fuchs, Matthias ORCID logo; Grotheer, Hendrik ORCID logo; Mann, Paul James ORCID logo; Strauss, Jens ORCID logo
Publisher PANGAEA
Publication Year 2022
Funding Reference Federal Ministry of Education and Research https://doi.org/10.13039/501100002347 Crossref Funder ID 03F0806A https://foerderportal.bund.de/foekat/jsp/SucheAction.do?actionMode=view&fkz=03F0806A WTZ Großbritannien: CACOON - Veränderung des arktischen Kohlenstoffkreislaufs im küstennahen Ozean; Natural Environment Research Council https://doi.org/10.13039/501100000270 Crossref Funder ID NE/R012806/1 Changing Arctic Carbon cycle in the cOastal Ocean Near-shore
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 155 data points
Discipline Earth System Research
Spatial Coverage (123.421W, 62.167S, 129.910E, 72.634N); Lena Delta, Siberia
Temporal Coverage Begin 2019-06-20T00:00:00Z
Temporal Coverage End 2019-08-09T00:00:00Z