Dissolved and Particulate Organic Carbon and its isotopic composition in the Lena Delta in winter 2019 and in summer 2019, 2017 and 2016

Dissolved and particulate Organic Carbon (DOC and POC) and their isotopic composition were measured in water samples from the Lena Delta (Sardakhskaya branch). Samples were taken in winter (April) and summer (August) 2019 during the CACOON expedition (Fuchs et al., 2021a, b and 2022) and in the summer 2017 and 2016 during previous Lena Delta sampling campaigns. 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 DOC analyses, filters with rest suspended matter on it were used to analyse POC. δ13C of DOC and POC was measured by Sercon 20-20 isotope ratio mass spectrometer coupled to an Automated Nitrogen Carbon Analyzer, ∆14C of DOC and POC by accelerator mass spectrometer achieved on a Mini Carbon Dating System. Our aim was to highlight the variability in quantity and composition between seasons and suggest that permafrost deposits are degrading year around, impacting the release of organic matter through the Lena Delta.

DOI https://doi.org/10.1594/PANGAEA.962633
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/10.1594/PANGAEA.950668
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.962633
Creator Ogneva, Olga ORCID logo; Mollenhauer, Gesine (ORCID: 0000-0001-5138-564X); Fuchs, Matthias ORCID logo; Sanders, Tina ORCID logo; Palmtag, Juri ORCID logo; Grotheer, Hendrik ORCID logo; Mann, Paul James ORCID logo; Strauss, Jens ORCID logo
Publisher PANGAEA
Publication Year 2023
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
Resource Type Dataset
Format text/tab-separated-values
Size 494 data points
Discipline Earth System Research
Spatial Coverage (126.679W, 72.396S, 129.864E, 72.633N); Lena Delta, Siberia; Laptev Sea, Siberia
Temporal Coverage Begin 2016-08-08T00:00:00Z
Temporal Coverage End 2019-08-09T00:00:00Z