Water isotopes record from ICORDA-LDC firn core from Little Dome C, Antarctica

DOI

In preparation for the deep drilling of the Beyond Epica Oldest Ice deep ice core, surface cores were drilled at Little Dome C drilling site to characterise how the climate signal is recorded in the firn. The ICORDA-LDC firn core (75°17.586 S, 122°24.808 E) was drilled in January 2023. We present the isotopic profile of the water from the core. The measurements from the first 3 metres of the core were taken using discrete sampling, whilst the measurements from the following 81 metres were obtained using continuous flow analysis. The measurements were carried out in 2024 at the Laboratory of Climate and Environmental Sciences (Saclay, France).

Identifier
DOI https://doi.pangaea.de/10.1594/PANGAEA.993901
Related Identifier References https://doi.org/10.5194/egusphere-2026-871
Related Identifier References https://doi.pangaea.de/10.1594/PANGAEA.993899
Related Identifier References https://doi.pangaea.de/10.1594/PANGAEA.993900
Related Identifier References https://doi.pangaea.de/10.1594/PANGAEA.993902
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.993901
Provenance
Creator Samin, Emma; Landais, Amaëlle ORCID logo; Fourré, Elise; Combacal, Thomas; Minster, Bénédicte; Gautier, Elsa ORCID logo; Jossoud, Olivier; Jacob, Roxanne; Orsi, Anaïs ORCID logo; Possenti, Philippe; Alemany, Olivier
Publisher PANGAEA
Publication Year 2026
Funding Reference Centre National de la Recherche Scientifique https://doi.org/10.13039/501100004794 Crossref Funder ID PROXYNNOV CNRS LEFE PROXYNNOV; European Research Council https://doi.org/10.13039/501100000781 Crossref Funder ID 1250 https://institut-polaire.fr/fr/programmes_soutenus/campagnes-de-pompage-dair-du-neve-pour-ameliorer-les-contraintes-de-datation-des-carottes-de-glace-profondes-projet-icorda-et-pour-identifier-la-signature-de-lactivite-passee-des-vents-catabatiq/ ICORDA-KATABATIC; European Research Council https://doi.org/10.13039/501100000781 Crossref Funder ID 817493 https://doi.org/10.3030/817493 ICORDA - Ice CORe DAting tools revisited to infer the dynamic of glacial – interglacial transitions over the last 1.5 million years; Horizon 2020 https://doi.org/10.13039/501100007601 Crossref Funder ID 815384 https://doi.org/10.3030/815384 Beyond EPICA
Rights Creative Commons Attribution 4.0 International; Data access is restricted (moratorium, sensitive data, license constraints); https://creativecommons.org/licenses/by/4.0/
OpenAccess false
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 1483251 data points
Discipline Earth System Research
Spatial Coverage (122.413 LON, -75.293 LAT); Little Dome C
Temporal Coverage Begin 2023-01-06T00:00:00Z
Temporal Coverage End 2023-01-17T00:00:00Z