Antarctic δ18Oice and atmospheric temperature stacks of the WD, EDC, and EDML ice cores

DOI

This dataset consists in two stacks of three Antarctic records (EDC, EDML, and WD), one for δ18Oice and the other for atmospheric temperature: both stacks are provided with their stacking uncertainties. To build the Antarctic δ18Oice stack, the Antarctic δ18Oice records were resampled every 10 years before centering to zero means and normalization to unit standard deviations over the 140–0 ka BP period (68–0 ka BP for WD). To optimize the continuity between the portions with and without the WD ice core, the Antarctic δ18Oice records were centered to zero means over the 68–67 ka BP period. The resulting Antarctic δ18Oice records were then averaged and stacking uncertainties were calculated as the pooled standard deviation of the stacked Antarctic δ18Oice records divided by the square root of the number of stacked Antarctic δ18Oice records. The final Antarctic δ18Oice stack, expressed in ‰, has the same standard deviation as the δ18Oice record from EDML over the 140–0 ka BP period, and has a zero mean over the 1–0 ka BP. The Antarctic atmospheric temperature stack was built like the Antarctic δ18Oice stack, except that the Antarctic δ18Oice records were corrected for seawater δ18Oice variations before conversion into atmospheric temperature. The employed age model is the one of Davtian and Bard (2023) for Greenland and Antarctic ice-core records.

Identifier
DOI https://doi.org/10.1594/PANGAEA.957368
Related Identifier https://doi.org/10.1594/PANGAEA.957377
Related Identifier https://doi.org/10.1073/pnas.2209558120
Related Identifier https://doi.org/10.1038/nature05301
Related Identifier https://doi.org/10.1038/nature14401
Related Identifier https://doi.org/10.1016/j.quascirev.2009.10.009
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.957368
Provenance
Creator Davtian, Nina ORCID logo; Bard, Edouard ORCID logo
Publisher PANGAEA
Publication Year 2023
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Language English
Resource Type Dataset
Format text/tab-separated-values
Size 69900 data points
Discipline Earth System Research
Spatial Coverage (-112.110W, -79.480S, 123.350E, -75.002N); Dome C, Antarctica; Antarctica, west
Temporal Coverage Begin 1993-01-01T00:00:00Z
Temporal Coverage End 2006-01-17T00:00:00Z