Viability of chemical and water isotope ratio measurements of RAID ice chippings from Antarctica

The British Antarctic Survey's (BAS) Rapid Access Isotope Drill (RAID), designed for rapid drilling to survey prospective ice core sites, has been deployed at multiple Antarctic locations over 6 years. This drilling method creates ice chippings that can be discretely sampled and analysed for their chemical and water isotopic composition. Ice sampling methods have evolved since the first uses of the BAS RAID, enabling a more quantifiable sample resolution. Here, we show that water isotope records obtained from RAID ice are comparable to those of equivalent depth resolution from proximal ice cores. Records of chemical impurities also show good agreement with nearby cores. Our findings suggest that the RAID is suitable for both chemical and isotopic reconnaissance of drilling sites. Residual contamination of certain ions is discussed, with proposed design changes to avoid this issue with future use.

Details

Publication status:
Published Online
Author(s):
Authors: Rowell, Isobel F., Mulvaney, Robert ORCIDORCID record for Robert Mulvaney, Rix, Julius ORCIDORCID record for Julius Rix, Tetzner, Dieter R. ORCIDORCID record for Dieter R. Tetzner, Wolff, Eric W.

On this site: Dieter Tetzner, Eric Wolff, Julius Rix, Robert Mulvaney
Date:
5 December, 2022
Journal/Source:
Journal of Glaciology
Page(s):
16pp
Link to published article:
https://doi.org/10.1017/jog.2022.94