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

Rowell, Isobel F.; Mulvaney, Robert ORCID: https://orcid.org/0000-0002-5372-8148; Rix, Julius ORCID: https://orcid.org/0000-0002-8048-9445; Tetzner, Dieter R. ORCID: https://orcid.org/0000-0001-7659-8799; Wolff, Eric W.. 2023 Viability of chemical and water isotope ratio measurements of RAID ice chippings from Antarctica. Journal of Glaciology, 69 (275). 623-638. 10.1017/jog.2022.94

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© The Author(s), 2022. Published by Cambridge University Press on behalf of The International Glaciological Society. This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution and reproduction, provided the original article is properly cited.
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Abstract/Summary

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.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.1017/jog.2022.94
ISSN:	0022-1430
Additional Keywords:	Antarctic glaciology, ice core, ice coring, palaeoclimate, snow and ice chemistry
Date made live:	20 Dec 2022 12:46 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/533496

Item Type:

Publication - Article

Digital Object Identifier (DOI):

10.1017/jog.2022.94

ISSN:

0022-1430

Additional Keywords:

Antarctic glaciology, ice core, ice coring, palaeoclimate, snow and ice chemistry

Date made live:

20 Dec 2022 12:46 +0 (UTC)

URI:

https://nora.nerc.ac.uk/id/eprint/533496