The Cryosphere
The Cryosphere
TC
Articles | Volume 17, issue 4
Articles | Volume 17, issue 4
https://doi.org/10.5194/tc-17-1497-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-17-1497-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17, issue 4
Research article
 | 
06 Apr 2023
Research article |  | 06 Apr 2023

High mid-Holocene accumulation rates over West Antarctica inferred from a pervasive ice-penetrating radar reflector

Julien A. Bodart, Robert G. Bingham, Duncan A. Young, Joseph A. MacGregor, David W. Ashmore, Enrica Quartini, Andrew S. Hein, David G. Vaughan, and Donald D. Blankenship

Supplement

https://doi.org/10.5194/tc-17-1497-2023-supplement

Data sets

Gridded depth and accumulation products from dated airborne radar stratigraphy over West Antarctica during the mid-Holocene J. A. Bodart, R. G. Bingham, D. A. Young, J. A. MacGregor, D. W. Ashmore, E. Quartini, D. G. Vaughan, and D. D. Blankenship https://doi.org/10.5281/zenodo.7738654

Radiostratigraphy of the Weddell Sea sector of West Antarctica, v2.0.0 D. W. Ashmore, R. G. Bingham, N. Ross, M. Siegert, T. A. Jordan, and D. W. F. Mair https://doi.org/10.5281/zenodo.4945301

Dated radar stratigraphy of the Pine Island Glacier catchment (West Antarctica) derived from BBAS-PASIN (2004-05) and OIB-MCoRDS2 (2016/2018) surveys, v.1.0.0 J. A. Bodart, R. G. Bingham, D. W. Ashmore, N. B. Karlsson, A. S. Hein, and D. G. Vaughan https://doi.org/10.5285/F2DE31AF-9F83-44F8-9584-F0190A2CC3EB

AGASEA 4.7 ka Englacial Isochron over the Thwaites Glacier Catchment G. Muldoon, D. D. Blankenship, C. Jackson, and D. A. Young https://doi.org/10.15784/601673

Model code and software

Gridded depth and accumulation products from dated airborne radar stratigraphy over West Antarctica during the mid-Holocene J. A. Bodart, R. G. Bingham, D. A. Young, J. A. MacGregor, D. W. Ashmore, E. Quartini, D. G. Vaughan, and D. D. Blankenship https://doi.org/10.5281/zenodo.7738654

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Short summary
Estimating how West Antarctica will change in response to future climatic change depends on our understanding of past ice processes. Here, we use a reflector widely visible on airborne radar data across West Antarctica to estimate accumulation rates over the past 4700 years. By comparing our estimates with current atmospheric data, we find that accumulation rates were 18 % greater than modern rates. This has implications for our understanding of past ice processes in the region.
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