The Cryosphere
The Cryosphere
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Articles | Volume 14, issue 12
Articles | Volume 14, issue 12
https://doi.org/10.5194/tc-14-4495-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-14-4495-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 14, issue 12
Research article
 | 
08 Dec 2020
Research article |  | 08 Dec 2020

The role of electrical conductivity in radar wave reflection from glacier beds

Slawek M. Tulaczyk and Neil T. Foley

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Cited articles

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Arcone, S., Grant, S., Boitnott, G., and Bostick, B.: Complex permittivity and clay mineralogy of grain-size fractions in a wet silt soil, Geophys., 73, J1–J13, 2008. 
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Much of what we know about materials hidden beneath glaciers and ice sheets on Earth has been interpreted using radar reflection from the ice base. A common assumption is that electrical conductivity of the sub-ice materials does not influence the reflection strength and that the latter is controlled only by permittivity, which depends on the fraction of water in these materials. Here we argue that sub-ice electrical conductivity should be generally considered when interpreting radar records.
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