The Cryosphere
The Cryosphere
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Articles | Volume 20, issue 1
Articles | Volume 20, issue 1
https://doi.org/10.5194/tc-20-453-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-20-453-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 20, issue 1
Research article
 | 
21 Jan 2026
Research article |  | 21 Jan 2026

Basal unit radar characteristics at the southern flank of Dome A, East Antarctica

Shuai Yan, Duncan A. Young, Donald D. Blankenship, Tyler J. Fudge, Duyi Li, Laura Lindzey, Hunter Reeves, Alejandra Vega-Gonzalez, Shivangini Singh, Megan Kerr, Emily Wilbur, and Michelle Koutnik

Data sets

NSF COLDEX Raw MARFA Ice Penetrating Radar data D. A. Young et al. https://doi.org/10.15784/601768

NSF COLDEX Ice Penetrating Radar Derived Grids of the Southern Flank of Dome A D. A. Young et al. https://doi.org/10.18738/T8/M77ANK

Basal Ice Unit Thickness Mapped by the NSF COLDEX MARFA Ice Penetrating Radar S. Yan et al. https://doi.org/10.15784/601912

Fractional Thickness of Incoherent Scattering Within the Basal Unit Mapped by the NSF COLDEX MARFA Ice-Penetrating Radar S. Yan et al. https://doi.org/10.15784/601972

NSF COLDEX Basal Unit maps derived from delay Doppler proccessing D. Young and S. Yan https://doi.org/10.18738/T8/UJ8TI0

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Short summary
This study examines the radar characteristics of the basal unit along Dome A’s southern flank. Through manual mapping and delay-Doppler analysis, we identifies two basal unit types and maps the spatial variation of incoherent scattering. The results suggest that basal unit radar appearance is influenced by englacial temperature variability and potentially by subglacial geological controls.
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