Articles | Volume 18, issue 4
Research article
12 Apr 2024
Research article |  | 12 Apr 2024

Alpine topography of the Gamburtsev Subglacial Mountains, Antarctica, mapped from ice sheet surface morphology

Edmund J. Lea, Stewart S. R. Jamieson, and Michael J. Bentley

Data sets

Mapping outputs Edmund J. Lea

BEDMAP2 - Ice thickness, bed and surface elevation for Antarctica - gridding products (Version 1.0) P. Fretwell et al.

MEaSUREs BedMachine Antarctica M. Morlighem

The Reference Elevation Model of Antarctica ( I. M. Howat et al.

RAMP AMM-1 SAR Image Mosaic of Antarctica K. Jezek et al.

Antarctica's Gamburtsev Province (AGAP) Project - Radio-echo sounding data (2007-2009) H. Corr et al.

Model code and software

ArcGIS toolbox Edmund J. Lea

Short summary
We use the ice surface expression of the Gamburtsev Subglacial Mountains in East Antarctica to map the horizontal pattern of valleys and ridges in finer detail than possible from previous methods. In upland areas, valleys are spaced much less than 5 km apart, with consequences for the distribution of melting at the bed and hence the likelihood of ancient ice being preserved. Automated mapping techniques were tested alongside manual approaches, with a hybrid approach recommended for future work.