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Terrain units in eastern Antarctica

Abstract

APPROXIMATELY 12,000,000 km2 of bedrock in Antarctica is inaccessible, except to remote sensing, beneath an ice sheet up to 4.5 km thick. The topographical and geological pattern of the subglacial continent has, consequently, been little investigated and no more than a few geophysical measurements have been obtained. The availability of continuous records of bedrock topography from airborne radio echo sounding, however, now facilitates the calculation of statistics of terrain roughness, which can be used quantitatively to differentiate subglacial regions, to cluster similar units, and to indicate associations or characteristics related to geological factors1.

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DREWRY, D. Terrain units in eastern Antarctica. Nature 256, 194–195 (1975). https://doi.org/10.1038/256194a0

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