The map will guide future radar surveys and improve computer models of ice flow, helping predict Antarctic contributions to global sea-level rise, though further surveys are needed
map will guide future radar surveys. Representational pic/iStock
Researchers have published the most complete map of Antarctica’s subglacial bedrock using Ice Flow Perturbation Analysis (IFPA), revealing thousands of unseen hills and ridges in the Maud Subglacial Basin, averaging 50 metres deep and 6 km wide.
The map will guide future radar surveys and improve computer models of ice flow, helping predict Antarctic contributions to global sea-level rise, though further surveys are needed.
However, despite its advances, the IFPA method relies on ice-flow assumptions that introduce uncertainties, and radar surveys — which are sparse and costly — remain best for finer features.
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