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East Antarctica Melt Accelerates: Winds, Clouds Drive Lake-Ponding

4/28/2026

Summary

Scientists Map Meltwater

Scientists studied Antarctic Ice Sheet mass balance over four decades, 1979-2017.
Researchers examined East Antarctica’s response to past and future climate change.
Investigators documented widespread meltwater movement onto and across Antarctic ice shelves.
Mapping showed increasing sensitivity of East Antarctica to supraglacial lake ponding.
Climatologists found that katabatic and foehn winds in Dronning Maud Land, together with cloud cover, control supraglacial lake distribution and future surface melt on Antarctic ice shelves.

Summary

Scientists Link Heatwave

Researchers found that the 2020 Antarctic Peninsula heatwave was amplified by human-induced climate warming.
The March 2022 event in East Antarctica set a continent-wide record for surface temperature extremes.
Atmospheric-river incursions combined with foehn winds produced the strongest shortwave-radiation spikes ever recorded on the Peninsula.
NASA identified rare 2024 stratospheric disturbances that can precondition Antarctic heat extremes.

Summary

Scientists Test Reanalysis

A 2022 Climate Dynamics study questions whether reanalysis products can accurately portray the Southern Annular Mode before 1979, exposing gaps in the historical record.
The 2024 launch of JRA-3Q reanalysis adds a new Antarctic atmospheric dataset, though its performance versus existing reanalyses is still under assessment.
A 2025 study links early-winter Antarctic sea-ice loss to stratospheric polar-vortex disturbances, indicating surface changes can propagate upward and challenge model representation.

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Scientists Map Meltwater

Scientists studied Antarctic Ice Sheet mass balance over four decades, 1979-2017.
Researchers examined East Antarctica’s response to past and future climate change.
Investigators documented widespread meltwater movement onto and across Antarctic ice shelves.
Mapping showed increasing sensitivity of East Antarctica to supraglacial lake ponding.
Climatologists found that katabatic and foehn winds in Dronning Maud Land, together with cloud cover, control supraglacial lake distribution and future surface melt on Antarctic ice shelves.

1 / 3