Crevasses are a feature of ice sheets but how deep they extend has been a mystery. Now crevasse traces have been visually identified to 265 meters in a borehole in a fast-moving outlet glacier.
Ice sheets
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An Ancient Meltwater Pulse Raised Sea Levels by 18 Meters
Meltwater pulse 1A, a period of rapid sea level rise after the last deglaciation, was powered by melting ice from North America and Scandinavia, according to new research.
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Gravity Data Reveal Unexpected Antarctic Ice Variations
A new analysis of long-term satellite records shows the East Antarctic Ice Sheet is unexpectedly dependent on fluctuations in weather. This study may improve models of how much sea levels will rise.
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Cielos Despejados Sin Precedentes Condujeron a un Notable Deshielo en Groenlandia
A los científicos les preocupa que los modelos climáticos actuales no tomen en cuenta el impacto de las condiciones atmosféricas en la capa de hielo del Groenlandia, y en consecuencia, puedan subestimar drásticamente su derretimiento.
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Shrinking Ice Sheets Lifted Global Sea Level 14 Millimeters
Researchers measure both grounded and floating ice sheets using satellite data spanning a 16-year period.
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Unprecedented Clear Skies Drove Remarkable Melting in Greenland
Scientists are concerned that current climate models do not fully account for the impact of atmospheric conditions on the Greenland Ice Sheet and, consequently, may dramatically underestimate melting.
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What Lies Beneath Is Important for Ice Sheets
New research reconstructing the topography of Antarctica shows that the continent has 25% less land above sea level than when ice first started to accumulate 34 million years ago.
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A New Source of Sea Level Rise from Greenland: Ice Slabs
Runoff from the Greenland ice sheet’s high elevations could double by 2100, thanks to solid layers of ice hiding just beneath the surface.
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Freshwater Pools Show Antarctica Is More Vulnerable Than We Thought
East Antarctica’s lakes cluster in patterns similar to those on Greenland’s ice sheet, which is melting rapidly.
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Global Warming Is Conquering the Vikings
Ancient Arctic artifacts are disappearing as warming unfurls.