Tag

Glaciers

All articles tagged with #glaciers

Antarctica's Gravity Hole Deepens as Ice Sheets Expand Over Millions of Years
science6 days ago

Antarctica's Gravity Hole Deepens as Ice Sheets Expand Over Millions of Years

A new study maps Antarctica’s gravity hole and shows it has strengthened over tens of millions of years, coinciding with major climate shifts and glacier growth. Using global earthquake data to 'scan' the planet’s interior, researchers aim to understand how interior gravitational changes might influence ice-sheet dynamics and sea levels, though a direct causal link isn’t yet proven.

Antarctica’s buried terrain mapped in unprecedented detail, reshaping sea‑level forecasts
science27 days ago

Antarctica’s buried terrain mapped in unprecedented detail, reshaping sea‑level forecasts

Scientists mapped Antarctica’s subglacial terrain in unprecedented detail, revealing tens of thousands of previously unknown hills and ridges and a deep channel in the Maud Subglacial Basin about 50 meters deep, 6 kilometers wide, and 400 kilometers long; the work, published in Science and led by Helen Ockenden of Grenoble Alpes University, helps explain how buried features steer glacier flow and retreat and will refine predictions of future sea-level rise.

Satellites Reveal a Hidden Landscape Under Antarctica’s Ice
science1 month ago

Satellites Reveal a Hidden Landscape Under Antarctica’s Ice

Scientists released the most detailed map yet of Antarctica’s subglacial terrain by combining high-resolution satellite surface data with glacier-flow physics, uncovering tens of thousands of previously unknown hills and ridges (and glimpses of mountains and canyons) beneath the ice. Published in Science, the work provides a new tool to forecast how the ice may respond to climate change and influence sea-level rise, while noting that the results rely on assumptions and require further observations.

Antarctica's hidden bedrock revealed in ultra-detailed new map
science1 month ago

Antarctica's hidden bedrock revealed in ultra-detailed new map

A new, highly detailed map of Antarctica’s bedrock beneath the ice, created by combining satellite surface data with ice-flow physics, reveals thousands of previously unseen hills and ridges and a prominent 50m-deep, 6km-wide channel in the Maud Subglacial Basin; while uncertainties remain, the map offers a clearer view of the bedrock that could improve models of glacier movement and future sea-level rise, complementing radar surveys and aiding climate projections.

Alpine Glaciers Face Peak Extinction by 2050, Study Warns
environment2 months ago

Alpine Glaciers Face Peak Extinction by 2050, Study Warns

Glaciers in the European Alps are projected to reach their peak rate of extinction in eight years, with over 100 expected to vanish permanently by 2033, driven by human-caused global warming. Similar rapid losses are forecasted in North America and other regions, with significant implications for ecosystems, water resources, and cultural heritage. Urgent climate action and adaptation strategies are needed to mitigate these impacts.