US EditionStudy: Antarctic Glacier Retreats 15 Miles in Record Speed
- A CU Boulder-led study found Hektoria Glacier retreated by 8 kilometres and disintegrated nearly 50% between November and December 2022.
- The glacier's ice plain configuration meant Hektoria rested on flat bedrock, enabling it to go afloat and trigger rapid calving.
- Using satellite and seismic data, researchers found seismic instruments recorded glacier earthquakes coinciding with rapid retreat and satellite data revealed multiple grounding lines beneath Hektoria.
- Scientists warned the same conditions could greatly speed up sea level rise, and Ted Scambos, senior research scientist at the University of Colorado Boulder, said `This is astonishing; the rate of retreat is just crazy`.
- COLDEX researchers collected the oldest directly dated ice cores, six million years old, from Allan Hills, East Antarctica, using argon isotope dating and plan more drilling there.
78 Articles
78 Articles
There are no precedents since the Ice Age. Almost half of the Hektoria glacier, in eastern Antarctica, collapsed in just two months, losing 8.2 kilometers of ice, according to a study published in Nature Geoscience. Scientists warn of the impact of global warming on the stability of polar glaciers. This rapid retreat, one of the most drastic recorded in recent years, alerts to the acceleration of melting in the region and its possible consequenc…
Considerable shrinking of Antarctic glacier reported
Experts have expressed their concern after a study revealed that the Hektoria Glacier in eastern Antarctica retreated by 50% in just two months —between November and December 2022— losing 8.2 kilometers of ice. This rate of ice loss is nearly ten times faster than previously measured for land-based glaciers, setting a new record.
By Laura Paddison, CNN. An Antarctic glacier shrank by nearly 50% in just two months, the fastest retreat ever recorded in modern history, according to a new study — and the way it retreated could have major implications for global sea-level rise. The Hektoria Glacier, roughly the size of Philadelphia, sits on the Antarctic Peninsula, a thin mountain range that juts out from the continent like a thumb pointing toward South America. It is one of …
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