Scientists have found damage to two large Antarctic glaciers by satellite imagery, according to a new study.
U.S. And researchers from several other countries published a study Monday that found two of the fastest-changing glaciers in Antarctica, the Pine Island Glacier and the Thwets Glacier, developed “craves and open fractures” that show signs of their structural weakness. “
“These damaged areas include highly serviced areas and open fractures and are the first indication that the shear zones of both ice shelves have become structurally weak over the past decade,” the researchers wrote in the abstract.
Evolution of Damage in Amundsen Sea Ambience. (Photo credit: PNS research article, “Accelerates Ice Shelf Instability and Mass Loss in Amundsen Sea Ambience”)
Decades of changes in atmospheric and marine conditions have caused sea levels to rise due to melting glaciers. According to the study, Pine Island Glacier and Thwetz Glacier are responsible for 5% increase in global sea level.
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Both glaciers show different changes in recent decades as climate and ocean conditions change, causing sea-induced melting in their floating ice sheets, the researchers said.
According to the Scientific Times, global sea levels are rising at a rate of about 1.4 inches per year.
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If both glaciers break, Indrani Das, a research professor at Columbia’s International Thaits Glacier Collaboration and the Lamont-Doherty Earth Observatory, said, “Many neighborhoods also break, causing widespread collapse.” University, the outlet said.
The Thwaites Glacier in Antarctica is seen in this undated NASA image. (Handout by Reuters / NASA / Reuters)
Damage Evolution for Pine Island Glacier began around 1999, and Damage Evolution for Thaits Glacier began around 2000, but satellite imagery shows that it “moved on” around 2016.
The “shear zone” of glaciers has increased by about 30% since 1992, and the fastest increase between 2000 and 2010.
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Researchers have concluded that it is impossible for glaciers to collapse completely in the near future because surface-level melting is so low, but damage to the shear zone “makes them vulnerable to increasing mass damage and isolation of grounding lines.”
