Experts say they believe the iceberg fractured in May from Larsen C, a large ice shelf fed by several glaciers on the east side of the peninsula. They're still unsure whether it will cause the rest of the shelf to destabilize. It means that the ice shelf is changing, which is not surprising given the changes scientists have seen nearby, he said. Larsen A, an ice shelf farther north on the peninsula, broke up in Larsen B broke up in Larsen C itself calved an even larger iceberg in , Shuman said.
It was recorded at 2, square miles — larger than Maryland — until last July, when it calved an iceberg the size of Delaware, known as A The rectangular iceberg, photographed as part of a topographic mapping project tracking changes in polar ice shelves called Operation Ice Bridge, fractured in May after A crashed into Bawden, a rocky ice-covered island in the northwest, and created several small berg fragments. But the iceberg could continue to be resupplied with ice from land-based glaciers, as it was after the bigger iceberg broke up in Glasser, N.
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Pettit, and B. Davies, Journal of Glaciology , 57 : Cook, A. Vaughan, Overview of areal changes of the ice shelves on the Antarctic Peninsula over the past 50 years. The Cryosphere , 4 1 : Schwarz, J. Schodlok, Impact of drifting icebergs on surface phytoplankton biomass in the Southern Ocean: Ocean colour remote sensing and in situ iceberg tracking. Long, D. Ballantyn, and C. Bertoia, Is the number of Antarctic icebergs really increasing?
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Kwok, R. Rothrock, Geophysical Research Letters , 36 Share this If you enjoyed this post, please consider subscribing to the RSS feed to have future articles delivered to your feed reader. Ice shelves are attached to the land and receive ice through a combination of ice flowing into them, snowfall and sea water freezing onto their base.
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