The document discusses two processes that contribute to glacier instability. The first process involves warm air, rain, and meltwater creating fissures in the ice shelf, leading to large sections breaking off and forming vertical ice cliffs. The second process involves warm ocean currents eroding the glacier's base, causing the collapse of unstable cliffs above the waterline due to their weight. These cliffs are approximately 300 feet tall. Key factors include temperatures above freezing, crevassing, hydrofracturing, ocean currents, and glacial retreat.
documents/EFTA01190034.pdf
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