Wednesday, September 28, 2016

100 Foot Thick Glacier Collapses: 4 Square Miles covered with dirt, ice and Glacial debris GLOBAL WARMING IS REAL!

http://www.dailykos.com/story/2016/09/16/1570665/-Massive-100-foot-thick-glacier-tongue-collapses-and-covers-4-square-miles-with-rock-and-ice?detail=email&link_id=1&can_id=fe4020b37f6b0a9909f482166cdbbdf9&source=email-massive-100-foot-thick-glacier-tongue-collapses-and-covers-4-square-miles-with-rock-and-ice&email_referrer=massive-100-foot-thick-glacier-tongue-collapses-and-covers-4-square-miles-with-rock-and-ice&email_subject=massive-100-foot-thick-glacier-tongue-collapses-and-covers-4-square-miles-with-rock-and-ice

The cause of the avalanche is unclear. “This is new territory scientifically,” said Kääb. “It is unknown why an entire glacier tongue would shear off like this. We would not have thought this was even possible before Kolka happened.”
Kääb’s preliminary analysis of satellite imagery indicates that the glacier showed signs of change weeks before the avalanche happened. Normally, such signs would be clues the glacier might be in the process of surging, but surging glaciers typically flow at a fairly slow rate rather than collapsing violently in an avalanche.
After inspecting the satellite imagery, University of Arizona glaciologist Jeffrey Kargel agreed that a surging glacier could not be the cause. “The form is completely wrong,” he said. “It must be a high-energy mass flow. Maybe liquid water lubrication at the base played some role,” he said.

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