Calving glaciers the topic of Friday Fireside chat

At this week’s Fireside Lecture, Dr. Roman Motyka, of the Geophysical Institute University of Alaska Fairbanks, and Jason Amundson, with the University of Alaska Southeast, will present a lecture on calving glaciers beginning tonight at 6:30 p.m. and repeating at 8 p.m. at the Mendenhall Glacier Visitor Center.

In an email this week, Motyka said the talk will “explore the mechanics of how glaciers calve, the different styles of calving, what triggers calving and the influence that oceans have on calving glaciers and vice versa.”

“We will provide examples based on our firsthand experiences and illustrate them by several of our time-lapse videos of major calving events,” he said. “We will focus on specific calving glaciers in Alaska, and then examine Jakobshavn Isbrae, a major outlet glacier in west Greenland.”

A massive calving event — roughly the size of Manhattan — at the Greenland glacier was captured last year and can be seen in the film “Chasing Ice.” Motyka said their talk will incorporate bits from that video and the “talk will help provide the scientific underpinnings for that film’s excellent footage of calving glaciers.”

This event is free and open to the public. Call 789-0097, for details.


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