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Pages and Posts Tagged ‘glacier’

Mapping East Antarctica’s Uncharted Territory

WILLIAMS FIELD, NEAR MCMURDO STATION, ANTARCTICA-- East Antarctica contains nearly all the world's supply of fresh water and could contribute hundreds of feet of sea level rise, yet little is known about the stability of this vast ice sheet... {Read More »}

Facing the Glacier

ILULISSAT, GREENLAND-- Lisa and I had just flown into the tiny Ilulissat airport and were told we were catching a helicopter ride that afternoon to… {Read More »}

Helicopter Safari for Rocks

ILULISSAT, GREENLAND-- We were there for their first day of scouting near Kangerlussuaq, and had the chance to tag along with scientists Tom Neumann and Paul Bierman again on their last day of science in Greenland, recording this video dispatch... {Read More »}

Like Standing in a Bowl of Rice Krispies

ILULISSAT, GREENLAND-- Lisa and I were alone on the Greenland Ice Sheet while the scientists were doing helicopter surveys of the lakes. It was a gorgeous day when suddenly we heard more cracking and popping from the ice... {Read More »}

At the Lakes on the Ice Sheet

ILULISSAT, GREENLAND-- (By Mary Miller and Lisa Strong-Aufhauser) In this video, we are alone at a science camp where ice cracks can suddenly appear and drain vast lakes in less than an hour... {Read More »}

Cue the Rifle Shot

ILULISSAT, GREENLAND-- At first the scientists weren’t sure what was happening: a loud boom followed by reverberating cracks and pops coming from the direction of the ice-top lake. Then the water in the lake started receding and everyone realized that the ice underneath had opened up and was draining millions of gallons of water before their eyes... {Read More »}

How Old is the Greenland Ice Sheet?

KANGERLUSSUAQ, GREENLAND-- On his team's first day out in the field near Kangerlussuaq, Paul Bierman of the University of Vermont explains what kind of rocks they look for to help determine the last time Greenland was free of ice... {Read More »}

Miniature Ecosystems on the Ice

ILULISSAT, GREENLAND-- Here’s your bit o’ science jargon for the day: cryoconite. It’s a word I encountered in the Dry Valleys of Antarctica seven years… {Read More »}

Greenland’s Glacier Lakes, Pt. 2

ILULISSAT, GREENLAND-- When scientists try to discover why a large glacier in Greenland suddenly speeds up, they look for all kinds of clues, including the sudden flood of water to the base of the glacier when a giant melt lake cracks the ice open. In this video, we ask scientist Ian Joughin about the significance of these floods... {Read More »}

Greenland’s Glacier Lakes

ILULISSAT, GREENLAND-- The Exploratorium crew has moved to Ilulissat, a beautiful town 250 kilometers above the Arctic Circle on the west coast of Greenland. This is a gathering place for glaciologists because it’s close to the one of the world’s fastest-moving and most productive glaciers, the Jakobshavn glacier... {Read More »}