Roundup: Measuring Ice, Alpine Lakes’s Biota, Risky Glacier Trek, IceBridge

How much ice is left underneath Alaska’s glaciers

“Scientists are trekking across Ruth Glacier in Denali National Park in Alaska, dragging a sled with ground-penetrating radar equipment over the ice. Their mission: reconstruct this glacier’s history and find out how much time these icy giants have left. “So what we’re interested in doing is looking at the relationship between temperature and precipitation rate and the response of glaciers in these areas to those changes,” says Karl Kreutz, a paleoclimatologist at the University of Maine.”

Read more at PBSNewshour.

 

Impact of glacier retreat on biota of Alpine lakes

“The rapid current retreat of glaciers constitutes one of the most prominent signs of climate change. Glacier retreat enlarges existing lakes and at the same time is creating new ones at the glacier terminus. A remarkable characteristic of glacier-fed lakes is their high content of suspended minerogenic particles, so-called ‘glacial flour’. The overarching objective of this proposal is to understand the consequences of glacier retreat for the structure and function of the biota of alpine lakes and to understand the governing ecological conditions in glacier-fed lakes, particularly of those recently created.”

Read more at Lake & Glacier Research Group.

 

Trek in Glacier National Park

“A near-fatal winter solo travel in Glacier National Park from Bowman Lake to Kintla Lake is one of several excursions Richard Layne will discuss at a meeting of the Bitterroot Cross Country Ski Club”

Read more at Missoulian.

 

IceBridge Surveys More of West Antarctica

“On Nov. 5, the IceBridge team carried out a survey of the Ferrigno and Alison ice streams and the Abbot Ice Shelf and ice along the Eights Coast. Weather forecasts showed clear conditions in West Antarctica, which typically only last for a few days. Less certain was how cloud cover would look in the Bellingshausen Sea, home of one of the mission’s highest priority flights. That uncertainty is what led mission planners to the decision they made.”

Read more at NASA.

 

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