sub-glacial

The principal investigator of this investigation, Joseph Prospero, an atmospheric chemist at the University of Miami, warns that: "These glaciers are retreating, and if they continue to retreat, then you're going to be exposing more of this sub-glacial grinding."

Arctic dust storms: really? Steve Tracton 2010

The extensive summer melt is drained by large meltwater rivers often running in deep canyons and disappearing through moulins (glacial holes) into a sub-glacial drainage system sometimes termed ice karst. 50 km from the glacier front the ice becomes increasingly rugged; lakes and water-filled crevasses disappear.

Ilulissat Icefjord, Denmark-Greenland 2008

Scientists suspect these sub-glacial floods lubricate the bedrock under the ice sheets of Greenland and Antarctica, like a water slide, and accelerate the rate at which glaciers flow to the sea and break apart.

The Sober Science of Migrating Rubber Duckies 2008

The outermost 10 km of the glacier is mostly a floating mass of ice except at an ice rumple on the southern edge over a sub-glacial sill.

Ilulissat Icefjord, Denmark-Greenland 2008

At the junction that is created at this point an ice rumple above the center of a sub-glacial sill restricts the main stream to a width of only 4 km.

Ilulissat Icefjord, Denmark-Greenland 2008

However, my first comment concerns the evidence for unprecedented glacier retreat based on several radiocarbon dates from two different laboratories for a single rooted sub-glacial plant deposit.

New Thompson Article at PNAS « Climate Audit 2006

If the “ancient sub-glacial plants” find holds up I want to see the evidence that those plants were actually growing there, that is strong evidence for something unusual happening now.

NAS Panel Excerpts: #1 PCs « Climate Audit 2006

Unfortunately the paper gives no details about the location of the find, the nature of the sub-glacial geology and topography so it is difficult to draw any further judgement.

New Thompson Article at PNAS « Climate Audit 2006

This competitive struggle takes place in all plant-communities, with perhaps the sole exceptions of sub-glacial communities and in deserts.

Introduction to the Science of Sociology Robert Ezra Park 1926

Even with the roar of sub-glacial thunders hammering on his ear drums, he rushed to the man's assistance.

The Heart of Unaga Ridgwell Cullum 1905