Clik here to view.
The Grand Greenland Canyon
One of the properties of radar is that it can pass through hundreds of metres of ice to be scattered by the bedrock beneath and return to the surface with sufficient remaining power to allow...
View ArticleClik here to view.
Evidence for North Atlantic current shut-down ~120 ka ago
Warming surface currents of the North Atlantic (credit: Wikipedia) A stupendous amount of heat is shifted by ocean-surface currents, so they have a major influence over regional climates. But they are...
View ArticleClik here to view.
When did the Greenland ice cap last melt?
The record preserved in cores through the thickest part of the Greenland ice cap goes back only to a little more than 120 thousand years ago, unlike in Antarctica where data are available for 800 ka...
View ArticleClik here to view.
Subglacial impact structure: trigger for Younger Dryas?
Radar microwaves are able to penetrate easily through several kilometres of ice. Using the arrival times of radar pulses reflected by the bedrock at glacial floor allows ice depth to be computed. When...
View Article
