GeoLog

meltwater

Imaggeo on Mondays: Flying Rocks

December 14, 2015
Imaggeo on Mondays: Flying Rocks
Flying Rocks . Credit: Franziska Glueer (distributed via imaggeo.egu.eu)

The picture was taken at a hillslope close to the glacier tongue of the Great Aletsch Glacier, the largest glacier in the Alps. With a length of 23 km it is located in the eastern Bernese Alps of Switzerland and composed of the three smaller glaciers Aletschfirn, Jungfraufirn and Eternal snow field converging at Concordia where the ice thickness was measured to be around 900m. The whole area was d ...[Read More]

Imaggeo on Mondays: Annapurna snow avalanche

December 7, 2015
Imaggeo on Mondays: Annapurna snow avalanche
Annapurna snow avalanche. Credit: Martin Struck (distributed via imaggeo.egu.eu)

The Annapurna massif is located in an imposing 55 km long collection of peaks in the Himalayas, which behave as a single structural block. Composed of one peak (Annapurna I Main) in excess of 8000 m, a further thirteen peaks over 7000 m and sixteen more of over 6000 m, the massif forms a striking structure within the Himalayas. Annapurna I Main, the tenth highest peak in the world, is towering at ...[Read More]

Imaggeo on Mondays: Trapped air

September 8, 2014

Can you imagine walking into the depths of an icy, white, long and cavernous channel within a thick glacier? That is exactly what Kay Helfricht did in 2012 to obtain this week’s Imaggeo on Mondays photograph. Tellbreen Glacier is a small glacier (3.5Km long) in the vicinity of the Longyearbyen valley in the Svalbard region of Norway. Despite its limited size, it is an important glacier. One of the ...[Read More]

Imaggeo on Mondays: Carving polar canyons

December 23, 2013

This week Ian Joughin, a research scientist from the Polar Science Center at the University of Washington, takes us on the polar express to put glacial processes into perspective and find out what makes a moulin… This canyon formed when a melt lake on the surface of the Greenland Ice Sheet overflowed and created a stream that extended out toward a crevasse field. This outflow stream filled a creva ...[Read More]