Disintegration of a glacier tongue and formation of a new glacial lake, August 2002
In the summer of 2002 a new glacial lake was formed as a result of the rapid recession of the glacier tongue. While the lowest part of the tongue disappeared it was still possible, albeit with difficulty, to climb down to the ice following the old path. By autumn 2003 most of the icebergs had melted, and descending from the rock barrier was no longer possible as steep sections of the path had slipped away as a result of melting of stagnant ice within lateral moraines.
Tabular icebergs indicate that the glacier tongue floated prior to calving.
Taken from near the gorge, tabular icebergs
Icefall and ice-bounded meltwater channel
Telephoto view of the meltwater channel
The floating glacier tongue disintegrates into icebergs.
Along the lake's shore dead ice is exposed.
Icebergs floating in the newly formed glacial lake.
Background: hanging valley above the glacial lake.
Foreground: stagnant ice in the lateral moraine.
Calving adjacent to the lake's left-hand shore.
Dirt cones on the disintegrating glacier tongue.
On the edge of the meltwater channel, looking towards the riegel.
Small icebergs, also called "bergy bits".
On the edge of the meltwater channel
On the edge of the meltwater channel, icefall in the background
Runnels in ice resulting from meltwater-runoff.
|Fotos Jürg Alean|