Fountain Glacier hydrology

The hydrology of the glacier is being studied by scientists from the University of Calgary. The drainage system is extremely well developed on the glacier surface, comprising numerous incised supraglacial streams and two impressive deep canyons. Drainage is, to some, degree, controlled by ice structures such as foliation and arcuate fractures.

Fountain Glacier hydrology
A spectacular canyon, occupied by a supraglacial stream, runs downglacier for several kilometres. Here, in its middle section, the dusty brown ice and clean snow of the canyon walls contrast strongly with the turquoise of the stream.
Fountain Glacier hydrology
As the surface profile of the glacier steepens, the canyon becomes more deeply incised and the walls approach vertical.
Fountain Glacier hydrology
The stream follows a deep meandering narrow cleft in the bottom of the canyon.
Fountain Glacier hydrology
The meandering channel at the base of the canyon, with prominent spurs between meanders.
Fountain Glacier hydrology
The canyon terminates at the snout as a steep gully with waterfalls.
Fountain Glacier hydrology
A small supraglacial stream pours over a waterfall at the terminal face of the glacier.
Fountain Glacier hydrology
One of the smaller supraglacial streams on the gently graded part of the glacier.
Fountain Glacier hydrology
A cryoconite hole, about 15 cm in diameter, containing ‘cryoconite’ comprising fine-grained sediment partly coagulated by algae and microbes
Fountain Glacier hydrology
Supraglacial streams are typically stepped and sinuous, even where the glacier surface gradient is uniform.
Fountain Glacier hydrology
Extensive surface melting and abundant small supraglacial streams characterise the surface of the snout during a warm July afternoon. Ice structure commonly controls the location of streams.
Fountain Glacier hydrology
Englacial stream emerging at the surface of a dead ice area near the true left-hand margin.
Fountain Glacier hydrology
Sharp changes in gradient in this steep supraglacial stream channel, give rise to a fountain-like effect.
Fountain Glacier hydrology
Three images, taken over several seconds, of a waterfall at the glacier snout, showing unusually strong pulsatory flow of water in a supraglacial stream. A surge is starting at the top right of the first image.
Fountain Glacier hydrology
Richard Waller about to cross a supraglacial stream. These features are among the most photogenic features to be found on glaciers.
  
Photos Michael Hambrey, July 2014