At 13kms, Fox Glacier is the longest of the awe-inspiring New Zealand West Coast glaciers. At its head, soaring peaks of over 3,000m (10,000ft) dominate the vista. These include Aoraki (Mt Cook) and Mt Tasman, which, weather permitting, can be viewed on our heli-hiking experience. This mighty moving river of ice falls 2,600 metres, or a little over 8,000ft, on its journey from the base of the Southern Alps to the West Coast. New Zealand’s West Coast glaciers are unique and probably the most accessible glaciers in the world, as they terminate amongst temperate rainforest just 250m above sea level. So special is this mountain environment, that it forms part of the South Westland World Heritage Area.
Fox Glacier moves fast...The unique combination of climate and shape means that Fox (and Franz Josef) Glaciers move at approximately 10 times the speed of other valley glaciers around the world. At Fox Glacier this is due to the funnel-like shape of the glacial valley and the huge nevé, the snow accumulation area, at the top of the glacier. Fox Glacier’s nevé is 36 square kms, bigger than the whole of Christchurch City!
...and is currently advancing!Glaciers constantly advance and retreat, held in delicate balance by the accumulation of snow gained in the upper glacier and ice melting in the lower part. An increase in snowfall at the nevé will result in the glacier advancing. Correspondingly, a faster melt will result in the glacier retreating. Overall Fox Glacier has been advancing since 1985.
No comments:
Post a Comment