Carstensz Glacier

Carstensz Glacier

The Carstensz Glacier is at lower right in this 2005 image. The circular depression to the left is the Grasberg mine, the world's largest gold mine.
Type Mountain glacier
Location Puncak Jaya, Sudirman Range, Papua province, Indonesia
Coordinates 04°04′59.32″S 137°10′44.77″E / 4.0831444°S 137.1791028°E / -4.0831444; 137.1791028
Area 0.686 km2 (0.265 sq mi) in 2002[1]
Length 1.4 km (0.87 mi)
Terminus Rockfall
Status Retreating

The Carstensz Glacier is near the peak of Puncak Jaya (sometimes called Mount Carstensz or the Carstensz Pyramid) which is a mountain in the Sudirman Range, western central highlands of Papua province, Indonesia. The glacier is situated at an elevation of approximately 4,600 metres (15,100 ft) and is 1.5 kilometres (0.93 mi) east of the summit tower of Puncak Jaya. The Carstensz Glacier is 1.4 kilometres (0.87 mi) in length and .60 kilometres (0.37 mi) wide.

The glacier is named after the 17th century Dutch explorer Jan Carstenszoon, commonly known as Jan Carstensz.

Background

Puncak Jaya region icecap in 1936.

Research presented in 2004 of IKONOS satellite imagery of the New Guinean glaciers indicated that in the two years from 2000 to 2002, the Carstensz Glacier had lost a further 6.8% of its surface area.[1] An expedition to the remaining glaciers on Puncak Jaya in 2010 discovered that the ice on the glaciers there is about 32 metres (105 ft) thick and thinning at a rate of 7 metres (23 ft) annually. At that rate, the remaining glaciers in the immediate region near Puncak Jaya are expected to last only to the year 2015.[2][3]

Puncak Jaya glaciers in 1972. Left to right: West Northwall Firn, East Northwall Firn, Meren Glacier (now disappeared), and Carstensz Glacier. See also animation.

The remaining remnant glaciers on Punkak Jaya were once part of an icecap that developed approximately 5,000 years ago. At least one previous icecap also existed in the region between 15,000 and 7,000 years ago, when it also apparently melted away and disappeared.[1]

Animated map of the extent of the glaciers of the Carstens Range from 1850 to 2003

See also

References

  1. 1 2 3 Kincaid, Joni L.; Andrew G Klein (2004). "Retreat of the Irian Jaya Glaciers from 2000 to 2002" (pdf). 61st Eastern Snow Conference. pp. 147–157. Retrieved 2011-11-03.
  2. ↑ McDowell, Robin (July 1, 2010). "Indonesia's Last Glacier Will Melt 'Within Years'". Jakarta Globe. Retrieved 2011-11-03.
  3. ↑ "Papua Glacier's Secrets Dripping Away: Scientists". Jakarta Globe. July 2, 2010. Retrieved 2011-11-03.
This article is issued from Wikipedia - version of the 4/17/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.