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The West
Northwall Firn was a remnant glacier of an icecap that in 1850 measured about 20 km (7.7 sq mi) and had 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
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of the New
Guinean glaciers indicated that in the two years from 2000 to 2002, the West Northwall Firn had lost a further 19.4% of its surface area. The glacial ice on Puncak Jaya was found to be about 32 meters (105 feet) thick and thinning at a rate of 7 meters (23 feet) per year during an
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expedition there in 2010. At that rate, the remaining glaciers in the immediate region near Puncak Jaya were expected to last only to the year 2015. Indeed, in or before 2017, the West
Northwall Firn had completely disappeared.
235:. The glacier was situated at an elevation of approximately 4,600 metres (15,100 ft) to 4,750 metres (15,580 ft), centered a little over 3 kilometres (1.9 mi) northwest of
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Sometime between 1936 and 1962, a single
Northwall Firn split into several separate glaciers, the largest being the West Northwall Firn and the
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The West
Northwall Firn is the small patch of ice at right center in this 2005 image. The circular depression to the left is the
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Kincaid, Joni L.; Andrew G Klein (2004). "Retreat of the Irian Jaya
Glaciers from 2000 to 2002".
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Puncak Jaya glaciers in 1972. Left to right: West
Northwall Firn, East Northwall Firn,
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269:. The Meren Glacier disappeared before the West Northwall Firn did. See also
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382:"Papua Glacier's Secrets Dripping Away: Scientists"
358:"Indonesia's Last Glacier Will Melt 'Within Years'"
243:(Carstensz Pyramid), the highest peak of Oceania.
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302:Retreat of glaciers since 1850
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496:. You can help Knowledge by
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333:61st Eastern Snow Conference
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162:4.0510250°S 137.1594250°E
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69:Show map of New Guinea
488:This article about a
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99:Show map of Indonesia
16:Glacier in Indonesia
278:East Northwall Firn
209:West Northwall Firn
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93:West Northwall Firn
63:West Northwall Firn
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390:. Retrieved
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150:04°03′3.69″S
335:: 147–157.
251:Puncak Jaya
241:Puncak Jaya
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140:Coordinates
121:Puncak Jaya
537:Categories
392:2011-10-23
367:2011-10-23
313:References
271:animation.
231:province,
225:New Guinea
131:province,
337:CiteSeerX
237:Ngga Pulu
233:Indonesia
133:Indonesia
296:See also
189:Rockfall
186:Terminus
117:Location
490:glacier
219:in the
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282:IKONOS
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211:was a
194:Status
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178:Area
109:Type
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
