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ID:1639962
User:Zanoah
Article:Juneau Icefield
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[[Image:Juneau Icefield.jpg|thumb|right|275px|View of the Juneau Icefield]]The '''Juneau Icefield''' is an [[ice field]] located just north of [[Juneau, Alaska|Juneau]], [[Alaska]] and continues north through the border with [[British Columbia]] and is the fifth-largest ice field in the [[Western Hemisphere]],<ref>http://www.juneauicefield.com/</ref> extending through an area of {{convert|3,900|km2|mi2}} in the [[Coast Mountains|Coast Range]] ranging {{convert|140|km|abbr=on}} north to south and {{convert|75|km|abbr=on}} east to west. The icefield is the source of many [[glacier]]s including the [[Mendenhall Glacier]] and the [[Taku Glacier]]. The icefield is home to over 40 large valley glaciers and 100 smaller ones. The Icefield serves as a tourist attraction with many travellers flown in by helicopter for quick walks on the {{convert|240|to|1400|m|adj=on}} deep ice and the massive, awe-inspiring [[crevasse]]s. The icefield, like many of its glaciers, reached its maximum glaciation point around 1700 and has been in retreat since. In fact, of the icefield's 19 notable glaciers, the Taku Glacier is the only one presently advancing. Much of the icefield is contained within the [[Tongass National Forest]].
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The Juneau Icefield is an located just north Alaska and continues north through the border with [[British Columbia]] and is the fifth-largest ice field is home to over 40 large valley glaciers and 100 smaller ones. The Icefield serves as a tourist attraction with many travellers flown in by helicopter for quick walks on the deep ice and the massive, awe-inspiring [[crevasse]]s. The icefield, like many of its glaciers, reached its maximum glaciation point around 1700 and has been in retreat since. In fact, of the icefield's 19 notable glaciers, the Taku Glacier is the only one presently advancing. Much of the icefield is contained within the [[Tongass National Forest]].
   
Since 1948, the Juneau Icefield Research Program has monitored glaciers of the Juneau Icefield. On the west side of the icefield, from 1946-2009, the terminus of the Mendenhall Glacier has retreated over {{convert|700|m|mi}}.[[Image:NWCoast1a.png|thumb|right|275px|Locational map of major features of the [[Alaska Panhandle]] area including the Juneau Icefield in the northern portion]] Eight kilometers to the north, the [[Herbert Glacier]] has retreated {{convert|540|m|mi|abbr=on}}, while [[Eagle Glacier]] retreated {{convert|700|m|mi|abbr=on}}, Gilkey Glacier {{convert|3,500|m|mi|abbr=on}} and Llewellyn Glacier {{convert|2,800|m|mi|abbr=on}}. On the south side of the icefield, the [[Norris Glacier]] retreated {{convert|1,740|m|mi|abbr=on}}, the [[East Twin Glacier]] {{convert|1,100|m|mi|abbr=on}}, the [[West Twin Glacier]] {{convert|570|m|mi|abbr=on}} with only the Taku Glacier advancing. Surveys reveal the Taku as one of the deepest glaciers of the sub-temperate icefields surveyed at nearly {{convert|1,370|m}} thick. This glacier was advancing in 1890 when viewed by [[John Muir]] and had a large [[Ice calving|calving]] front. By 1963 the glacier had advanced {{convert|5.6|km|abbr=on}}. In 1948 the [[Taku Fjord]] had been completely filled in with glacial sediment and the glacier no longer calved. From 1948–1986 the glacier had a positive [[glacier mass balance]] driving the advance. From 1987–2009 the glacier has had a slightly negative mass balance, not enough to end the advance, but if it continues will soon slow it.
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Since 1948, the Juneau Icefield Research Program has monitored glaciers of the Juneau Icefield. On the west side of the icefield, from 1946-2009, the terminus of the Mendenhall Glacier has retreated over Locational map of major features of the Alaska Panhandle area including the Juneau Icefield in the northern portion Eight kilometers to the north, the Herbert Glacier has retreated , while [[Eagle Glacier]] retreated {{convert|700|m|mi|abbr=on}}, Gilkey Glacier {{convert|3,500|m|mi|abbr=on}} and Llewellyn Glacier {{convert|2,800|m|mi|abbr=on}}. On the south side of the icefield, the [[Norris Glacier]] retreated {{convert|1,740|m|mi|abbr=on}}, the [[East Twin Glacier]] {{convert|1,100|m|mi|abbr=on}}, the [[West Twin Glacier]] {{convert|570|m|mi|abbr=on}} with only the Taku Glacier advancing. Surveys reveal the Taku as one of the deepest glaciers of the sub-temperate icefields surveyed at nearly {{convert|1,370|m}} thick. This glacier was advancing in 1890 when viewed by [[John Muir]] and had a large [[Ice calving|calving]] front. By 1963 the glacier had advanced {{convert|5.6|km|abbr=on}}. In 1948 the [[Taku Fjord]] had been completely filled in with glacial sediment and the glacier no longer calved. From 1948–1986 the glacier had a positive [[glacier mass balance]] driving the advance. From 1987–2009 the glacier has had a slightly negative mass balance, not enough to end the advance, but if it continues will soon slow it.
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ZANOAH ISRAEL
Notable peaks on the Juneau Icefield are [[Devils Paw]] and the [[Mendenhall Towers]].
 
   
 
==See also==
 
==See also==
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