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October 20, 2017

Glacier Retreat Generating New Islands List

Climate change has been driving the recession of glaciers and ice sheets, which in turn has been changing our maps.  One notable category of physical geographic features indicative of the change due to the retreat is the formation of new islands.  Below is a list of new islands that this blog has identified and reported.  This is not a comprehensive list of all islands that have been formed.   Upernavik Glacier, …

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October 17, 2017

Chako Glacier, Tibet Retreats From Proglacial Lake

Chako Glacier, Tibet in Landsat images from 1991, 2001 and 2017.  Red arrow indicates 1991 terminus, yellow arrow 2017 terminus, purple tributary glacier connection and orange arrow nearby icecap. Chako Glacier flows north from Chako Peak on the Nepal-Tibet, China border, in the Lugula Himal.  Glacier runoff eventually reaches the Yarlung Tsangpo and then the Brahmaputra River. Gardelle et al, (2013) identified this glacier as part of their West Nepal region, which experienced …

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October 11, 2017

Steenstrup Glacier, NW Greenland Releases New Island in 2017

Steenstrup Glacier front in 2015 and 2017 illustrating location with respect to the new islands at: Red Head-red arrow, Tugtuligssup Sarqardlerssuua at yellow arrow , and the 2017 new island at orange arrow.  Yellow dots indicate icefront and purple arrow another future island to be released from the glacier.   Steenstrup Glacier is located at 75.2 N in Northwest Greeland terminating in Melville Bay. The glacier terminates on a series of …

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October 6, 2017

Klinaklini Glacier, British Columbia Retreat Generates Large Icebergs

Klinaklini Glacier comparison in Landsat images from 1987 and 2017.  Red arrow 1987 terminus, yellow arrow 2017 terminus and snowline at purple dots. Klinaklini Glacier is the largest glacier in the Coast Mountains of British Columbia between Vancouver and Prince Rupert.  The glaier drains west and south from Mt. Silverthrone.  There is significant accumulation area above 2500 m and the glacier terminates at 300 m.  GLIMS noted the area in …

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October 3, 2017

34th Annual, 2017 North Cascade Glacier Climate Project Field Season

2017 Field Season Video For the thirty fourth consecutive summer we headed into the field to monitor the continued response of North Cascade glaciers to climate change.  In 1984 when I began this program we selected 10 key glaciers to monitor.  Two of these have now disappeared.  All the glaciers have retreated extensively and lost considerable volume.  The mass balance loss is 19 m of water equivalent thickness, which is over …

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September 28, 2017

Bishop Glacier Retreat, British Columbia Generates Substantial Alpine Lake

Bishop Glacier retreat in Landsat images from 1985 and 2017, 3000 m retreat. Red arrow is the 1985 terminus, yellow arrow is the 2017 terminus, purple dots is the snowline. B=Bishop, R=Ring, L=Lillooet. Bishop Glacier is a 10.5  km long western outlet glacier of the Lillooet Icefield in British Columbia. The glacier shares a divide with the eastern outlet Lillooet Glacier at 1750 m.  The glacier from 1985-2017 has ended …

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September 25, 2017

Field Glacier, Alaska Retreat, Leads to Glacier Separation

Field Glacier in Landsat images from 1984, 2013 and 2017.  The red arrow indicates the 1984 terminus, the yellow arrows the 2013 terminus and the yellow dots the 2017 terminus.  The purple arrows indicate developing lateral margin lakes in 2013 and purple dots the transient snowline. The Field Glacier flows from the northwest side of the Juneau Icefield, and is named for Alaskan glaciologist and American Geographical Society leader William …

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September 19, 2017

Aneto Glacier, Pyrenees Area Loss & 2017 Snowcover Loss

Landsat and Sentinel 2 image from 8/24/2017 indicating the lack of retained snowcover on Aneto Glacier.  The bare glacier ice ablates faster than snow.  Aneto Glacier in the Pyrenees of Spain is listed as its largest glacier in a 1984 inventory. In 1984 the glacier had an area of 1.32 square kilometers and a length of 1.6 km (Serrat and Ventura, 2005). The glacier is located on the northeast side of …

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September 14, 2017

Sulztalferner Retreat, Austria Bedrock Expansion Mid-Glacier

Sulztalferner in Landsat images from 1990 and 2017.  Red arrow is the 1990 terminus, yellow arrow the 2017 terminus, purple dots the snowline and the green arrow an area of emergent bedrock amidst the glacier.  Sulztalferner is a glacier in the Subaier Alps of Austria. The glacier begins at 3200 m below Daunkogel Peak and descends north from the peak.  Schlicker (2006) identified that between 1969 and 2003, 14 of the 88 …

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September 12, 2017

Bachfallenferner, Austria: 2017 Illustrates Why Glacier is Forecast to Not Survive

Comparison of Bachfallenferner (B) in Landsat images from 1990 and 2017.  The red arrow indicates the 1990 terminus position and yellow dots the 2017 terminus.  Note there is no retained snowcover in 2017 and a new lake has formed due to retreat. Other glaciers that lost all snowcover in 2017  L=Lisenser, A=Alpeiner and S=Sauischbachferner Bachfallenferner is in the Stubaier Alpen, Austria.  The glacier terminus fluctuations are examined annually and reported …

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