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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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September 7, 2017

Ventisquero Grande Glacier, Chile Retreats; Not so Grande in 2017

Ventisquero Grande Glacier comparison in Landsat images from 1997 and 2017.  Red arrows mark the 1997 terminus, yellow arrows the 2017 terminus, purple dots the snowline and purple arrow the junction of the tributaries.  Ventisquero Grande Glacier is at the head of Ventisquero Seno in the Cordillera Darwin of Tierra del Fuego.  The fjord is just west of Garibladi Fjord and opens into Darwin Channel.  Melkonian et al (2013) note widespread thinning of four large …

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August 31, 2017

Blackfoot Glacier, Glacier National Park Slow Recession Indicates Persistence

Comparison of Blackfoot Glacier in August Landsat images from 1998, 2015 and 2017 Blackfoot Glacier is the second largest glacier in Glacier National Park in Montana.  The glacier is on the north side of Mount Blackfoot and is close to two other glaciers Harrison and Jackson.  Glacier National Park over the last decade has initiated and maintained an extensive glacier monitoring program led by Dan Fagre.  This program has led …

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August 29, 2017

Saleina Glacier, Switzerland Terminus Separation

Saleina Glacier comparison in 1985 and 2015 Landsat images.  The red arrow is the 1985 terminus, the yellow arrow the 2015 terminus and the purple dots the transient snow line in these August images.  Saleina Glacier is south of Trient Glacier descending a steep eastward oriented valley from Aiguille d’Argentiere on the northern end of the Mount Blanc Range.  The Swiss Monitoring Network has maintained annual observations of the glacier …

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August 25, 2017

Record High Mont Blanc, France Glacier August Snow Lines 2017

Landsat image of the transient snow line on Mont Blanc Glaciers, France on 8/19/2017.  The average snow line (Purple dots) is at 3100 m.  Glaciers on Mer de Glace (M), Argentiere (A), Tour Glacier (L), Trient Glacier (T) and Saleina Glacier (S).  This has been a warmer summer in the Alps with reports emerging of various summer ski areas that take advantage of glaciers closing early or adding snow guns …

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August 23, 2017

Observing Glacier Runoff Changes Under the Same Weather Conditions

View of Sholes Glacier on August 8th in 2015 left and 2017 right.  Note difference in ratio of snow surface to ice surface exposed.  Sholes Glacier is at the headwaters of Wells Creek in North Fork Nooksack River watershed in Washington.  We have been measuring the mass balance of this glacier annually since 1990 and runoff in detail since 2012 (Pelto, 2015).  Glacier runoff in this watershed during late summer …

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August 14, 2017

Canadian Columbia River Basin Winter 2016-2017: A Late Rally

Guest Post by Ben Pelto, PhD Candidate, UNBC Geography, pelto@unbc.ca As the summer ticks by and the fall glacier field season approaches, I’ve realized that I never put out a winter 2016-2017 synopsis, so, like the snowfall this year, it’s arrived late. May 2017, Jesse Milner of the ACMG on the Nordic Glacier in front of the “meteor strike” a newly exposed rock face that spalls ice regularly. Photo by …

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August 1, 2017

34th Annual Field Program NORTH CASCADE GLACIER CLIMATE PROJECT 2017

  2016 Field Season Video NORTH CASCADE GLACIER CLIMATE PROJECT 2017 For the thirty fourth consecutive summer it is time to head 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 …

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