May 22, 2017

Besselsbreen Retreat Glacier Wide Thinning , Svalbard

Besselsbreen Retreat Glacier Wide Thinning , Svalbard

Besselsbreen (B) and Augnebreen (A) comparison in a 1990 and 2016 Landsat image. Red arrows indicate terminus position in 1990, yellow arrow indicates terminus in 2016, purple arrows indicate locations of upglacier thinning from 1990 to 2016 and the yellow line indicates the width of the tongue on the eastern side of Besselsbreen to the medial moraine with Augnebreen Besselsbreen Glacier flows north to  tidewater from the Barents Icecap on Barentsoya …

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May 18, 2017

Hinlopenbreen, Svalbard 7 km Retreat 1990-2016.

Hinlopenbreen, Svalbard 7 km Retreat 1990-2016.

Hinlopenbreen, Svalbard in 1990 and 2016 Landsat imagery.  red arrow is 1990 terminus, yellow arrow is 2016 terminus,and Oslobreen is noted by Point O Hinlopenbreen is a large tidewater glacier in northern Svalbard.  The glacier has a periodic history of surging, with the last surge occurring in 1970 (Nuth et al 2010). The glacier has the largest negative balance of -0.58 m/year from 1965-2005 (Nuth et al 2010).   The …

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May 15, 2017

Azaubashi Glacier Fragmenting, Mount Elbrus, Russia

Azaubashi Glacier Fragmenting, Mount Elbrus, Russia

Azaubashi Glacier (W) and Azau Glacier (A) in 1985 Landsat and 2016 Sentinel Image. Orange arrows indicate particular areas of fragmentation and bedrock expansion.  Pink arrows indicate connection  with Azau Glacier the terminus of which in 1985 is at red arrow and in 2016 is at yellow arrow.  Azaubashi Glacier is on the southwest side of Mount Elbrus, Caucasus Mountains of Russia, merging with the Greater Azau Glacier. The glacier drains …

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May 11, 2017

Borden Peninsula Ice Caps, Baffin Island Snowcover Where Art Thou

Borden Peninsula Ice Caps, Baffin Island Snowcover Where Art Thou

Borden Peninsula Ice Cap in 1997 and 2016 Landsat images.  Purple dots indicate the transient snowline.  Orange arrows indicate specific location of glacier thinning, retreat or area loss.  The Borden Peninsula is in the northeastern most section of Baffin Island.  Here we examine an ice cap that is on the edge of Lancaster Sound in Sirmilik National Park.  We use Landsat imagery from 1997 through 2016 to identify change.  This …

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May 4, 2017

Schlatenkees Accelerating Retreat, Austria 1988-2016

Schlatenkees Accelerating Retreat, Austria 1988-2016

Schlatenkees comparison in 1999 and 2016 Landsat images.  Red arrow is the 1988 terminus position, yellow arrow is the 2016 terminus location, purple dots indicate the snowline.  Schlatenkess (Glacier) is in the Venediger Alps draining into the Innergschlöss a tributary of the Isel River. The glacier is part of the network of glaciers examined by the Austrian Alpine Club annual glacier terminus survey supervised by Andrea Fisher.  Schlaten Glacier was …

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May 2, 2017

Gurudongmar Glacier Retreat and Teesta River Hydropower, Sikkim

Gurudongmar Glacier Retreat and Teesta River Hydropower, Sikkim

Gurudongmar Glacier draining ton Gurudongmar Lake B in Landsat images from 1996 and 1998 and Sentinel image from 2016.Red arrow is the 1996 terminus and yellow arrow the 2016 terminus.Point M indicates a terminal moraine belt, impounding the lake Teesta Urja Limited is this month finishing the 1200 MW Teesta Stage III hydro power project on. The project is a run of the river scheme in the North Sikkim district. The …

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April 28, 2017

Benito Glacier, Chile Retreats 2km 1987-2015

Benito Glacier, Chile Retreats  2km 1987-2015

Benito Glacier comparison in 1987 and 2015 indicating the terminus position in 1987 red arrows, yellow arrows the 2015 terminus positions, purple arrows where glacier thinning is expanding bedrock areas, the snowline is indicated by purple dots.  Glacier Benito is a temperate outlet glacier on the west side of the North Patagonian Icefield the glacier is south of  Fraenkel Glacier and north of Acodado Glacier. Loriaux and Casassa (2013) examined the expansion of lakes …

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April 26, 2017

Fasset Glacier, Alaska Retreats from Tanis Lake

Fasset Glacier, Alaska Retreats from Tanis Lake

Fasset Glacier in 1987 and 2016 Landsat images.  Red arrow indicates glacier front in 1987, pink arrows indicates areas where glacier retreat has exposed rock/bare ground and purple dots indicate snowline. Fasset Glacier drains west from The Brabazon Range near Yakutat and had terminated in Tanis Lake for the entire 20th century.  (Truessel et al 2013) and Truessel et al (2015) note the rapid retreat and thinning of nearby Yakutat Glacier. …

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April 21, 2017

Yakutat Glacier Terminus Collapse, 10 km retreat 1987-2016

Yakutat Glacier Terminus Collapse, 10 km retreat 1987-2016

Landsat images from 1987 and 2016 with terminus indicated by yellow dots. Point A indicates the 1987 terminus location and Point E the 2016 terminus location.  The Yakutat Glacier during the 1894-1895 Alaskan Boundary Survey ended near a terminal moraine on a flat coastal outwash plain. By 1906 the glacier had retreated from the moraine and a new lake was forming. Harlequin Lake. Surveys of the terminus of the glacier indicated …

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April 19, 2017

Nuusuaq Peninsula West Greenland Glacier Disintegration

Nuusuaq Peninsula West Greenland Glacier Disintegration

Comparison of alpine glaciers on Nuussuaq Peninsula in 1990 and 2016 Landsat images.  Each arrow is at a specific location in both images exhibiting glacier separation/disintegration.  The Nuussuaq Peninsula is just north of Disko Island in West Greenland and is home to many alpine glaciers and small ice caps.  Here we examine the furthest west group of alpine glaciers on the peninsula.  This group is 125 km west of the ice …

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