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January 28, 2019

Turbio Glacier Retreat, Argentina Generates New Lake

Turbio Glacier retreat from 1986 to 2018 in Landsat images.  Red arrow is 1986 terminus location, yellow arrow 2018 terminus location and pink arrow glacier across the border in Chile. Turbio Glacier is at the headwaters of the Turbio River, Argentina and flows into Lago Puelo.  The glacier descends east from  Chile/Argentina border at 1500 m descending into a low slope valley at 1300-1000 m.  From 1986-2018 this glacier like …

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January 25, 2019

Tic Toc Glacier, Chile Rapid Losses with Time 1986-2019

Tic Toc Glacier (TT) and Oeste Glacier (O) in 1986 and 2018 Landsat images.  Red arrow is the 1986 terminus, yellow arrow is the 2018 terminus location, purple dots the snowline. Tic Toc Glacier at the headwaters of the Rio Tic Toc and the adjacent Rio Oeste headwater glacier Oeste Glacier are in the Parque Nacionale Corcovado of Palena Province of Chile.  Davies and Glasser (2012) noted that overall glaciers in …

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January 20, 2019

Novosilski Glacier, South Georgia 2.5 km Retreat 2001-2018

Novosilski Glacier in Landsat images from 2001 and 2018. Red arrow indicates 2001 terminus location, yellow arrow the 2018 terminus location, pink arrows the fringing grounded sections of marginal ice. Novosilski Glacier is a large tidewater outlet glacier on the west (cloudier) coast of South Georgia terminating in Novosilski Bay It shares a divide with the rapidly retreating Ross and Hindle Glacier on the east coast.  Gordon et al. (2008) observed that …

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January 16, 2019

Cape Longing, Antarctica Transitioning to Island via Glacier Retreat

Cape Longing, Antarctica in 2001 and 2018 Landsat images. Point A-G are at specific locations. Yellow dots mark the margin of the glacier connecting the Cape to the main Antarctic Peninsula. Cape Longing is on the Antarctic Peninsula between Larsen Inlet and Prince Gustav Channel.  Larsen Inlet along the south shore of Cape Longing was covered by the Larsen A Ice Shelf until its collapse in 1995. The Prince Gustav …

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January 9, 2019

Drogpa Nagtsang Glacier, China Mass Balance Loss, Separation, Slow Down

Drogpa Nagtsang Glacier change in Landsat image from 1989 and 2018.  Yellow arrow indicates 2018 terminus location, red arrow 1989 terminus location, red dot the lowest elevation of clean glacier ice. Points A-E are the same locations for comparison. Drogpa Nagtsang Glacier, China is a glacier that is 30 km west of Mount Everest that terminates in an expanding proglacial lake. The glacier begins on the Nepal border at 6400 …

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January 7, 2019

Muller Ice Shelf, Antarctica 2018 Calving Event

Comparison of the ice front-yellow dots, icebergs-pink arrow and rifting-blue arrow in March 2018 and November 2018 Landsat images. A=Antevs Glacier, B=Bruckner Glacier, H=Humphreys Island and M=Muller Ice Shelf. New iceberg is at the lowest pink arrow adjacent to western calving front. Muller Ice Shelf is on the west side of the Antarctic Peninsula and  is one of the smallest remaining ice shelves covering 40 km2 in 2007. It is …

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January 2, 2019

Chaba Glacier, Alberta Retreat and Icefall Separation

Chaba Glacier in 1986 and 2018 Landsat images.  Red arrow is 1986 terminus location, yellow arrow 2018 terminus location, pink arrows bedrock steps in icefall area, orange arrow, adjacent glacier and purple dots the snowline. Chaba Glacier is a valley glacier descending from the Chaba-Clemenceau Icefield ending in the headwaters regions of the Athabasca River in Alberta.  Jiskoot et al (2009) examined the behavior of the Clemenceau Chaba Icefield and found that …

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December 28, 2018

Erasmo Glacier, Chile Terminus Collapse and Aquaculture

Erasmo Glacier retreat in Landsat image from 1987 and Sentinel image from 2018. Red arrow is 1987 terminus, orange arrow 2016 terminus and yellow arrow 2018 terminus. Points A-D mark areas of expanding bedrock exposure. Cerro Erasmo at 46 degrees South latitude is a short distance north of the Northern Patagonia Icefield and is host to a number of glaciers the largest of which flows northwest from the mountain. This …

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December 26, 2018

Videla Glacier Retreat, Tierra del Fuego, Chile Generates New and Expanding Lakes

Videla Glacier, Chile in 1997 and 2018 Landsat images. Red dots mark the 1997 terminus locations, yellow dots the 2018 terminus position and purple dots the snowline.  Videla Glacier is a land terminating glacier in the northwest portion of the Cordillera Darwin Icefield (CDI). The glacier has terminates in several expanding proglacial lakes each in front of a different tongue of the glacier. The glacier flows northwest from Cerro Ambience …

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December 22, 2018

Gandbreen Retreat and Lake Expansion, Svalbard

Gandbreen in 1990 and 2018 Landsat images.  The red arrow indicates 1990 terminus location, yellow arrows the 2018 terminus location, and purple arrow a location where bedrock emerges.  Gandbreen is a western outlet of the Edgeøya Ice Cap, Svalbard.  This is a surging glacier, that has not had an observed surge.  Deltabreen a larger adjacent glacier to the south has no observed either.  Strozzi et al (2017) noted that the western outlet …

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