April 14, 2017

Swiftcurrent Glacier, British Columbia, Swiftly Retreating 1986-2015

Swiftcurrent Glacier, British Columbia, Swiftly Retreating 1986-2015

Swifttcurrent Glacier Comparison from 1986 and 2015 Landsat images.  Red arrow is the 1986 terminus, yellow arrow 2015 terminus, purple arrow significant tributaries in 1986, and purple dots the snowline. Swiftcurrent Glacier drains the southeast side of Mount Longstaff 15 km NW of Mount Robson.  The glacier is near the headwaters of the Fraser River, and its retreat since 1986 has led to the formation of a new alpine lake. Here …

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April 12, 2017

Beautiful British Columbia Land of Many Mountains & Dwindling Glaciers

Beautiful British Columbia Land of Many Mountains & Dwindling Glaciers

  British Columbia is host to many mountain ranges; Purcell, Monashee, Bugaboo, Selkirk, Cariboo, Coat Range, Kootenay, Kwadacha are just some of the diverse mountain ranges  that host glaciers and span climate zone. A shared characteristic today regardless of climate zone or mountain range is dwindling glacier size and volume.  Bolch et al (2010) found that from 1985-2005 Alberta glaciers lost 25% of their area and BC glaciers 11% of …

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April 7, 2017

Bernal Glacier, Retreating from Chilean Fjord

Bernal Glacier, Retreating from Chilean Fjord

Bernal Glacier terminus looking towards Estero las Montañas from Eñaut Izagirre and Camilo Rada. Bernal Glacier drains east from the Sarmiento de Gamboa Range in Southern Patagonia terminating a short distance from the Estero las Montañas. The glacier is in the Alacalufes National Reserve and can be seen from boats traveling up the fjord. Davies and Glasser, (2012) indicate extensive recession of almost all glaciers in the range from 1870-2011. The …

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April 3, 2017

Dama Blanca Glacier Retreat, Southern Chile

Dama Blanca Glacier Retreat, Southern Chile

Dama Blanca Glacier in Landsat images from 1986 and 2017.  Red arrow is the 1986 terminus, yellow arrow the 2017 terminus, purple dots the snowline and purple arrows a bedrock ridge. Dama Blanca Glacier drains west from Chile’s Sarmiento de Gamboa Range in Southern Patagonia. terminating in Lago Verde in the Alacalufes National Reserve. Alacalufes NR features kelp rich fjords, Northofagus coastal forests and glacier clad alpine zones. Davies and Glasser, …

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March 29, 2017

Vallunaraju Glacier Retreat, Peru 1992-2016

Vallunaraju Glacier Retreat, Peru 1992-2016

Vallunaraju Glacier comparison in Landsat images from 1992, 1995 and 2016.  Red dots represent the 1992 margin and yellow dots the 2016 margin The Cordillera Blanca, Peru has 27 peaks over 6,000m, over 600 glaciers and is the highest tropical mountain range in the world. Glaciers are a key water resource from May-September in the region (Carey, 2010).  Mark Carey describes the importance of glacier runoff to the Andean society in …

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March 26, 2017

Depot & Mondor Glacier Retreat, Antarctic Peninsula

Depot & Mondor Glacier Retreat, Antarctic Peninsula

Mondor and  (M) and Depot Glacier (D) at the tip of the Antarctic Peninsula in Landsat imagers from 1988, 2000 and 2017.  Yellow arrows indicates the 2017 terminus location of each.  The purple arrow indicates a bedrock ridge that has been expanding. On the Trinity Peninsula,which is the region at the tip of the Antarctic Peninsula, are Depot and Mondor that flow north and south from the same accumulation zone …

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March 22, 2017

Hallo Glacier Retreat, Katmai Alaska

Hallo Glacier Retreat, Katmai Alaska

Landsat images of Hallo Glacier in 1985 and 2015 indicating the 1985 terminus position red arrows and yellow dots indicate 2015/2016 terminus location.  Purple dots show the snowline Hallo Glacier is one of the larger glaciers in Katmai National Park draining east from Mount Steller and ending in an expanding proglacial lake east of Hallo Bay.  Hallo Bay is well known as a good location for brown bear watching (NPS).  Arendt …

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March 17, 2017

Bridge Glacier Terminus Collapse, BC, 4 km retreat 1985-2016

Bridge Glacier Terminus Collapse, BC,  4 km retreat 1985-2016

Bridge Glacier comparison in 1985 and 2016 Landsat Images.  Red arrow is the 1985 terminus, yellow arrow the 2016 terminus and purple arrows indicate locations where tributaries have separated between the two dates.  Bridge Glacier is an 17 km long outlet glacier of the Lillooet Icefield in British Columbia. The glacier ends in a rapidly expanding glacial lake and had an observed retreat rate of 30 m per year from …

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March 15, 2017

Klippi Glacier Retreat Causes Separation, British Columbia

Klippi Glacier Retreat Causes Separation, British Columbia

Klippi Glacier in Landsat images of 1987 to 2016. Red arrows indicate 1987 terminus, yellow arrows 2016 terminus and purple dots the transient snowline.  The glacier beings at 2600 m sharing a divide with Klinaklini Glacier, flowing northwest from Silverthrone Mountain and terminating at  1040 m in 1987. Klippi Glacier drains into the Machmell River, Owikeno Lake and then River Inlet on the British Columbia Coast. The Machmell River is …

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March 9, 2017

Cavagnoli Glacier, Switzerland Fading Away

Cavagnoli Glacier, Switzerland Fading Away

Google Earth image of Cavagnoli in 2010 and a Sentinel 2 image from Sept. 9  2016.  Ice masses are numbered.  No retained 2016 snowpack, note the lighter colored snow on the upper Basodino Glacier Cavagnoli Glacier (Ghiacciaio dei Cavagnöö) drains south into Lago dei Cavagnoli (Lago dei Cavagnöö), which is impounded by a dam that is 111 meters high.  The glacier like its neighbor Basodino Glacier  is in the Ticino River …

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