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You are browsing the archive for patagonia glacier retreat Archives - From a Glacier's Perspective.

May 7, 2021

Upsala Glacier Separation from Bertacchi Glacier, Argentina

Upsala Glacier (U) in Landsat images from 1999, 2016 and 2021 illustrating both retreat and the separation from Bertacchi Glacier (B). Cono Glacier (C) is the next tributary to the north. Upsala Glacier is a major outlet glacier of the Southern Patagonia Icefield. The glacier terminates in Lago Argentina and retreated substantially, 7.2 km from 1986-2014 (NASA, 2014). The retreat accelerated after 2008 (Sakakibara et al 2013). From 2014-2019 the …

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March 12, 2021

Gorra de Nieve East Glacier, Chile Retreat-Lake Expansion

Gorra de Nieve East Glacier in 1986 and 2021 Landsat images. Red arrow is the 1986 terminus location, yellow arrow is the 2021 terminus location, orange arrows the three main tributaries. The Gorra de Nieve massif is 50 km southwest of Monte San Lorenzo, draining its eastern flank the largest glacier of this massif is unnamed and referred to here as Gorra de Nieve East Glacier. The glacier consists of …

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February 17, 2021

Tres Puntas Glacier, Chile Loses 50% of its Length this Century

Tres Puntas Glacier, Chile in 1999 and 2021 Landsat imagery. Red arrow is 1999 terminus location, yellow arrow the 2021 location, Point A is where tributaries joined in 1999 and Point B is where an adjacent glacier drains west. Tres Puntas Glacier flow south from Cerro Tres Puntas draining south into Lago O’Higgins in Patagonia. The icefield is east of the Patagonia icefields where Davies and Glasser (2012) noted the …

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February 8, 2019

Cachalote Glacier, Chile Retreats From Lake and Separates

Cachalote Glacier in a 1984 Landsat image and 2019 Sentinel Image.  Red arrow is 1984 terminus location, yellow arrow the 2019 terminus location and the pink arrow a tributary to the glacier in 1984 that separates. Cachalote Glacier is on the western edge of the Southern Patagonia Icefield, Chile. The glacier is not fed by the main icefield, but is connected to glaciers that are.  The glaciers of the SPI have …

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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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March 6, 2018

Rio Engaño, Chile Headwater Glacier Retreat GLOF Threat Drops

Comparison of glaciers at the headwaters of Rio Engaño in 1984 and 2018 Landsat images. The 1984 terminus location with red arrows, yellow arrows the 2018 terminus location, purple arrows wind drift patterns. Rio Engaño drains into Lago General Carrera and its headwaters is a group of alpine glaciers.  In March of 1977 one of the glaciers, generated a glacier lake outburst flood (GLOF) that reached a depth of 1.5 m  at the …

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April 7, 2017

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 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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November 21, 2016

RG150-17.01019 Glacier Retreat, Southern Patagonia Forms Lake

  Retreat of RG150 indicated in Landsat images from 1984, 2001 and 2015.  Red arrow indicates 1984 terminus and yellow arrow 2015 terminus.  RG150 is a 3.5 km long glacier in Bernardo O’Higgins National Park on the western edge of the Southern Patagonia Icefield, Chile.  RG150 is an unnamed glacier given this designation as part of the Randolph Glacier Inventory.  The glacier terminates in a lake that drains into Seno …

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May 23, 2016

Bernardo Glacier, Patagonia, Chile Accelerated Retreat in Expanding Lake Complex

Comparison of 1986 and 2015 Landsat image of Bernardo Glaciers three termini, north, main and south. Red arrows indicate 1986 terminus location and yellow arrows the 2016 terminus location.  Indicating the substantial retreat of each terminus and lake expansion for the north and main terminus, while the lake drained at the southern terminus.  Bernardo Glacier is a difficult to reach outlet glacier on the west side of the Southern Patagonia …

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