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You are browsing the archive for chile glacier retreat Archives - Page 2 of 3 - From a Glacier's Perspective.

February 15, 2016

San Quintin Glacier, Chile terminus disintegration 1987-2015

Landsat comparison of San Quintin Glacier in 1987 and 2015: red arrow indicates 1987 terminus location, yellow arrow indicates 2015 terminus location of the three main termini, and the purple arrow indicates upglacier thinning. San Quintin is the largest glacier of the NPI at 790 km2 in 2001 (Rivera et al, 2007).  The glacier extends 50 km from the ice divide in the center of the ice cap.  The peak …

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January 21, 2016

Balmaceda Glacier Retreat, Chile Releases Island

1986 and 2015 Landsat images of the Balmaceda Glacier, Chile region.  Red arrow indicates 1986 ice front, yellow arrow 2015 ice front and purple arrow a tributary that has detached. Balmaceda Glacier (Felicia Glacier) is at the southeastern end of the Southern Patagonia Ice Cap (SPI) field and drains into the Serrano River.  There is another glacier referred to as Balmaceda  that descends steeply almost to the shores of Fiordo Ultima Esperanza, hence Felicia …

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October 13, 2015

Colonia Glacier, Chile Retreat and Periodic Lake Outbursts

  Comparison of 1987 and 2015 Landsat images indicating retreat from red arrows to yellow arrows of 2.5 km and development of a new lake at the terminus. orange arrow indicates glacier dammed lake that fills and empties periodically.  Colonia Glacier drains east from the Northern Patagonia Icefield feeding the Baker River, Chile. It is the largest glacier draining east from the NPI.  A comparison of the 1987  and 2015 images indicate …

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September 21, 2015

Acodado Glacier, Chile Rapid Retreat 1987-2015

Landsat image comparison 1987 and 2015 Loriaux and Casassa (2013) examined the expansion of lakes of the Northern Patagonia Ice Cap. From 1945 to 2011 lake area expanded 65%, 66 square kilometers. Rio Acodado has two large glacier termini at its headwater, HPN2 and HPN3. that are fed by the same accumulation zone and comprise the Acodado Glacier. The glacier separates from Steffen Glacier at 900 m. The lakes at …

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September 17, 2015

Fraenkel Glacier Retreat, Patagonia, Chile

Fraenkel Glacier drains the west side of the Northern Patagonia Ice Cap (NPI) just south of Glaciar San Quintin. The retreat of this glacier in the last 30 years mirrors that of Gualas and Reichert Glacier, which also terminate in an expanding proglacial lake.   Davies and Glasser (2012) work, had an excellent Figure indicating two periods of fastest recession since 1870, are 1975-1986 and 2001-2011 for NPI glaciers.  They noted …

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March 26, 2015

North Leones Glacier Retreat and new Landslide, Patagonia, Chile

Jill Pelto, my daughter returning from fieldwork with UMaine in the Falkland Island took a picture last week out the plane window of Leones Glacier of the northern Patagonia Icefield. The picture illustrated two changes worth further examination, and the fact that if you have a glacier picture that you would like more information on let me know. The picture indicates outlet glaciers of the Northern Patagonia icefield fed by …

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March 10, 2015

Cordillera Lago General Carrera Glacier Retreat, Chile

You know southern Chile has lots of glaciers when an icefield with an area of 132 square kilometers has no named glaciers.  Davies and Glasser (2012) referred to this icefield as Cordillera Lago General Carrera, since it drains into that lake, the icefield is just east of the Northern Patagonia Icefield.   Davies and Glasser (2012)  noted that the icefield has a mean elevation of 1670 m and has declined from an …

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December 29, 2014

Roncagli Glacier Retreat, Tierra del Fuego, Chile

The Cordillera Darwin in Tierra Del Fuego, Chile is a remote area that is notorious for stormy, cloudy weather that makes for only a few good satellite images. Roncagli(Alemania) Glacier is the focus of this post and is an update to a previous post. The glacier has a terminus adjacent to the Beagle Channe(BC) and a secondary terminus in Lago Martinic (LM), 5 km upglacier. Velocity profiles by Melkonian et …

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December 23, 2014

Marinelli Glacier Retreat, Chile

Marinelli Glacier, Chile is the largest glacier of the Cordillera Darwin Icefield. This ice cap is in Tierra del Fuego, a region famous for cloudy, stormy weather. Fernandez et al. (2011) indicate that rapid retreat particularly since 1945 has led to high erosion and sedimentation rates. They also provide an excellent diagram of the glacier from three time periods. The glacier extended to the Little Ice Age-Neoglacial moraine at the …

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March 19, 2014

Verde Glacier Retreat, Chile

Verde Glacier is adjacent to Reichert Glacier and drains the north side of the Northern Patagonia Icefield. It is a small glacier compare to many outlet glaciers of the icefield that have been examined in previous posts, Reichert Glacier, Steffen Glacier, Nef Glacier, and Colonia Glacier. Here we examine Landsat imagery during the 1998-2014 period to identify the response of the glacier. The glacier flows from a pair of peaks …

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