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December 5, 2016
Nevado Soral, Bolivia Glacier Retreat Separation Imminent 1988-2016
Landsat comparison from 1988 to 2016 of Nevado Soral Glaciers, Bolivia. Red arrow is the 1988 terminus, yellow arrow the 2016 terminus, orange arrow is the glacier junction and the purple arrow areas of rock expansion indicating upglacier thinning. Nevado Soral is in the Cordillera Apolobamba Range of the Bolivian Andes. A significant valley glacier flows south from the mountain joining a northward flowing glacier shortly above the terminus. The …
July 18, 2016
Chaupi Orko Glaciers, Bolivia Extensive Recession
Landsat comparison of the Chaupi Orko Glaciers from 1988, 1999 and 2015. Red arrows indicate 1988 terminus and yellow arrows the 2015 terminus location. Chaupi Orko is a 6044 m Andean peak in the Cordillera Apolobamba on the Peru-Bolivia border with glaciers radiating from it summit. Here we examine a pair of glaciers on the southern side of the mountain that drain into Laguna Suches, which is split by the …
March 1, 2015
Zongo Glacier Retreat, Bolivia 1994-2014.
Zongo Glacier, Bolivia extends 2.9 km down the south side of Huayna Potosi from 6000 m to 4900 m. Zongo Glacier is a small valley glacier located 30 km north-east of La Paz, and its runoff is directed to an important hydraulic power station which supplies La Paz. Note Laguna Milluni in foreground of the first image. The dam is visible as is the power station to the right and …
April 21, 2013
Nevado Cololo Glacier Retreat, Bolivia
Nevado Cololo is a glaciated mountain area in the Cordillera Apolobamba of northwest Bolivia. Here the focus is on a glacier draining west from the Nevado Cololo into the Rio Suches and then Lake Titicaca. The glaciers of the Apolobamba have lost 48% of their area from 1975-2006 (Hoffmann, 2012). Hoffmann and Weggenmann (2012) have observed both the extensive retreat, new lake formation, and the problem of glacier lake outbursts …
April 18, 2013
Laramcota Glacier Retreat, Bolivia
Laramcota Glacier is in the Cordillera Tres Cruces of Bolivia. The glacier feeds into Laguna Laramcota and eventually the Rio Boopi, Rio Beni and finally the Amazon River. The glaciers of Bolivia have received much less scrutiny than those in Peru or Chile, but are quite numerous. Riberio et al (2005) noted a 32% loss of glacier area inn the Tres Cruces from 1972-1999 using satellite imagery. Melocik (2010) in …
December 13, 2009
Zongo Glacier retreat
Zongo Glacier, Bolivia extends 2.9 km down the south side of Huayna Potosi from 6000 m to 4900 m. Zongo Glacier is a small valley glacier located north-east of La Paz, and its runoff is directed to an important hydraulic power station which supplies La Paz. Note Laguna Zongo in foreground of the first image. The dam is visible as is the power station to the right and below the …
Dean of Academic Affairs at Nichols College and Professor of Environmental Science at Nichols College in Massachusetts since 1989. Glaciologist directing the North Cascade Glacier Climate Project since 1984. This project monitors the mass balance and behavior of more glaciers than any other in North America.