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May 15, 2022

Sollipulli Volcano Glacier Recession Snow Cover Deficit

Landsat images of Sollipulli from 1986 and 2022. Point A-D are locations where the glacier spilled out of the caldera in 1986, but no longer does so in 2022. Nevados de Sollipulli is a volcano, is in the central Andes of Chile near the border with Argentina in Parque Nacional Villarica, Chile. The 4 km wide summit caldera at ~2100 m is filled by a glacier. The volcano is dormant …

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May 5, 2022

Alpine Glacier Incompatibality with Heat Waves

Heat waves and glaciers don’t usually go together; however, in the last several years an increasing number of heat waves have affected alpine glacier regions around the world.  This is true from Arctic Canada to the Himalayas from the Andes to Alaska. Here we review a number of these heat waves from 2018-2022, that I have been involved with assessing and observing. In particular heat waves leave a greater portion …

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April 26, 2022

East Twin Glacier Retreats from Twin Lake with Developing Icefield Disconnection

East Twin Glacier in Sentinel 2 images from 2017, 2019 and 2021. Point A marks the threshold, B the terminus contact with lake in 2017, Point 1 is the first ogive above the terminus. East Twin Glacier is a narrow valley outlet glacier from the Juneau Icefield.  The glacier descends from the icefield through an icefall at 975 m- 600 m that generate ogives at the icefall base. The extensive …

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April 18, 2022

A 50-year Project on Columbia Glacier Annual Monitoring 1984-2022, 39 Years In

1984-Landsat 5 is launched. The North Cascade Glacier Climate Project was initiated on Earth Day in 1984 with a goal of observing the impact of climate change on glaciers across this mountain range for 50 years. This was in response to a call to action by the National Academy of Sciences to have a project that monitored glaciers across an entire mountain range in the United States, and from climate …

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April 14, 2022

Hornopirén Glaciers, Chile continue a Spectacular Retreat 1985-2022

Rio Blanco Glaciers in Hornopirén Naitonal Park, Chile in Landsat 5 and 9 images from 1985 and 2022. Red arrows indicate 1985 terminus position, yellow arrows 2022 terminus position. Point A is an emerging bedrock nunatak and Point B is where tributary separation has occurred. Hornopirén National Park is in the Los Lagos region of Chile.  The park is host to a number of glaciers that are in rapid retreat.  Davies and …

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April 7, 2022

Novosilski Glacier, South Georgia Retreat Causes Separation

Novosilski Glacier in Landsat images from 2020 and 2022. Note the retreat near Point A in particular. The terminus that extended from Point B-C developed an embayment reaching Point A. 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 larger …

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April 1, 2022

Central Andean Glaciers Laid Bare for Last Half of Summer 2022

Volcan Overo in Sentinel image continues to fragment with no retained snowcover this summer, and bedrock expansion at Point A. For an alpine glacier to survive it must remain mostly snowcovered throughout the year, even at the end of the summer. This is one reason for the majesty of glaciated mountains, they shine brightly even in summer.  This year in the Central Andes of Argentina and Chile I have chronicled …

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March 22, 2022

Pashleth Glacier, BC Retreat Driven Fragmentation 1987-2021

Pashleth Glacier in 1987 Landsat and 2021 Sentinel image. Red arrow is 1987 terminus location, yellow arrow 2021 terminus location. Point B-D mark locations where separation has or is occurring along the main glacier and Point A on the western arm. Pashleth Glacier, British Columbia drains into Pashleth Creek a tributary to the Machmell River, Owikeno Lake and then River Inlet on the British Columbia Coast. Here we examine the …

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March 17, 2022

Cobre Glacier, Argentina Rapid Retreat and Area Loss in 2022

Cobre Glacier, Argentina in false color Sentinel 2 images from Jnauary 13, 2022 and March 16, 2022. Note the expansion of bedrock area amidst the glacier at Point A, glacier fragmenting at Point B and Point C. Cobre Glacier drains east from Cerro Orejas a 3949 m peak on the Chile-Argentina border and discharges into the Rio Tordillo. The summer of 2022 has been a difficult season for glaciers in …

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March 10, 2022

Ongoing Detachment at Victoria Glaicer, New Zealand

Victoria Glacier in Sentinel images from February 2017 and February 2022. Red arrow is 2002 terminus location, yellow arrow marks 2022 debris cover take over and beginning of stagnating ice region. Point C is lowest point of clean ice in 2017 and just above terminus in 2022. Point A, B and D are icefalls where detachment is underway. Victoria Glacier in New Zealand’s Southern Alps is the westward draining valley …

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